阅读说明：本技术 吸收性物品 (Absorbent article ) 是由 穆沁一 于 2019-12-18 设计创作，主要内容包括：提供一种能够在利用后处理用构件卷起来的状态下清洁地废弃的吸收性物品。吸收性物品(1)具有：主体部(20),其具有表面片(21)、背面片(22)以及吸收芯(23)；以及后处理用构件(30),其具有向非肌肤面侧突出的钩构件(31)。钩构件构成为,在以吸收性物品的肌肤面侧处于内侧的方式弯折了吸收性物品的状态下该钩构件能够固着于所述表面片。吸收性物品具有配置于后处理用构件的非肌肤面侧且覆盖钩构件的包覆片(40)。(Provided is an absorbent article which can be cleanly discarded in a rolled state by means of a post-treatment member. An absorbent article (1) is provided with: a main body (20) having a front sheet (21), a back sheet (22), and an absorbent core (23); and a post-treatment member (30) having a hook member (31) protruding toward the non-skin surface side. The hook member is configured to be capable of being fixed to the topsheet in a state where the absorbent article is folded so that the skin surface side of the absorbent article is on the inside. The absorbent article has a cover sheet (40) which is disposed on the non-skin surface side of the post-treatment member and covers the hook member.)

1. An absorbent article having:

a front-back direction;

a width direction orthogonal to the front-rear direction;

a main body section having a front sheet, a back sheet, and an absorbent core; and

a post-treatment member having a hook member protruding toward the non-skin surface side, wherein,

the hook member is configured to be capable of being fixed to the topsheet in a state where the absorbent article is folded so that the skin surface side of the absorbent article is positioned inside,

the absorbent article has a cover sheet disposed on the non-skin surface side of the post-treatment member and covering the hook member.

2. The absorbent article of claim 1,

the cover sheet is at least one of an independent packaging sheet for independently packaging the absorbent article and a release sheet for covering an adhesive section provided on the non-skin surface of the main body section.

3. The absorbent article of claim 2, wherein,

the cover sheet includes both the individual package sheet and the release sheet.

4. The absorbent article according to any one of claims 1 to 3, wherein,

the wrapping sheet has an individual packaging sheet that individually packages the absorbent article,

in a state of being individually packaged by the individually packaged sheet, a color difference Δ E between an adjacent region adjacent to the post-treatment member and a region where the post-treatment member is disposed is 3.0 or more.

5. The absorbent article according to any one of claims 1 to 4, wherein,

the member for post-treatment and a main body adhesive section for bonding the main body section to a wearing article are provided on a non-skin surface side of the main body section in a core placement region where the absorbent core is placed in a plan view,

the main body bonding portion is disposed in a width region extending in the width direction from the aftertreatment member.

6. The absorbent article according to claim 5,

in the width region, the main body bonding portion and the aftertreatment member are arranged with a space in the width direction.

7. The absorbent article of claim 6,

the distance in the width direction between the main body adhesive part and the post-treatment member is longer than the distance in the thickness direction between the surface of the main body adhesive part on the non-skin surface side and the tip of the hook member.

8. The absorbent article according to any one of claims 5 to 7, wherein,

the distance in the thickness direction between the non-skin surface of the main body portion and the tip of the hook member is longer than the distance in the thickness direction between the non-skin surface of the main body portion and the non-skin surface of the main body adhesive portion.

9. The absorbent article according to any one of claims 5 to 8, wherein,

the length of the main body bonding portion in the width direction is longer than the length of the aftertreatment member in the width direction.

10. The absorbent article according to any one of claims 5 to 9, wherein,

the length of the body bonding portion in the front-rear direction is longer than the length of the aftertreatment member in the front-rear direction.

11. The absorbent article according to any one of claims 1 to 10, wherein,

the area of the post-treatment member is less than 20% of the area of the entire main body.

12. The absorbent article according to any one of claims 1 to 11, wherein,

the length of the aftertreatment member in the width direction is 1/3 or less of the length of the absorbent core in the width direction.

13. The absorbent article according to any one of claims 1 to 12, wherein,

the post-treatment member is disposed across the center of the main body in the width direction.

14. The absorbent article according to any one of claims 1 to 12, wherein,

the post-treatment members are arranged in pairs with the center of the main body in the width direction therebetween.

15. The absorbent article according to any one of claims 1 to 14, wherein,

the absorbent article has a front region, a central region and a rear region obtained by trisecting the main body in the front-rear direction,

the post-treatment member is provided in a region overlapping at least the central region.

16. The absorbent article according to any one of claims 1 to 15, wherein,

a plurality of bending base point portions extending in the width direction are provided on the outer side in the front-rear direction than the aftertreatment member.

17. The absorbent article of claim 16,

the base folding point portion includes a folding line for folding so that the skin surface side of the absorbent article faces each other.

18. The absorbent article of claim 16 or 17,

the base folding point portion includes an end edge compression portion formed by compressing the front surface sheet and the back surface sheet at a position on the outer side in the front-rear direction than the outer end edge in the front-rear direction of the absorbent core,

the distance in the front-rear direction between the outer end edge in the front-rear direction of the absorbent core and the end edge compressed portion is longer than the thickness of the absorbent core.

19. The absorbent article according to any one of claims 1 to 18,

in the absorbent article, a plurality of folding lines for folding the absorbent article in the front-rear direction are provided at intervals in the front-rear direction,

the fold line has a 1 st fold line closest to an end edge of one side of the absorbent article in the front-rear direction and a 2 nd fold line closest to an end edge of the other side of the absorbent article in the front-rear direction,

the post-processing member is disposed in a region between the 1 st fold line and the 2 nd fold line.

20. The absorbent article of claim 19,

the post-processing member is not disposed across at least one of the 1 st fold line and the 2 nd fold line.

21. The absorbent article according to any one of claims 1 to 20, wherein,

the hook member has a thickness greater than a thickness of the surface sheet.

22. The absorbent article according to any one of claims 1 to 20, wherein,

the hook member has a thickness thinner than that of the surface sheet.

23. The absorbent article according to any one of claims 1 to 22, wherein,

the aftertreatment member has a base material sheet joined to the non-skin surface of the main body,

the hook member protrudes from the base sheet toward the non-skin surface side, and is disposed in a region overlapping a joining region where the base sheet and the main body portion are joined in a thickness direction.

24. The absorbent article according to any one of claims 1 to 23, wherein,

a color difference Δ E between the non-skin surface of the main body portion and the post-treatment member is 3.0 or more when viewed from a non-skin surface side of the absorbent article.

25. The absorbent article according to any one of claims 1 to 24, wherein,

the bending rigidity of the post-treatment member is lower than the bending rigidity of a region in which the front sheet, the back sheet, and the absorbent core are superposed.

26. The absorbent article according to any one of claims 1 to 25, wherein,

the main body portion has a pair of wings protruding outward in the width direction,

at least a part of the hook member overlaps with an area sandwiched between the pair of wings in a plan view in a state where the pair of wings are folded toward the skin surface side of the main body.

27. The absorbent article of claim 26,

the main body portion has a pair of hip flaps projecting outward in the width direction at positions rearward of the flaps,

a flap adhesive section for joining the flap to the wearing article is provided on the non-skin surface of the flap,

a flap adhesive part for joining the hip flap to the wearing article is provided on a non-skin surface of the hip flap,

at least a part of the flap adhesive part is disposed in a front-rear region extending in the front-rear direction from the flap adhesive part in a state where the flap and the hip flap are folded toward the skin surface side of the main body part.

28. The absorbent article of claim 26 or 27, wherein,

the main body portion has a pair of hip flaps projecting outward in the width direction at positions rearward of the flaps,

a flap adhesive section for joining the flap to the wearing article is provided on the non-skin surface of the flap,

a flap adhesive part for joining the hip flap to the wearing article is provided on a non-skin surface of the hip flap,

at least a part of the post-treatment member is disposed at a position forward of the front end edge of the flap bonding portion and rearward of the front end edge of the flap bonding portion.

Technical Field

The present invention relates to an absorbent article provided with a post-treatment member used at the time of disposal.

Background

Patent document 1 discloses an absorbent article such as a disposable diaper or a sanitary napkin provided with a post-treatment member used at the time of disposal. The post-treatment member of patent document 1 is a tape member, and has a tape base material and a main body adhesion portion provided on the tape base material. The tape base material includes a base portion adhered to the back sheet and an extensible portion provided continuously to the base portion. The body bonding portion is provided at the extension portion. When the absorbent article is discarded, the user stretches the extension portion of the belt base material and fixes the absorbent article in a rolled state by the main body adhesive portion.

Disclosure of Invention

Problems to be solved by the invention

The tape base material described in patent document 1 is folded before use, and the main body bonding portion is disposed between the folded tape base materials. The main body adhesive section is provided on the surface facing the back sheet in the extended state, and is joined to the back sheet at the time of disposal, and is fixed in a state where the absorbent article is rolled up.

There is a demand for an absorbent article that can be rolled up compactly at the time of disposal and that can maintain the rolled state, such as the absorbent article of patent document 1. However, absorbent articles having a disposable belt member are not sufficiently widespread, and some users cannot smoothly perform an operation of extending the belt member or cannot join the main body bonding portion of the belt member to a desired position, and there is room for improvement in operability. Therefore, an absorbent article that can be cleanly discarded in a rolled state by the post-treatment member is desired.

An absorbent article according to one aspect includes: a front-back direction; a width direction orthogonal to the front-rear direction; a main body section having a front sheet, a back sheet, and an absorbent core; and a post-treatment member having a hook member protruding toward a non-skin surface side, wherein the hook member is configured to be capable of being fixed to the topsheet in a state in which the absorbent article is folded so that a skin surface side of the absorbent article is positioned inside, and the absorbent article has a cover sheet disposed on the non-skin surface side of the post-treatment member and covering the hook member.

Drawings

Fig. 1 is a plan view of the absorbent article of embodiment 1 in a developed state, as viewed from the skin surface side.

Fig. 2 is a plan view of the absorbent article of embodiment 1 in a developed state, as viewed from the non-skin surface side.

Fig. 3 is a sectional view taken along line a-a shown in fig. 1.

Fig. 4 is an enlarged view of a portion B shown in fig. 3.

Fig. 5 is a view showing the absorbent article in a packaged state.

Fig. 6 is a view for explaining a state in which the absorbent article is rolled up in the front-rear direction at the time of disposal.

Fig. 7 is a plan view of the absorbent article of embodiment 2 in a developed state, as viewed from the non-skin surface side.

Fig. 8 is a plan view of the absorbent article according to embodiment 2, as viewed from the skin surface side, with the wings and hip flaps folded.

Fig. 9 is a view for explaining a folded configuration of the absorbent article.

Fig. 10 is a sectional view schematically showing a member for aftertreatment according to embodiments 3 and 4.

Detailed Description

(1) Brief description of the embodiments

At least the following matters will be apparent from the description of the present specification and the accompanying drawings.

An absorbent article according to one aspect includes: a front-back direction; a width direction orthogonal to the front-rear direction; a main body section having a front sheet, a back sheet, and an absorbent core; and a post-treatment member having a hook member protruding toward a non-skin surface side, wherein the hook member is configured to be capable of being fixed to the topsheet in a state in which the absorbent article is folded so that a skin surface side of the absorbent article is positioned inside, and the absorbent article has a cover sheet disposed on the non-skin surface side of the post-treatment member and covering the hook member. According to this aspect, when the main body portion is to be rolled up at the time of disposal, the skin surface side to which excrement is attached is usually rolled up so as to be inward. The surface sheet is disposed so as to cover the non-skin surface of the main body portion in a state folded so that the skin surface side of the main body portion is positioned inside, and the hook member positioned on the non-skin surface side of the main body portion is fixed to the surface sheet, so that the state in which the main body portion is rolled up can be maintained. In addition, the hook member can be covered with the covering sheet in a state before disposal, and accidental hooking of the hook member can be suppressed. In this way, the absorbent article can be discarded cleanly while maintaining the rolled-up state by the post-treatment member at the time of disposal.

According to a preferred embodiment, the following is preferred: the cover sheet is at least one of an independent packaging sheet for independently packaging the absorbent article and a release sheet for covering an adhesive section provided on the non-skin surface of the main body section. According to the present invention, the hook member can be covered with at least either one of the independent packaging sheet and the release sheet. By configuring the cover sheet using the structure used in the conventional absorbent article, the conventional manufacturing apparatus can be used. In addition, according to the absorbent article, the increase in the number of components can be suppressed.

According to a preferred embodiment, the following is preferred: the cover sheet includes both the individual package sheet and the release sheet. According to the present invention, since the release sheet is disposed between the hook member and the individual package sheet, it is possible to suppress a problem that the individual package sheet is accidentally broken by the hook member.

According to a preferred embodiment, the following is preferred: the cover sheet has an individual packaging sheet for individually packaging the absorbent article, and in a state in which the absorbent article is individually packaged in the individual packaging sheet, a color difference Δ E between an adjacent region adjacent to the post-treatment member and a region in which the post-treatment member is arranged is preferably 3.0 or more. According to the present invention, in a state in which the sheet is individually packaged by the individual packaging sheet, the user can easily recognize the presence of the post-treatment member from the outside of the individual packaging sheet. The user can use the absorbent article by recognizing the post-processing member and opening the individual packaging sheet.

According to a preferred embodiment, the following is preferred: the post-treatment member and a main body adhesive section for joining the main body section to a wearing article are provided on a non-skin surface side of the main body section in which a core placement region of the absorbent core is disposed in a plan view, and the main body adhesive section is disposed in a width region extending in the width direction from the post-treatment member. According to the present aspect, the aftertreatment member can be joined to the topsheet in the core disposition region where the absorbent core is disposed. The absorbent core has high rigidity in the structural member of the absorbent article, and the rolled-up state of the absorbent core having high rigidity can be maintained, so that the absorbent article is difficult to unroll and is easy to maintain in the rolled-up state. In addition, the main body adhesive section that bonds the absorbent article to the wearing article during use is also secondarily bonded to the topsheet. Thereby, the aftertreatment member can be joined to the front sheet, and the main body bonding portion can also be joined to the front sheet. The absorbent article can be discarded cleanly by the post-treatment member while maintaining the state in which the main body is rolled up at the time of disposal.

According to a preferred embodiment, the following is preferred: in the width region, the main body bonding portion and the aftertreatment member are arranged with a space in the width direction. According to the present invention, the main body bonding portion and the post-treatment member are less likely to interfere with each other, and a problem such as accidental joining of the main body bonding portion and the post-treatment member in a state before disposal can be suppressed.

According to a preferred embodiment, the following is preferred: the distance in the width direction between the main body adhesive part and the post-treatment member is longer than the distance in the thickness direction between the surface of the main body adhesive part on the non-skin surface side and the tip of the hook member. The hook member may protrude toward the non-skin surface side and may bend or fall when a force is applied. The distance separating the post-treatment member and the main body adhesive portion is greater than the length of the distal end of the hook member protruding toward the non-skin surface side with respect to the main body adhesive portion, and therefore, when the hook member is laid down, the hook member and the main body adhesive portion are less likely to come into contact with each other. This can prevent a problem such as accidental joining of the main body bonding portion and the post-treatment member in a state before disposal.

According to a preferred embodiment, the following is preferred: the distance in the thickness direction between the non-skin surface of the main body portion and the tip of the hook member is longer than the distance in the thickness direction between the non-skin surface of the main body portion and the non-skin surface of the main body adhesive portion. According to the present invention, the hook member protrudes to the non-skin surface side than the body adhesive portion, and the hook member is more easily joined to the topsheet when the body portion is rolled up so that the skin surface side of the body portion is located inside. This enables the rolled-up state to be maintained by the post-treatment member at the time of disposal, and the absorbent article to be disposed of cleanly.

According to a preferred embodiment, the following is preferred: the length of the main body bonding portion in the width direction is longer than the length of the aftertreatment member in the width direction. The main body adhesive section has a function of joining the main body section to the wearing article during use, and also has a function of joining the main body section to the front surface sheet in an auxiliary manner during disposal. In general, the bending rigidity of the main body bonding portion is lower than that of the post-treatment member, and even if the length of the main body bonding portion is increased, the uncomfortable feeling during wearing is unlikely to occur. By increasing the length of the main body bonding portion in the width direction, it is possible to suppress a feeling of discomfort and to more easily secure a bonding force with respect to the surface sheet at the time of disposal.

According to a preferred embodiment, the following is preferred: the length of the body bonding portion in the front-rear direction is longer than the length of the aftertreatment member in the front-rear direction. By increasing the length of the main body adhesion portion in the front-rear direction, it is possible to suppress a feeling of discomfort and to more easily secure the joining force with respect to the surface sheet at the time of disposal.

According to a preferred embodiment, the following is preferred: the area of the post-treatment member is less than 20% of the area of the entire main body. According to the present aspect, since the area of the post-treatment member having the hook member is smaller than the area of the entire main body portion, the stiffness of the absorbent article can be suppressed from being increased by the post-treatment member, and the uncomfortable feeling during wearing can be suppressed.

According to a preferred embodiment, the following is preferred: the length of the aftertreatment member in the width direction is 1/3 or less of the length of the absorbent core in the width direction. According to the present invention, the length of the post-treatment member in the width direction is 1/3 the length of the main body in the width direction, and the post-treatment member is narrow in width with respect to the main body. It is easy to secure an area where the main body bonding portion is arranged, such as outside in the width direction of the post-treatment member. Further, since the width of the post-treatment member is narrow, the width of the area where the surface sheet and the hook member are in contact with each other is narrow, and the hook member temporarily joined to the surface sheet is easily peeled off from the surface sheet. Therefore, the main body can be rewound after being rewound in an unintended form. Further, the post-processing member is narrow in width, and therefore, when the main body portion is folded in the width direction with the outer edge of the post-processing member as a base point at the time of disposal, the main body portion is easily folded compactly. This makes it possible to dispose of the absorbent article in a compactly folded state.

According to a preferred embodiment, the following is preferred: the post-treatment member is disposed across the center of the main body in the width direction. According to the present invention, the center of the main body in the width direction can be joined by the post-processing member. Generally, the length of the main body in the front-rear direction is longest with respect to the center of the main body in the width direction. By engaging the portion of the main body portion having the longest length in the front-rear direction with the hook member, the entire region of the main body portion in the front-rear direction can be maintained in a rolled state. In addition, in general, when the main body portion is rolled up at the time of disposal, the main body portion is rolled up with the center in the width direction thereof as a base point. In this case, since the post-treatment member is present at the site serving as the base point, the post-treatment member and the surface sheet can be unintentionally pressed in the direction toward each other during the operation of rolling up the main body, and the hook member can be joined to the surface sheet.

According to a preferred embodiment, the following is preferred: the post-treatment members are arranged in pairs with the center of the main body in the width direction therebetween. According to the present invention, the pair of aftertreatment members that sandwich the center of the main body in the width direction can maintain the rolled state over the entire width of the main body. The length in the width direction that can be joined by the aftertreatment member can be ensured, and therefore, a main body portion having a long length in the width direction is particularly preferable.

According to a preferred embodiment, the following is preferred: the absorbent article has a front region, a central region, and a rear region, which are obtained by trisecting the main body in the front-rear direction, and the post-treatment member is provided in a region overlapping at least the central region. The central region is located between the start of rolling and the end of rolling, and is easily covered with the surface sheet on the rolling end side regardless of whether the central region is rolled up from the front region or rolled up from the rear region. According to this aspect, the aftertreatment member can be joined to the top sheet in the region overlapping the central region, the rolled state can be maintained during disposal, and the absorbent article can be disposed of cleanly with the aftertreatment member.

According to a preferred embodiment, the following is preferred: a plurality of bending base point portions extending in the width direction are provided on the outer side in the front-rear direction than the aftertreatment member. According to this aspect, when the main body is rolled up in the front-rear direction, the main body can be rolled up with the bending base point portion as a base point, and the user can easily perform the rolling-up operation. Further, when starting to roll up from the region on the front-rear direction outer side of the aftertreatment member, the entire main body portion can be rolled up compactly by rolling up with the bending start point portion as a start point.

According to a preferred embodiment, the following is preferred: the base folding point portion includes a folding line for folding so that the skin surface side of the absorbent article faces each other. According to the present invention, the body portion can be easily rolled up with the skin surface side being inside, because the body portion can be easily deformed to approach the skin surface side by the habitual bending of the folding line.

According to a preferred embodiment, the following is preferred: the base folding point portion includes an end edge compressed portion formed by compressing the front surface sheet and the back surface sheet at a position on the outer side in the front-rear direction than the outer end edge in the front-rear direction of the absorbent core, and a distance in the front-rear direction between the outer end edge in the front-rear direction of the absorbent core and the end edge compressed portion is longer than a thickness of the absorbent core. According to the present invention, the rigidity between the end edge compressed portion and the outer end edge of the absorbent core is lower than that between the end edge compressed portion and the absorbent core, and the end edge compressed portion and the absorbent core are easily deformed flexibly. When the region between the end edge compressed portion and the outer end edge of the absorbent core is shorter than the thickness of the absorbent core, the region between the end edge compressed portion and the outer end edge of the absorbent core is less likely to be flexibly deformed by the thickness of the absorbent core when the roll-up is started from the end edge compressed portion side, and it is less likely to form a base point for the start of the roll-up. However, since the distance between the end edge compressed portion and the outer end edge of the absorbent core is longer than the thickness of the absorbent core, when the roll-up is started from the end edge compressed portion side, the region between the end edge compressed portion and the outer end edge of the absorbent core is flexibly deformed, and a base point for the start of the roll-up is easily formed. Further, when the end edge compressed portion is rolled up, the region between the end edge compressed portion and the outer end edge of the absorbent core is easily deformed flexibly without being affected by the rigidity of the absorbent core, and is easily deformed to form a smooth outer shape by the difference in thickness from the core arrangement region, and the main body portion is easily rolled up more compactly.

According to a preferred embodiment, the following is preferred: in the absorbent article, a plurality of folding lines for folding the absorbent article in the front-rear direction are provided at intervals in the front-rear direction, the folding lines include a 1 st folding line closest to an end edge on one side of the absorbent article in the front-rear direction and a 2 nd folding line closest to an end edge on the other side of the absorbent article in the front-rear direction, and the aftertreatment member is disposed in a region between the 1 st folding line and the 2 nd folding line. According to the present invention, the region between the 1 st fold line and the 2 nd fold line is located between the start of rolling and the end of rolling, and is easily covered by the surface sheet on the rolled-up end side regardless of whether the sheet is rolled up from the front region or rolled up from the rear region. In this way, by joining the post-treatment member to the top sheet at the time of disposal, the rolled-up state can be maintained, and the absorbent article can be disposed of cleanly with the post-treatment member.

According to a preferred embodiment, the following is preferred: the post-processing member is not disposed across at least one of the 1 st fold line and the 2 nd fold line. According to this aspect, the main body portion is formed with a habitual bend based on the fold line. When the main body is rolled up with the skin surface side on the inside, the front area and the rear area, which are demarcated by the fold line, are deformed toward the skin surface side (inside) with the fold line as a starting point. If the deformation is inward at the fold line, the post-processing member and the surface sheet may be separated from each other, and the hook member and the surface sheet may be difficult to be joined, or the temporarily joined hook member may be detached. By not crossing the folding line, it is possible to suppress a situation in which the engaged state of the hook member is accidentally dropped due to habitual bending.

According to a preferred embodiment, the following is preferred: the hook member has a thickness greater than a thickness of the surface sheet. According to the present invention, when the hook member is pressed against the surface sheet, the distal end of the hook member penetrates the surface sheet, and the hook member is easily hooked on the surface sheet. As a result, the hook member is joined to the surface sheet, the rolled-up state is easily maintained by the hook member, and the sheet is cleanly discarded by the post-treatment member.

According to a preferred embodiment, the following is preferred: the hook member has a thickness thinner than that of the surface sheet. According to the present invention, when the hook member is pressed against the surface sheet, the hook member easily enters the surface sheet, and the tip of the hook member easily hooks into the fibers of the surface sheet. As a result, the hook member is joined to the surface sheet, the rolled-up state is easily maintained by the hook member, and the sheet is cleanly discarded by the post-treatment member.

According to a preferred embodiment, the following is preferred: the post-treatment member has a base sheet joined to a non-skin surface of the main body portion, and the hook member protrudes from the base sheet toward the non-skin surface and is disposed in a region overlapping a joining region joining the base sheet and the main body portion in a thickness direction. According to the present invention, the hook member provided in the engagement region is less likely to float with respect to the main body, and the position thereof is less likely to shift. Thus, the hook member is easily hooked on the front sheet in the process of rolling up the main body portion at the time of disposal. In addition, since the position of the hook member is difficult to be displaced, the hook member is easily maintained in the engaged state once engaged with the surface sheet.

According to a preferred embodiment, the following is preferred: a color difference Δ E between the non-skin surface of the main body portion and the post-treatment member is 3.0 or more when viewed from a non-skin surface side of the absorbent article. According to the present aspect, since the color difference Δ E between the non-skin surface of the main body and the post-treatment member is 3.0 or more, the user can easily recognize the main body and the post-treatment member as separate bodies, and easily recognize the presence of the post-treatment member. The user can easily join the post-treatment member to the surface sheet by recognizing the post-treatment member and rolling up the main body.

According to a preferred embodiment, the following is preferred: the bending rigidity of the post-treatment member is lower than the bending rigidity of a region in which the front sheet, the back sheet, and the absorbent core are superposed. When the absorbent article is used, the post-treatment member is disposed on the non-skin surface side of the main body, and the post-treatment member indirectly contacts the skin. In this case, since the bending rigidity of the aftertreatment member is low, the feeling of discomfort to the wearer can be suppressed.

According to a preferred embodiment, the following is preferred: the main body portion has a pair of wings protruding outward in the width direction, and at least a part of the hook member overlaps with an area sandwiched between the pair of wings in a plan view in a state where the pair of wings are folded toward a skin surface side of the main body portion. Some users roll up the main body portion in a state where the wings are folded toward the skin surface side at the time of disposal. At this time, even if the aftertreatment member abuts on the portion of the topsheet covered with the flap, the hook member is not joined to the topsheet. However, since at least a part of the hook member is disposed in the region sandwiched between the pair of flaps in a plan view, the surface sheet is exposed in the region between the folded flaps, and the aftertreatment member can be joined to the surface sheet in this region.

According to a preferred embodiment, the following is preferred: the main body portion has a pair of hip flaps projecting outward in the width direction at positions rearward of the flaps, a flap adhesive portion for joining the flaps to the wearing article is provided on a non-skin surface of the flaps, a flap adhesive portion for joining the hip flaps to the wearing article is provided on a non-skin surface of the hip flaps, and at least a part of the flap adhesive portion is disposed in a front-rear region extending in the front-rear direction from the flap adhesive portion in a state where the flaps and the hip flaps are folded toward a skin surface side of the main body portion. Some users roll up the main body portion while folding the wings and hip flaps toward the skin surface side at the time of disposal. At this time, even if the aftertreatment member abuts on the region of the topsheet covered with the wings and hip flaps, the hook member is not joined to the topsheet. The flap adhesive part and the flap adhesive part are overlapped in the front-rear direction, so that the flap adhesive part and the flap adhesive part are joined, and the area of the surface sheet covered by the flap and the hip flap can be maintained in a rolled-up state.

According to a preferred embodiment, the following is preferred: the main body portion has a pair of hip flaps protruding outward in the width direction at positions rearward of the flaps, a flap adhesive portion for joining the flaps to the wearing article is provided on a non-skin surface of the flaps, a flap adhesive portion for joining the hip flaps to the wearing article is provided on a non-skin surface of the hip flaps, and at least a part of the aftertreatment member is disposed forward of a front end edge of the flap adhesive portion and rearward of a front end edge of the flap adhesive portion. According to the present invention, the aftertreatment member is disposed on the front side of the hip flap. The hip flaps are positioned relatively on the front side of the absorbent article, and the flaps are positioned in the center of the absorbent article. At least a part of the finishing member is disposed at a position forward of the front end edge of the flap bonding portion and rearward of the front end edge of the flap bonding portion, so that the finishing member is easily covered with the surface sheet on the rolled-up end side in both the state of being rolled up from the front region and the state of being rolled up from the rear region. In this way, by joining the post-treatment member to the top sheet at the time of disposal, the rolled-up state can be maintained, and the absorbent article can be disposed of cleanly with the post-treatment member.

(2) Absorbent article according to embodiment 1

Hereinafter, an absorbent article according to embodiment 1 will be described with reference to the drawings. The absorbent article may be an absorbent article such as a sanitary napkin, a panty liner, a breast pad, an adult incontinence pad, a disposable diaper, a fecal pad, or a sweat-absorbing sheet. In particular, the absorbent article may be used by being attached to the inside of a wearing article such as underwear of a user. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, the drawings are schematic, and it should be noted that the scale of each dimension and the like may be different from those in reality. Therefore, specific dimensions and the like should be determined with reference to the following description. In addition, the drawings may include portions having different dimensional relationships and ratios from each other.

Fig. 1 is a plan view of the absorbent article of embodiment 1 as viewed from the skin surface side. Fig. 2 is a plan view of the absorbent article of embodiment 1, viewed from the non-skin surface side. Fig. 3 is a sectional view taken along line a-a shown in fig. 1. Here, the "skin surface side" corresponds to a side facing the skin of the wearer during use. The "non-skin-side" corresponds to the side facing the side opposite to the skin of the wearer during use. The absorbent article 1 has a front-back direction L and a width direction W. The front-back direction L is a direction extending from the front side (ventral side) to the back side (dorsal side) of the wearer or a direction extending from the back side to the front side of the wearer. The width direction W is a direction orthogonal to the front-rear direction L.

The absorbent article 1 preferably includes a main body 20, a post-treatment member 30, and a cover sheet 40. The main body portion 20 includes a front surface sheet 21 facing the skin of the wearer, a back surface sheet 22 facing the side opposite to the skin of the wearer, and an absorbent core 23 between the front surface sheet 21 and the back surface sheet 22. The topsheet 21 is disposed toward the skin of the wearer during use. The top sheet 21 is preferably made of a nonwoven fabric or woven fabric having fibers. The front sheet 21 may be configured to be engageable with a hook member 31 of a post-treatment member 30 described later. The surface sheet may be formed of a woven or nonwoven fabric having fibers, and the fibers may be configured to be hooked with the hook members, or the surface sheet may be formed with irregularities on the skin surface, and the distal ends of the hook members may be configured to be more easily hooked by the irregularities. The back sheet 22 faces the side opposite the wearer's skin during use. The top sheet 21 is preferably composed of a liquid-permeable sheet. The back sheet 22 preferably includes a liquid impermeable sheet.

The absorbent core 23 extends in the front-rear direction L of the absorbent article 1. The absorbent core 23 has an absorbent material capable of absorbing moisture. The absorbent core 23 is preferably covered by a core wrap, not shown. The core wrap may be made of, for example, tissue paper. In the present specification, the term "along the front-rear direction L" refers to a direction having an angle of less than 45 ° with respect to the front-rear direction L, and the term "along the width direction W" refers to a direction having an angle of less than 45 ° with respect to the width direction W.

The absorbent article 1 preferably has a front region S1, a central region S2, and a rear region S3, which are obtained by trisecting the main body portion 20 in the front-rear direction. The front region S1, the center region S2, and the rear region S3 are regions obtained by dividing the main body portion 20 by 3 in the front-rear direction L at a position where the length of the main body portion 20 in the front-rear direction L is longest (in the present embodiment, the center 20CW in the width direction of the main body portion). The regions are shown in fig. 1 and 2. The absorbent article 1 has a core placement region R23 in which the absorbent core 23 is placed in a plan view. The core placement region R23 is a region where the absorbent core 23 is placed in a plan view such as in fig. 1, and is a region marked with diagonal lines in fig. 1.

The non-skin-surface-side T2 of the main body portion 20 in the core arrangement region R23 is provided with the adhesive section 50 for joining the main body portion 20 to the wearing article, and the aftertreatment member 30. The non-skin surface of the main body portion 20 of the present embodiment is constituted by the back sheet 22, and the adhesive portion 50 and the aftertreatment member 30 are disposed on the non-skin surface T2 of the back sheet 22. The post-treatment member 30 may be rectangular in plan view as shown in fig. 2, may be circular such as elliptical, may be provided in a plurality of dot shapes, or may be provided in a plurality of linear shapes. In the form in which the corners of the aftertreatment member 30 are curved, such as an oval shape, the discomfort of the aftertreatment member 30 when it hits the user can be reduced.

The aftertreatment member 30 has a hook member 31 protruding toward the non-skin surface side T2. The hook member 31 is configured to be attachable to the top sheet 21 in a state where the body portion 20 is bent so that the skin surface side T1 of the body portion 20 is on the inside, for example, when the absorbent article is discarded. The form of the absorbent article 1 when it is discarded will be described in detail later. The hook member 31 may be formed by a portion of the back sheet 22 that partially protrudes toward the non-skin-contact surface side T2, or may be formed by a member that is separate from the back sheet 22. Fig. 4 is a sectional view of a portion B of fig. 3. As shown in fig. 4, the hook member 31 of the present embodiment is formed of a member separate from the back sheet 22, and projects toward the non-skin surface side T2 from the base sheet 35 joined to the non-skin surface of the back sheet 22. Preferably, the base sheet 35 and the hook member 31 are integrated. The hook member 31 preferably includes a shaft portion 311 protruding toward the non-skin surface side T2, and an umbrella portion 312 extending outward in the planar direction at the tip of the shaft portion 311 than the shaft portion 311. A plurality of the hook members 31 may be arranged at intervals in the front-rear direction L and the width direction W, or only 1 hook member may be arranged. The base sheet 35 is joined to the non-skin surface of the main body portion 20. The base sheet 35 of the present embodiment is joined to the back sheet 22 at the joining region. The bonding region is preferably provided over the entire range of the aftertreatment member 30.

The post-treatment member 30 is composed of a sheet-like base sheet 35 and a plurality of hook members 31 rising from the front surface (back surface) of the base sheet, and a post-treatment member having, for example, anchor-shaped or hook-shaped hook members 31 can be used. As the post-processing member, a known male member of a mechanical surface fastener can be used, and for example, male members such as "magitape (registered trademark)" (manufactured by Kuraray corporation), "QUICKLON (registered trademark)" (manufactured by YKK corporation), "magitfloat (japanese: マジクロス) (registered trademark)" (Kanebo ball touch (japanese: カネボウベルタッチ)) and the like can be used.

The adhesive part 50 is a region provided with an adhesive for joining the main body part 20 to the wearing article. The bonding portion 50 includes a main body bonding portion 51 disposed in the core disposition region R23. The body bonding portions 51 extend in the front-rear direction L and are arranged at intervals in the width direction W. The main body bonding portions 51 are preferably disposed on both sides of the aftertreatment member 30 in the width direction W. The main body bonding portion 51 may extend in the width direction W and be disposed at an interval in the front-rear direction L as in embodiment 2. The adhesive section 50 preferably has a function of bonding the body section 20 to the wearing article during use and a function of secondarily bonding the surface sheet 21 during disposal.

The cover sheet 40 is preferably disposed on the non-skin surface side T2 of the aftertreatment member 30 so as to cover the hook member 31. The cover sheet 40 covers the main body 20 before use, and is separated from the main body 20 during use. The cover sheet 40 is preferably at least one of an independent packaging sheet 41 for independently packaging the main body portion 20 and a release sheet 42 for covering the adhesive portion 50. By covering the hook members 31 with at least either one of the separate packaging sheet 41 and the release sheet 42, the hook members 31 can be protected while preventing the hook members 31 from being exposed to the outside before the absorbent article 1 is used. This can prevent the hook member 31 from being accidentally damaged or the hook member 31 from accidentally hitting the skin before use. The cover sheet 40 of the present embodiment is composed of both the independent packaging sheet 41 and the release sheet 42. As shown in fig. 3, the release sheet 42 is preferably disposed on the non-skin surface side T2 of the hook member 31 of the post-treatment member 30, and the individual package sheet 41 is preferably disposed on the non-skin surface side T2 of the release sheet 42. Since the release sheet 42 is disposed between the hook member 31 and the individual package sheet 41, it is possible to suppress a problem that the individual package sheet 41 is accidentally broken by the hook member 31.

The peel strength between the cover sheet 40 and the aftertreatment member 30 is lower than the peel strength between the aftertreatment member 30 and the non-skin surface of the main body portion 20. More specifically, in the individually wrapped state, the wrapping sheet 40 and the hook member 31 are in contact with each other, and the peel strength between the wrapping sheet 40 and the hook member 31 is preferably lower than the peel strength between the post-treatment member 30 and the back surface sheet 22. That is, when being unfolded from the individually packaged state, the cover sheet 40 may be peeled off from the hook members 31 without peeling the post-processing member 30 and the back surface sheet 22. With such a configuration, when the cover sheet 40 is opened from the individually packaged state, the cover sheet 40 can be separated from the main body portion 20 and the post-processing member 30 without peeling the post-processing member 30 from the main body portion 20.

In addition, the peel strength between the cover sheet 40 and the adhesive part 50 is higher than the peel strength between the cover sheet 40 and the post-treatment member 30. More specifically, in the individually wrapped state, the cover sheet 40 is preferably in contact with the body adhesive part 51, and the cover sheet 40 is preferably in contact with the hook member 31, and the peel strength between the cover sheet 40 and the body adhesive part 51 is preferably higher than the peel strength between the cover sheet 40 and the hook member 31. That is, the hook member 31 may be configured to be more easily peeled from the cover sheet 40 than the main body adhesive part 51 when unfolded from the individually packaged state. In the individually wrapped state, the cover sheet 40 can be prevented from being positionally displaced by the joining of the cover sheet 40 and the adhesive portion 50. Further, since the hook member 31 is easily peeled off from the cover sheet 40, when the cover sheet 40 is separated from the main body portion 20 and the post-treatment member 30, a trouble that the post-treatment member 30 is caught on the cover sheet 40 can be suppressed.

The peel strength between the cover sheet 40 and the post-treatment member 30 can be measured as follows. First, the absorbent article in the folded and packaged state is put in an unfolded state. The front side of the cover sheet and the front side of the main body were clamped to chucks, respectively, and the peel strength in the longitudinal direction was measured by an instron tester. In addition, when the cover sheet is a plurality of sheets, the chuck sandwiches a plurality of superposed positions. After evaluation was performed at a speed of 100mm/min, the result obtained by converting the bonded area to N/25mm was taken as the peel strength between the cover sheet 40 and the post-treatment member 30. In addition, the thickness of the film was set to 0N/25mm when it was not adhered but merely contacted.

In addition, the peel strength between the post-treatment member 30 and the main body portion 20 can be measured as follows. The absorbent article in the folded, packaged state is brought into an unfolded state. After the main body and the post-treatment member are peeled off from the cover sheet, the portion to which the hook member is attached is cut by a cutter. The main body (back sheet was minimally fixed) and the member for the post-processing section were each clamped on a chuck, and the peel strength in the longitudinal direction was measured by an instron tester. In addition, a portion to be sandwiched between chucks is formed by cold spraying or the like for a product in which the hook member is adhered to the end portion. However, in order to prevent the decrease in the adhesive strength due to cold spraying or the like, 1/3 or more is secured as a whole as an unaffected portion. After evaluation was performed at a speed of 100mm/min, the result of converting the bonded area to N/25mm was taken as the peel strength between the post-treatment member 30 and the main body portion 20.

The peel strength between the cover sheet 40 and the adhesive portion 50 can be measured as follows. The absorbent article in the folded, packaged state is brought into an unfolded state. The front side of the cover sheet and the front side of the main body were clamped to chucks, respectively, and the peel strength in the longitudinal direction was measured by an instron tester. In addition, when the cover sheet is a plurality of sheets, the chuck sandwiches a plurality of superposed positions. After evaluation at a speed of 100mm/min, the result obtained by converting the bonded area to N/25mm was taken as the peel strength between the cover sheet 40 and the adhesive part 50.

It is preferable that the folding line of the absorbent article 1 for folding the absorbent article 1 in the front-rear direction L is provided at intervals in the front-rear direction. The folding line extends in the width direction W, and preferably has a 1 st folding line FL1 and a 2 nd folding line FL 2. The 1 st folding line FL1 is closest to the end edge on one side in the front-rear direction L of the absorbent article 1, and the 2 nd folding line FL2 is closest to the end edge on the other side in the front-rear direction L of the absorbent article 1. In the example shown in fig. 1 and 2, the 1 st folding line FL1 is closest to the rear end edge of the absorbent article 1 among the plurality of folding lines, and the 2 nd folding line F2 is closest to the front end edge of the absorbent article 1 among the plurality of folding lines. In the modification, another folding line extending in the width direction W may be disposed between the 1 st folding line FL1 and the 2 nd folding line FL 2. The 1 st folding line FL1 and the 2 nd folding line FL2 are lines for folding the absorbent article 1 with the skin surface side T1 of the absorbent article 1 on the inside when the absorbent article is packaged (before use). The main body 20 and the cover sheet 40 of the absorbent article 1 are folded together, and the main body 20 is preferably individually wrapped with the individual wrapping sheet 41. The fold line can be determined according to the position of the habitual bending, and in a mode that the habitual bending of the main body portion 20 is difficult to determine, the position of the fold line of the main body portion 20 and the post-treatment member 30 is preferably determined based on the habitual bending of the cover sheet 40.

Fig. 5 is a view showing the absorbent article 1 in a packaged state in which the main body portion 20 is individually packaged by the individual packaging sheet 41. Fig. 5 (a) is a plan view of the absorbent article in a packaged state, and fig. 5 (b) is a cross-sectional view taken along the line C-C shown in fig. 5 (a). The main body portion 20 and the cover sheet 40 are folded together in a state where the main body portion 20 is disposed on the separate packaging sheet 41 and the release sheet 42. As an example of the folding method, in a state where the main body portion 20 is disposed on the individual package sheet 41 and the release sheet 42, it is preferable to fold the rear end edge side of the absorbent article 1 inward in the front-rear direction L with the 1 st folding line FL1 as a reference point, and then fold the front end edge side of the absorbent article 1 inward in the front-rear direction with the 2 nd folding line FL2 as a reference point. At this time, the skin surface sides T1 of the main body portion 20 are preferably folded so as to face each other. The tip end of the region folded with the 2 nd folding line FL2 as a base point (specifically, the front end edge of the individual package sheet 41) is fixed to the individual package sheet 41 folded with the 1 st folding line FL1 as a base point by the tape member 45. By folding in this manner, the main body portion 20 is individually wrapped with the individual wrapping sheet 41. In the modification, the belt member 45 may not be provided.

Preferably, the topsheet 21 and the aftertreatment member 30 do not contact each other in a state where the absorbent article 1 is folded. In the absorbent article 1 of the present embodiment, the front sheet 21 is not disposed so as to cover the non-skin surface side T2 of the aftertreatment member 30 in the folded state before use, and the aftertreatment member 30 and the front sheet 21 do not come into contact with each other and the hook members 31 are not accidentally joined to the front sheet 21 in the folded state before use. However, in a case where the folding line extending in the width direction W is 3 or more and the aftertreatment member 30 is disposed across the folding line in the front-rear direction L, the front surface sheet 21 may be disposed so as to cover the non-skin-surface-side T2 of the aftertreatment member 30 in a folded state such as a packaged state. In this aspect, it is preferable that a structural member constituting the absorbent article 1 is disposed between the hook member 31 and the top sheet 21. Preferably, the structural member is a cover sheet 40, for example. In the folded state, the structural member is disposed between the front sheet 21 and the hook member 31, so that the front sheet 21 and the hook member 31 do not abut against each other. This can prevent the hook member 31 from being accidentally joined to the front sheet 21 before use.

Next, an example of a disposal form of the absorbent article 1 will be described with reference to fig. 6. Since excrement adheres to the top sheet 21 after use, the user sometimes turns the skin surface side T1 of the main body portion 20 inside and discards it when discarding the absorbent article 1. At this time, as shown in fig. 6 (a), the main body portion 20 and the aftertreatment member 30 are rolled up in the front-rear direction L from the front end edge or the rear end edge of the main body portion 20. The non-skin-surface-side T2 of the portion of the main body portion 20 where the rolling-up starts abuts the front sheet 21, and the main body portion 20 is rolled up in the front-rear direction L. The hook member 31 protruding toward the non-skin surface side T2 is provided on the non-skin surface side T2 of the main body portion 20. When the main body portion 20 and the aftertreatment member 30 are further rolled up in the front-rear direction L from the state shown in fig. 6 (a), the hook member 31 comes into contact with the topsheet 21. The umbrella portion 312 of the hook member 31 is hooked on the fibers of the surface sheet 21, and the hook member 31 is joined to the surface sheet 21. The absorbent article 1 can be discarded in a clean state with the surface to which excrement adheres inside by the aftertreatment member 30. Since the hook members 31 are hooked between the fibers of the surface sheet 21 to achieve the joined state, the post-treatment member can be joined to the surface sheet even when the surface sheet 21 is wet due to the adhesion of body fluid such as menstrual blood and the joining force between the adhesive part 50 and the surface sheet 21 is difficult to obtain. In particular, since the adhesive part has a low bonding force after being bonded to underwear or the like and the top sheet is in a wet state, the top sheet and the adhesive part 50 are difficult to bond to each other, and thus the bonding can be performed by the aftertreatment member 30. In addition, the operation of joining the hook member 31 of the aftertreatment member 30 to the front surface sheet 21 can be performed during the process of rolling up the main body portion 20, and an additional operation such as pulling and joining the aftertreatment member 30 is not required. Therefore, even when the user discards without any particular awareness, the rolled-up state of the main body portion 20 can be maintained by the post-processing member 30.

In the state where the absorbent article 1 is rolled up, the main body adhesive part 51 also abuts against the topsheet 21. The body adhesive portion 51 has a function of bonding the body portion 20 to the wearing article during use, and has a certain adhesive force even after the body portion 20 is removed from the wearing article. The main body adhesive portion 51 is also secondarily bonded to the front surface sheet 21. This enables the aftertreatment member 30 to be joined to the front sheet 21, and the main body bonding part 51 to be joined to the front sheet 21. The post-treatment member 30 and the main body bonding portion 51 are preferably disposed in the core disposition region R23. The absorbent core 23 is higher in rigidity among the structural members of the absorbent article 1. By maintaining the absorbent core 23 having high rigidity in a rolled state, the main body portion 20 is difficult to be unrolled and the rolled state is easily maintained.

At least a part of the main body bonding portion 51 is preferably disposed in a width area RW extending in the width direction W from the post-processing member 30. The width area RW is an area extending in the width direction from the entire area of the post-processing member 30 in the front-rear direction L, and a plurality of width areas are provided in the form in which a plurality of post-processing members 30 are arranged. In fig. 2, the width area RW is indicated by oblique lines. By disposing the body bonding portion 51 in the width area RW, both the body bonding portion 51 and the post-processing member 30 are disposed on an arbitrary imaginary line extending in the width direction W. On this imaginary line, both the main body adhesive part 51 and the aftertreatment member 30 are joined to the front surface sheet 21, and the rolled state is more easily maintained. More preferably, the body bonding portion 51 and the hook member 31 are disposed on an arbitrary imaginary line extending in the width direction W.

As shown in fig. 4, in the width area RW, the main body bonding portion 51 and the post-processing member 30 are preferably arranged with a space in the width direction W. The main body adhesion part 51 and the post-treatment member 30 are less likely to interfere with each other, and defects such as accidental joining of the main body adhesion part 51 and the post-treatment member 30 before disposal can be suppressed. In the modification, the main body bonding portion 51 and the aftertreatment member 30 may be adjacent to each other in the width direction W. In this modification, the body bonding portion 51 and the hook member 31 are preferably arranged with a gap in the width direction W.

As shown in fig. 4, the distance D11 in the width direction W between the body adhering part 51 and the post-treatment member 30 is preferably longer than the distance D12 in the thickness direction T between the surface of the body adhering part 51 on the non-skin surface side T2 and the tip 31P of the hook member 31. The tip end 31P of the hook member 31 is the most protruding end edge of the hook member 31, and in the present embodiment, is the edge of the non-skin surface side T2 of the umbrella portion 312. The surface of the body adhering portion 51 on the non-skin surface side T2 is the surface of the body 20 that contacts the aftertreatment member 30, and in the present embodiment, is the non-skin surface of the back sheet 22. The distance D12 can also be calculated from (the thickness T30 of the aftertreatment member with respect to the non-skin-side surface of the main body portion 20 (the non-skin-side surface of the back sheet 22)) - (the thickness T51 of the main body adhesive portion 51 with respect to the non-skin-side surface of the main body portion 20 (the non-skin-side surface of the back sheet 22)). The hook member 31 may protrude toward the non-skin-surface side T2 and may bend or fall when a force is applied. The distance separating the post-treatment member 30 and the main body adhesive part 51 is greater than the length (D12) of the protrusion of the tip end 31P of the hook member 31 from the main body adhesive part 51 toward the non-skin surface side T2, so that the hook member 31 and the main body adhesive part 51 are less likely to come into contact when the hook member 31 is laid down. This can prevent troubles such as accidental joining of the main body bonding portion 51 and the aftertreatment member 30 before disposal. In the modification, the body bonding portion 51 may not be provided.

The distance T30 in the thickness direction T between the non-skin surface of the main body portion 20 and the distal end of the hook member 31 is preferably longer than the distance T51 in the thickness direction T between the non-skin surface of the main body portion 20 and the non-skin surface of the main body adhesive portion 51. The distance T30 in the thickness direction T between the non-skin surface of the main body portion 20 and the tip end of the hook member 31 is the thickness of the aftertreatment member 30, and specifically, is preferably 0.05mm to 1.0 mm. If the thickness is less than 0.05mm, it is difficult to sufficiently obtain the force for bonding the aftertreatment member 30 to the surface sheet 21. Further, if the length is longer than 1.0mm, the unpleasant feeling to the skin when the aftertreatment member 30 is in contact with the skin may be high. The distance T51 in the thickness direction T between the non-skin surface of the main body portion 20 and the non-skin surface of the main body adhesive portion 51 is the length in the thickness direction T of the main body adhesive portion 51, and is preferably 0.1mm or less. The hook member 31 protrudes to the non-skin-surface side T2 than the main body adhesive part 51, and when the main body part 20 and the aftertreatment member 30 are rolled up with the skin-surface side T1 of the main body part 20 on the inside, the hook member 31 is more easily joined to the topsheet 21. This allows the main body 20 to be discarded cleanly while maintaining the rolled-up state by the post-treatment member 30 at the time of disposal.

The length of the main body bonding portion 51 in the width direction W is preferably longer than the length of the post-treatment member 30 in the width direction W. In the embodiment in which the body bonding portions 51 are arranged in a plurality of rows at intervals in the width direction W as in the present embodiment, the length of the body bonding portions 51 in the width direction W is a sum of the lengths of the body bonding portions 51 in the width direction W. The main body adhesive part 51 has a function of joining the main body part 20 to the wearing article during use, and also has a function of joining the front sheet 21 to the front sheet 21 in an auxiliary manner during disposal. In general, the bending rigidity of the body bonding portion 51 is lower than that of the post-treatment member 30, and even if the length of the body bonding portion 51 is increased, a feeling of discomfort at the time of wearing is less likely to occur. By increasing the length of the main body adhesion portion 51 in the width direction W, it is possible to suppress a feeling of discomfort and to more easily secure the joining force with respect to the surface sheet 21 at the time of disposal. Similarly, the length of the main body bonding portion 51 in the front-rear direction L is preferably longer than the length of the aftertreatment member 30 in the front-rear direction L. In the embodiment in which the body bonding portions 51 are arranged in a plurality of rows at intervals in the front-rear direction L as in embodiment 2, the length of the body bonding portions 51 in the front-rear direction L is a sum of the lengths of the body bonding portions 51 in the front-rear direction L. By increasing the length of the main body adhesion portion 51 in the front-rear direction L, it is possible to suppress a feeling of discomfort and to more easily secure the joining force with respect to the surface sheet 21 at the time of disposal.

The aftertreatment member 30 may be provided in a size necessary for suppressing a feeling of discomfort when worn and securing a bonding force with respect to the topsheet 21. The length of the post-treatment member 30 in the front-rear direction L is preferably longer than the thickness of the absorbent core 23 and shorter than the length of the absorbent core in the front-rear direction L, and the length of the post-treatment member 30 in the front-rear direction L in the present embodiment is 80 mm. The length of the aftertreatment member 30 in the front-back direction L is longer than the thickness of the absorbent core, so that the aftertreatment member 30 and the topsheet 21 are prevented from making point contact when the main body 20 is rolled up, and the contact area between the aftertreatment member 30 and the topsheet 21 can be ensured. Further, the length of the aftertreatment member 30 in the front-rear direction L is shorter than the length of the absorbent core in the front-rear direction, so that the stiffness of the aftertreatment member 30 is suppressed from being transmitted to the skin surface of the main body, and the uncomfortable feeling can be reduced. The length of the post-treatment member 30 in the width direction W is preferably 1mm or more and is preferably the length of the absorbent core in the width direction W or less. The length of the post-treatment member 30 in the width direction W is 1mm or more, and the bonding strength to the surface sheet is easily secured. Further, since the length of the post-treatment member 30 in the width direction W is smaller than the length of the absorbent core in the width direction, the body bonding portion can be arranged in the width region, and the body can be stably joined to the wearing article. More preferably, the length of the post-treatment member 30 in the width direction is 5mm to 35mm, and the length of the post-treatment member 30 in the width direction W of the present embodiment is 15 mm. The post-treatment member can be stably produced, and the main body adhesive portion can be easily arranged also in the core arrangement region, and the main body portion can be stably joined to the wearing article. The area of the post-treatment member 30 is preferably less than 20% of the entire area of the main body 20. Since the area of the post-treatment member 30 having the hook member 31 is smaller than the area of the entire main body portion 20, the rigidity of the absorbent article 1 is suppressed from being increased by the post-treatment member 30, and the uncomfortable feeling during wearing can be suppressed.

The length of the post-treatment member 30 in the width direction W is preferably 1/3 or less of the length of the absorbent core 23 in the width direction W. In the aspect in which the length of the absorbent core 23 in the width direction W varies, the length of the post-treatment member 30 in the width direction W is preferably 1/3 with respect to the maximum length of the absorbent core 23 in the width direction W. The aftertreatment member 30 is narrow in width relative to the main body portion 20, and it is easy to secure an area where the main body bonding portion 51 is disposed, for example, outside in the width direction W of the aftertreatment member 30. In addition, since the width of the post-treatment member 30 is narrow, the width of the area where the surface sheet 21 and the hook member 31 are in contact with each other is narrow, and the hook member 31 temporarily joined to the surface sheet 21 is easily peeled off. Therefore, the main body 20 can be rewound after being rewound in an unintended form. Further, the post-processing member 30 is narrow in width, and therefore, when the main body portion 20 is folded in the width direction with the outer edge of the post-processing member 30 as a base point at the time of disposal, it is easy to fold compactly. This enables the main body 20 to be discarded in a compactly folded state.

The aftertreatment member 30 is preferably disposed across the center 20CW in the width direction W of the main body 20. The center 20CW in the width direction W of the main body portion 20 can be joined by the post-processing member 30. Generally, the length of the body portion 20 in the front-rear direction L is longest with respect to the center of the body portion 20 in the width direction W. By engaging the portion of the main body portion 20 having the longest length in the front-rear direction L with the hook member 31, the entire region of the main body portion 20 in the front-rear direction L can be maintained in a rolled state. In addition, when the main body portion 20 is rolled up at the time of disposal, the main body portion 20 is generally rolled up with the center 20CW in the width direction as a base point. At this time, since the post-treatment member 30 is present at a site serving as a base point, the post-treatment member 30 and the surface sheet 21 can be unintentionally pressed in a direction toward each other during the operation of rolling up the main body portion 20, and the hook member 31 can be joined to the surface sheet 21. In a modification, the aftertreatment members 30 may be arranged in pairs with the center of the main body 20 in the width direction W interposed therebetween. The pair of aftertreatment members 30 sandwiching the center 20CW in the width direction W of the main body 20 can maintain the rolled state over the entire width direction W of the main body 20. The length in the width direction W that can be joined by the aftertreatment member 30 can be ensured, and therefore, an absorbent article having a long length in the width direction W is particularly preferable.

The post-treatment member 30 is preferably provided at least in a region overlapping the central region S2. The central region S2 is located between the start of rolling and the end of rolling, and is easily covered by the surface sheet 21 on the end of rolling regardless of the state of rolling from the front region S1 or the state of rolling from the rear region S3. In the region overlapping the central region S2, the post-treatment member 30 and the top sheet 21 are joined together, so that the main body 20 can be kept rolled up during disposal, and the absorbent article 1 can be disposed of cleanly with the post-treatment member 30. The aftertreatment member 30 may be disposed across the center of the main body 20 in the front-rear direction.

It is preferable that a plurality of bending base point portions 80 extending in the width direction are provided on the outer side in the front-rear direction L than the aftertreatment member 30. The bending base point portion 80 serves as a base point when the main body portion 20 is bent in the front-rear direction L. The bending base point portion 80 makes it easy to bend the main body portion 20 by a difference in rigidity, a difference in thickness, a difference in weight per unit area, and the like. When the main body portion 20 is rolled up in the front-rear direction L, the main body portion can be rolled up with the bending base point portion 80 as a base point, and the user can easily perform the operation of rolling up. At this time, since the deformation base point when the main body portion 20 is rolled up extends in the width direction, the entire region in the width direction W of the main body portion 20 is easily rolled up in the front-rear direction L. Further, when starting to roll up from the region outside the aftertreatment member 30 in the front-rear direction L, the main body portion 20 can be rolled up compactly as a whole by rolling up with the bending base point portion 80 as a base point.

A plurality of bending base point portions 80 may be provided in at least either one of the front side region and the rear side region of the post-treatment member 30. Preferably, a plurality of bending base point portions 80 are provided in both the front side region and the rear side region of the post-processing member 30. The main body 20 can be easily rolled up as a whole in the front-rear direction L. In addition, in the structure in which a plurality of bending base point portions 80 are provided at intervals in the front-rear direction L, each of the bending base point portions functions as a bending base point portion 80. However, when the distance between the bending base point portions 80 in the front-rear direction L is 5mm or less, the bending base point portions function as the integrated deformation base points, and therefore, the plurality of bending base point portions provided at intervals of 5mm or less constitute 1 bending base point portion as a whole.

The bending base point portion 80 is preferably a compressed portion including at least one of the compressed surface sheet 21 and the absorbent core 23. More specifically, the front end edge and the rear end edge of the compression portion constitute bending base point portions 80. In the configuration in which the plurality of compression portions are arranged offset in the front-rear direction L, the front end edge and the rear end edge of each compression portion constitute the bending base point portion 80. The compressed portion constituting the bending origin 80 may be a portion obtained by compressing at least the absorbent core 23, or may be a portion obtained by compressing at least the surface sheet 21. In the main body portion 20 of the present embodiment, an end edge compressed portion 27 formed by compressing the front surface sheet 21 and the back surface sheet 22 is provided on the outer side in the front-rear direction L than the outer end edge in the front-rear direction L of the absorbent core 23. The edge compression portion 27 constitutes a bending base point portion 80. The compressed portion is higher in rigidity and thinner in thickness than a region where the compressed portion is not formed. The compression portion constitutes the bending base point portion 80, so that the main body portion 20 is easily rolled up compactly by the difference in thickness and the difference in rigidity. Preferably, the compressed portion is recessed from the skin surface side T1 toward the non-skin surface side T2. The user normally rolls up the main body portion 20 so that the skin surface side T1 to which excrement adheres is inside when disposing. Since the compressed portion is recessed from the skin surface side T1 toward the non-skin surface side T2, the compressed portion is easily deformed so that the skin surface side T1 approaches, and the main body portion 20 is easily rolled up so that the skin surface side T1 is located inward.

The bending base point portion 80 preferably includes a weight change portion per unit area. The basis weight change portion is a portion in which the basis weight of the absorbent material of the absorbent core 23 is different for regions adjacent in the front-rear direction L. Specifically, the front end edge and the rear end edge of the absorbent core 23 constitute a weight-per-unit-area changing portion. The front end edge and the rear end edge of the high basis weight portion also constitute a basis weight varying portion. The low basis weight portion differs depending on the length in the front-rear direction. When the length of the low basis weight portion in the front-rear direction is less than 20mm, the center of the low basis weight portion in the front-rear direction constitutes a basis weight varying portion. When the length of the low basis weight portion in the front-rear direction is 20mm or more, the front end edge and the rear end edge of the low basis weight portion constitute a basis weight changing portion. In addition, in the case where a plurality of low basis weight portions are provided separately in the front-rear direction and are connected, the low basis weight portions separated in the front-rear direction constitute the basis weight varying portions, respectively. The variable portion in basis weight configured in this way has a different basis weight of the absorbent material and a different thickness and rigidity of the absorbent core 23 with respect to the regions adjacent in the front-rear direction. The basis weight change portion constitutes a bending base point portion, and the absorbent article can be easily rolled up compactly by utilizing the difference in thickness and the difference in rigidity.

The bending origin portion 80 preferably includes a low basis weight portion provided in the absorbent core 23 as a basis weight changing portion. The low basis weight portion has higher rigidity and a thinner thickness than a region where the low basis weight portion is not formed. The low basis weight portion constitutes the bending base point portion 80, so that the main body portion 20 can be easily rolled up by utilizing the difference in thickness and the difference in rigidity. Preferably, the low basis weight portion as the basis weight varying portion is preferably provided along the width direction W. When viewed in a cross section along the front-rear direction L, the length of the low basis weight portion in the front-rear direction is preferably longer on the skin surface side than on the non-skin side. Since the length of the low basis weight portion in the front-rear direction on the skin surface side is longer than the length of the low basis weight portion in the front-rear direction on the non-skin surface side, the low basis weight portion is easily deformed so that the skin surface side T1 approaches, and the main body portion 20 is easily rolled up so that the skin surface side T1 is located inward.

The base folding point portion 80 preferably includes a 1 st folding line FL1 and a 2 nd folding line FL2 for folding so as to face the skin surface side T1 of the absorbent article 1. In the structure in which the folding line has a constant length in the front-rear direction L, the front end edge and the rear end edge of the 1 st folding line F1 and the front end edge and the rear end edge of the 2 nd folding line F2 constitute bending base point portions 80. The body section 20 is easily rolled up with the skin surface side being inside because the body section is easily deformed to approach the skin surface side by the habitual bending of the 1 st folding line FL1 and the 2 nd folding line FL 2. That is, the bending base point portion 80 is preferably constituted by at least one of a compression portion, a weight-per-unit-area changing portion, and a folding line. By providing the bending base point portion 80 in this manner, the user can easily roll up the absorbent article 1 in the front-rear direction and can easily discard the rolled-up absorbent article.

The shape of the base bending point 80 is not limited, and may be a point shape, a strip shape, an arc shape, or a polygonal shape. The bending base point portion 80 preferably has the 1 st bending base point portion and the 2 nd bending base point portion. The 1 st bending base point portion has a length in the width direction longer than a length in the front-rear direction of the 1 st bending base point portion. The length of the 2 nd base point of bending in the front-rear direction is longer than the length of the 2 nd base point of bending in the width direction W. The main body portion 20 is easily bent in the front-rear direction L from the 1 st bending origin point portion, and is also easily bent in the width direction W from the 2 nd bending origin point portion. It is preferable that the number of the 1 st origin bending portions is larger than the number of the 2 nd origin bending portions in the entire absorbent article. When the main body portion 20 is rolled up, it is more easily rolled up in the front-rear direction than in the width direction. This makes it easy to roll up the absorbent article more compactly in the front-rear direction, and to maintain the rolled state more easily.

It is preferable that the bending base point portion 80 is provided in a range of 3 or more from the outer end edge of the main body portion 20 in the front-rear direction to 1/3 of the length of the main body portion 20 in the front-rear direction. The circumferential length of the body 20 in the state of being rolled up in the front-rear direction L is generally 1/3 which is the length of the body 20 in the front-rear direction L. 1/3, which is the length of the body portion 20 in the front-rear direction L, is the region where the rolling starts or the region where the rolling ends. In this portion, 3 or more bending base point portions 80 are provided, so that the rolled state can be maintained more easily.

The distance D27 (see fig. 1) in the front-rear direction between the outer end edge in the front-rear direction of the absorbent core 23 and the end edge compressed portion 27 is preferably longer than the length T23 (see fig. 3) in the thickness direction of the absorbent core. The end edge compressed portion 27 and the outer end edge of the absorbent core 23 are less rigid than the end edge compressed portion 27 and the absorbent core 23 and are easily deformed flexibly. If the region between the end edge compressed portion 27 and the outer end edge of the absorbent core 23 is shorter than the length T23 in the thickness direction of the absorbent core 23, when the main body portion 20 is rolled up from the end edge compressed portion 27 side, the region between the end edge compressed portion 27 and the outer end edge of the absorbent core 23 is less likely to be flexibly deformed by the influence of the thickness of the absorbent core 23, and it is less likely to form a base point for starting rolling up. However, since the distance between the end edge compressed portion 27 and the outer end edge of the absorbent core 23 is longer than the thickness of the absorbent core 23, when starting to roll up from the end edge compressed portion 27 side, the region between the end edge compressed portion 27 and the outer end edge of the absorbent core 23 is flexibly deformed, and a base point for starting to roll up is easily formed. Further, when the end edge compression portion 27 side is turned up, the region between the end edge compression portion 27 and the outer end edge of the absorbent core 23 is easily deformed flexibly without being affected by the rigidity of the absorbent core 23, and is easily deformed to form a smooth outer shape by the thickness difference from the core arrangement region, and the main body portion 20 is easily turned up more compactly.

The post-processing member 30 is preferably disposed in a region between the 1 st folding line FL1 and the 2 nd folding line FL 2. At least a part of the post-treatment member 30 may be disposed between the 1 st folding line FL1 and the 2 nd folding line FL2, or the post-treatment member 30 may be disposed across the 1 st folding line FL1 and the 2 nd folding line FL 2. The region between the 1 st folding line FL1 and the 2 nd folding line FL2 is located between the start of rolling and the end of rolling, and is easily covered by the surface sheet 21 on the rolling end side regardless of the state of being rolled up from the front region S1 or the state of being rolled up from the rear region S3. Thus, by joining the post-treatment member 30 to the top sheet 21 at the time of disposal, the rolled state can be maintained, and the absorbent article can be disposed of cleanly with the post-treatment member 30.

It is preferable that the post-processing member 30 is not disposed across at least one of the 1 st folding line FL1 and the 2 nd folding line FL 2. The main body 20 is formed with a habitual bend based on a fold line. In a state of being rolled up with the skin surface side T1 being inside, the front area and the rear area, which are demarcated by the folding line, are deformed toward the skin surface side (inside) with the folding line as a base point. If the deformation is inward at the fold line, the aftertreatment member 30 and the surface sheet 21 may be separated, the hook member 31 and the surface sheet 21 may be hardly joined, or the temporarily joined hook member 31 may be detached. By not crossing the folding line, it is possible to suppress a situation in which the engaged state of the hook member 31 is accidentally dropped due to habitual bending. Further, by rolling up the main body 20 from the fold line side not spanned by the post-treatment member 30, the main body can be rolled up without receiving a repulsive force to return to a flat state by the post-treatment member 30, and can be rolled up easily with a further compact and weak force. Further, by disposing the post-treatment member 30 across the folding line covered by the surface sheet 21 when rolled up, the hook member 31 and the surface sheet 21 can be easily joined by the repulsive force generated by the post-treatment member 30.

As shown in fig. 4, the thickness T31 of the hook member 31 is preferably thicker than the thickness T21 of the surface sheet 21. The thickness T31 of the hook member 31 is a sum of the thickness of the shaft portion 311 and the thickness of the umbrella portion 312. When the hook member 31 is pressed against the surface sheet 21, the tip end of the hook member 31 penetrates the surface sheet 21, and the umbrella portion 312 of the hook member 31 is easily hooked on the surface sheet 21. As a result, the hook member 31 is joined to the surface sheet 21, and the hook member 31 maintains the rolled state, and is easily discarded cleanly by the post-treatment member 30.

In the modification, the thickness T31 of the hook member 31 may be smaller than the thickness T21 of the front sheet 21. When the hook member 31 is pressed against the surface sheet 21, the umbrella portion 312 of the hook member 31 remains inside the surface sheet 21, and the umbrella portion 312 of the hook member 31 is easily caught in the fibers of the surface sheet 21. As a result, the hook member 31 is joined to the surface sheet 21, and the hook member 31 maintains the rolled state, and is easily discarded cleanly by the post-treatment member 30.

The hook member 31 preferably protrudes from the base sheet 35 toward the non-skin surface side T2, and is disposed in a region where a joining region joining the base sheet 35 and the main body portion 20 overlaps in the thickness direction T. The bonding region of the present embodiment is provided in the entire region where the substrate sheet 35 is disposed. The hook member 31 provided in the joining region is less likely to float with respect to the back surface sheet 22, and is less likely to be displaced. This makes it easy for the hook member 31 to hook on the front sheet 21 during the process of rolling up the body 20 at the time of disposal. In addition, since the position of the hook member 31 is hard to be displaced, the hook member 31 is easily maintained in the engaged state once engaged with the surface sheet 21.

The color difference Δ E between the non-skin surface of the main body portion 20 and the aftertreatment member 30 is preferably 3.0 or more in a plan view from the non-skin surface side T2 of the absorbent article 1. Since the color difference Δ E between the non-skin surface of the main body 20 and the post-treatment member is 3.0 or more, the user can easily recognize the main body 20 and the post-treatment member 30 as separate bodies and the presence of the post-treatment member 30. In the case of a system in which the non-skin surface of the main body 20 has a plurality of colors, such as a system in which printing is applied to the back sheet 22, the color difference Δ E between the color of the region occupying the largest area and the aftertreatment member 30 is preferably 3.0 or more. The applicant has conducted various studies and, as a result, has found that it is easy for a user to recognize two regions as different regions when the color difference Δ E is 3.0 or more in general. The color difference Δ E between the non-skin surface of the main body 20 and the post-treatment member 30 is 3.0 or more, so that the user can easily recognize the main body 20 and the post-treatment member 30 as separate bodies and the presence of the post-treatment member 30. The user can recognize the post-treatment member 30 and wind up the main body 20, and easily join the post-treatment member 30 to the surface sheet 21.

In a state in which the sheet is independently wrapped with the independent wrapping sheet 41, the color difference Δ E between the adjacent region adjacent to the post-treatment member 30 and the region in which the post-treatment member 30 is disposed is preferably 3.0 or more. In a state of being packaged with the individual packaging sheet, the user can easily recognize the presence of the post-treatment member 30. The user can use the absorbent article by recognizing the post-treatment member 30 and opening the individual packaging sheet 41. In the configuration in which the separate packaging sheet 41 and the release sheet 42 are disposed on the non-skin surface side of the main body portion 20, the visibility of the post-treatment member through the separate packaging sheet 41 and the release sheet 42 may be made conspicuous to the adjacent regions.

The color difference Δ E between the main body 20 and the member for post-treatment 30 and the color difference Δ E between the adjacent region and the member for post-treatment 30 can be obtained by measuring the color of 2 points (two regions) to be measured using a commercially available color measuring instrument and comparing the values obtained by converting the values into numerical values based on the CIE1976(L × a × b) color space defined in JIS Z8729. Specifically, when the difference between L, a, and b values between 2 points to be measured is Δ L, Δ a, and Δ b, the difference is represented by the color difference Δ E [ (Δ L) ]²+(Δa*)²+(Δb*)²]^1/2And (4) obtaining.

The bending rigidity of the aftertreatment member 30 is preferably lower than the bending rigidity of the region where the front sheet 21, the back sheet 22, and the absorbent core 23 overlap. When the absorbent article 1 is used, the aftertreatment member 30 is disposed on the non-skin surface side T2 of the main body portion 20, and the aftertreatment member 30 indirectly contacts the skin. At this time, since the bending rigidity of the aftertreatment member 30 is low, the feeling of discomfort given to the wearer can be suppressed.

The bending rigidity of the post-treatment member 30, the back sheet 22, the absorbent core 23, the front sheet 21, and the back sheet22 and the absorbent core 23 can be measured by the taber method specified by the standard JIS P-8125. For example, first, a test piece having a width of 25mm and a length of 38mm is taken from a member (sheet) to be measured. Next, a thickness meter (e.g., 44 mm. phi.3 g/m manufactured by PEACOCK)²) The bending device of the Taber stiffness tester is rotated, the rotation of the bending device is stopped at a point where a 15-degree scale of the specimen bending device coincides with a pointer of the load vibrator, the load scale indicated by the pointer of the vibrator at that time is read, the load vibrator is immediately rotated in the opposite direction, the load scale is similarly read, and the average value of the load scales in the left and right directions is obtained, and an auxiliary weight is arbitrarily selected in a manner that the load scale is in a range of 15% to 85% of the maximum scale, whereby the bending stiffness (g.cm)) of the specimen is calculated from a numerical value of "the average value of the stiffness (g.cm) ═ × 10" of the load scale, and the maximum width of the specimen is calculated as a value of a weight equivalent to a weight of 10 × mm, and the average value of the bending stiffness (g.cm) is calculated as a length of the specimen in the bending direction, and the width of the specimen is measured as a width of the specimen, and the specimen is measured as a width of a specimen.

(3) Absorbent article according to embodiment 2

Next, the absorbent article of embodiment 2 will be described. Fig. 7 is a plan view of the absorbent article 1X according to embodiment 2, viewed from the non-skin surface side. Fig. 8 is a plan view of the absorbent article 1X seen from the skin surface side in a state where the wings and hip flaps are folded up to the skin surface side. Fig. 9 is a view for explaining a folding manner of the absorbent article. In fig. 7, the cover sheet 40 is not shown for convenience of explanation. In the following description of the modified examples, the same reference numerals are used for the same components as those of the above-described embodiment, and the description thereof is omitted.

The main body 20X of the absorbent article 1X preferably includes the flaps 25 and the hip flaps 26. The flap 25 projects outward in the width direction W and is folded back toward the non-skin surface side of the crotch portion of the worn article during use. The hip flap 26 is a portion that bulges in the width direction W at a position rearward of the flap 25. The hip flap 26 is disposed on the skin surface side of the wearing article when in use. The main body bonding portion 51X of the absorbent article 1X preferably extends in the width direction W and is disposed at an interval in the front-rear direction L. The main body bonding portions 51 are preferably disposed on both sides of the aftertreatment member 30 in the width direction W. A flap adhesive portion 52 for bonding the flap 25 to the wearing article is provided on the non-skin surface of the flap 25, and a flap adhesive portion 53 for bonding the hip flap 26 to the wearing article is provided on the non-skin surface of the hip flap 26.

As shown in fig. 8, the flaps 25 and hip flaps 26 are folded toward the skin surface side T1 of the main body portion 20 in a state where the absorbent article 1 is folded before use. In a state where the pair of wings 25 are folded toward the skin surface side T1 of the body portion 20, at least a part of the hook member 31 preferably overlaps with the region sandwiched by the pair of wings 25 in a plan view. The state in which the pair of wings 25 are folded toward the skin surface side T1 of the main body portion 20 is a state in which the wings 25 are folded from the root portions thereof. Some users roll up the main body portion 20 in a state where the flaps 25 are folded toward the skin surface side T1 at the time of disposal. At this time, even if the aftertreatment member 30 abuts on the portion of the topsheet 21 covered with the flap 25, the hook member 31 is not joined to the topsheet 21. However, since at least a part of the hook member 31 is disposed in the region sandwiched between the pair of flaps 25 in a plan view, the top sheet 21 is exposed in the region between the folded flaps 25, and the aftertreatment member 30 can be joined to the top sheet 21 in this region. Further, it is preferable that at least a part of the hook member 31 overlaps with the region sandwiched by the pair of hip flaps 26 in a plan view in a state where the pair of hip flaps are folded toward the skin surface side T1 of the main body portion 20. With this structure, the front sheet 21 is exposed in the area between the folded hip flaps 26, and the aftertreatment member 30 can be joined to the front sheet 21 in this area.

In a state where the flaps 25 and the hip flaps 26 are folded toward the skin surface side T1 of the main body portion 20, at least a part of the flap adhesive portion 52 is preferably disposed in the front-rear region RL extending in the front-rear direction L from the flap adhesive portion 53. The front-rear region RL is a region extending in the front-rear direction L from the entire width direction region of the flap adhesive portion 53. In fig. 7, the front and rear regions RL are indicated by diagonal lines. Some users roll up the main body portion 20 while folding the flaps 25 and hip flaps 26 toward the skin surface side T1 at the time of disposal. At this time, even if the aftertreatment member 30 abuts on the region of the topsheet 21 covered with the flaps 25 and hip flaps 26, the hook member is not joined to the topsheet. The flap adhesive part 52 and the flap adhesive part 53 are overlapped in the front-rear direction, so that the flap adhesive part 52 and the flap adhesive part 53 are joined, and the area of the front surface sheet 21 covered with the flap 25 and the hip flap 26 can be maintained in a rolled state.

As shown in fig. 9, the absorbent article 1X is folded with the 1 st folding line FL1, the 2 nd folding line FL2, and the 3 rd folding line FL3 as base points in a state before use. The 1 st folding line FL1 is a folding line located on the rear end edge side of the absorbent article 1, the 2 nd folding line FL2 is a folding line located on the front end edge side of the absorbent article 1, and the 3 rd folding line FL3 is a folding line between the 1 st folding line FL1 and the 2 nd folding line FL 2. As a mode of folding the absorbent article 1X configured as described above, the absorbent article 1 is folded with the skin surface side T1 of the main body portion 20 being inside with the 1 st folding line FL1 as a base point so that the state shown in fig. 9 (a) is changed to the state shown in fig. 9 (b). Next, the sheet is folded with the 3 rd folding line FL3 as a base point to be in the state shown in fig. 9 (c). Next, the sheet is folded with the 2 nd folding line FL2 as a base point to be in the state shown in fig. 9 (d).

When the absorbent article 1X is used, the absorbent article 1X is unfolded with the folding line that is folded last (the 2 nd folding line in the present embodiment) as a base point. The state of being unfolded with the folding line that is folded last as the base point is the state shown in fig. 9 (c), and in this state, the post-treatment member 30 is configured to be visually confirmed from the outside of the absorbent article 1 through the cover sheet 40. Specifically, the post-processing member 30 is preferably disposed between two folding lines (in the present embodiment, the 1 st folding line and the 3 rd folding line) adjacent to the folding line that is folded last. Since the aftertreatment member 30 is disposed between two adjacent fold lines to the fold line that is folded last, the wrapping sheet 40 is disposed only on the non-skin-surface-side T2 of the aftertreatment member 30 in the unfolded state with the fold line that is folded last as a base point, and the user can easily notice the arrangement. The user can easily grasp the presence of the post-treatment member 30.

Further, as shown in fig. 9 (d), it is more preferable that the post-processing member 30 is configured to be visually confirmed from the outside of the absorbent article 1X through the cover sheet 40 even in a packaged state in which the absorbent article 1X is packaged. The user can more easily grasp the presence of the post-treatment member 30. In addition, the term "visually recognizable" in the present invention means that the subject can be visually recognized when the subject is observed at a distance of about 30cm to 50cm by a subject having good vision (1.0 or more) in both eyes in a room (reference value: 500lx to 750 lx) brightly illuminated with daylight white (color temperature reference value 4600K (kelvin) to 5400K (kelvin)).

(4) Absorbent articles according to embodiment 3 and embodiment 4

Next, the absorbent articles according to embodiments 3 and 4 will be described. The post-treatment members of the absorbent articles according to embodiments 3 and 4 are provided with post-treatment adhesive sections 36 for joining the hook members and the topsheet. Fig. 10 (a) is a cross-sectional view schematically showing the post-treatment member 30Y according to embodiment 3, and fig. 10 (b) is a cross-sectional view schematically showing the post-treatment member 30Z according to embodiment 4. The aftertreatment adhesive section 36 is disposed on the non-skin surface of the aftertreatment members 30Y and 30Z. The non-skin surface of the aftertreatment member 30Y, 30Z is a surface on the non-skin surface side T2 of the aftertreatment member 30. The aftertreatment adhesive portion 36 may be disposed on at least the non-skin surface of the aftertreatment member 30, and may be provided on a surface other than the non-skin surface of the aftertreatment member, such as the surface of the shaft portion 311. The post-treatment adhesive portion 36 may be provided on the hook member 31 or the base sheet 35. By providing the post-treatment adhesive portion 36, the engagement force at the time of engaging the hook member 31 and the front sheet 21 at the time of disposal can be further ensured. Even in the case of a nonwoven fabric of short fibers (having a fiber length of approximately 10mm or less) such as a spunlace nonwoven fabric or a nonwoven fabric in which it is difficult to ensure strength for fiber entanglement, the joining force with respect to the top sheet 21 can be ensured by the post-treatment adhesive portion 36, and the state in which the main body portion is rolled up by the post-treatment member can be maintained more easily. The adhesive constituting the post-treatment bonding portion 36 may be the same as the main body bonding portion or may be different from the main body bonding portion 51. Preferably, the viscosity of the post-treatment bonding portion 36 may be lower than the viscosity of the body bonding portion 51. Since the viscosity of the post-treatment adhesive portion 36 is relatively low, the body adhesive portion 51 is easily disposed between the hook members 31. In addition, since the viscosity of the main body adhesive part 51 is relatively high, it is easy to ensure the joining force between the main body part and the wearing article when the absorbent article is used.

Next, a specific structure of the post-processing member will be described. As shown in fig. 10 (a), in the post-treatment member 30Y according to embodiment 3, a hole 35A is formed in the base sheet 35 along the thickness direction. An adhesive agent constituting the post-treatment adhesive portion is disposed on the skin surface side of the base sheet 35. The adhesive disposed on the skin surface side of the base sheet 35 is guided to the non-skin surface side of the base sheet through the hole 35A of the base sheet 35. The adhesive guided to the non-skin surface side of the base sheet 35 constitutes the post-treatment adhesive portion 36. The adhesive disposed on the skin surface side of the base sheet may be an adhesive for joining the back sheet 22 and the post-treatment adhesive portion 36. As shown in fig. 10 (b), the post-treatment adhesive portion 36 of the post-treatment member 30Z according to embodiment 4 is provided on the hook member 31 and the base sheet 35. The post-treatment adhesive section 36 is applied to the entire range of the post-treatment member 30Z in a plan view of the absorbent article. The post-treatment bonding portion 36 may be provided on the entire surface of the post-treatment member 30Z by coater coating or the like, or may be provided at an interval on the entire post-treatment member 30Z by spiral coating or the like. The structure of the post-treatment bonding portion is not limited to these embodiments, and various structures can be employed. The post-treatment bonding portion may be disposed over the entire region of the post-treatment member 30 in the front-rear direction or the entire region in the width direction, and may be disposed over the entire surface in a plan view.

While the present invention has been described in detail with reference to the above embodiments, it is clear to those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be implemented as modifications and variations without departing from the spirit and scope of the present invention defined by the claims. Therefore, the description of the present specification is for illustrative purposes, and the present invention is not limited thereto.

Further, the entire contents of the chinese invention patent application No. 201811577847.0 applied on 20/12/2018 and the japanese invention patent application No. 2018-246247 applied on 27/12/2018 are incorporated in the present specification by reference.

Industrial applicability

According to this aspect, an absorbent article that can be cleanly discarded in a rolled state by the aftertreatment member can be provided.

Description of the reference numerals

1. 1X: absorbent article

20. 20X: main body part

21: surface sheet

22: back sheet

23: absorbent core

30: member for after-treatment

31: hook member

311: shaft part

312: umbrella part

35: substrate sheet

36: adhesive part for post-treatment

40: wrapping sheet

41: independent packaging sheet

42: release sheet

51. 51X: body bonding part

L: front-back direction

W: width direction of the sheet