阅读说明：本技术 吸收性物品、吸收性物品包装体及其封装体、温度上升构件以及其与吸收性物品的套件 (Absorbent article, absorbent article package and package thereof, temperature-raising member, and kit of absorbent article and temperature-raising member ) 是由 内田祥平 林俊久 山本成海 渡子直纪 于 2021-05-20 设计创作，主要内容包括：本发明涉及吸收性物品、吸收性物品包装体及其封装体、温度上升构件以及其与吸收性物品的套件。使吸收性物品的穿着者感觉到舒适的温感。一种吸收性物品(1),其包括肌肤侧片(3)、非肌肤侧片(5)以及设于所述肌肤侧片(3)和所述非肌肤侧片(5)之间的吸收体(2),其特征在于,该吸收性物品(1)具有温度上升材料(30),该温度上升材料(30)在从穿着者穿着所述吸收性物品(1)起20分钟之后使所述穿着者的皮肤表面温度上升0.1度以上且5.0度以下。(The present invention relates to an absorbent article, an absorbent article package and a package thereof, a temperature raising member, and a kit with an absorbent article. The wearer of the absorbent article feels a comfortable temperature. An absorbent article (1) comprising a skin side sheet (3), a non-skin side sheet (5), and an absorbent body (2) provided between the skin side sheet (3) and the non-skin side sheet (5), characterized in that the absorbent article (1) comprises a temperature raising material (30), and the temperature raising material (30) raises the skin surface temperature of a wearer by 0.1 to 5.0 degrees after 20 minutes from the time when the absorbent article (1) is worn by the wearer.)

1. An absorbent article comprising a skin side sheet, a non-skin side sheet, and an absorbent body provided between the skin side sheet and the non-skin side sheet,

the absorbent article has a temperature rising material that raises the skin surface temperature of a wearer by 0.1 degrees or more and 5.0 degrees or less after 20 minutes from the time when the absorbent article is worn by the wearer.

2. The absorbent article according to claim 1,

the absorbent article has a temperature rising material that raises the skin surface temperature of a wearer by 0.4 degrees or more and 0.9 degrees or less after 20 minutes from the time when the absorbent article is worn by the wearer.

3. The absorbent article according to claim 1 or 2,

the absorptive article has a longitudinal direction, a width direction and a thickness direction which are orthogonal to each other,

the temperature rising material is provided at least in a part of a region from one end of the absorbent article to a position separated by 150mm toward the center in the longitudinal direction.

4. The absorbent article according to claim 1,

the absorbent article has a longitudinal direction, a width direction and a thickness direction which are orthogonal to each other,

and a pair of wing-protecting sections each having a wing-protecting adhesive section on the non-skin side in the thickness direction and projecting outward in the width direction,

in a region overlapping with the flap adhesive section in the longitudinal direction and overlapping with the absorbent body in the width direction,

the temperature raising member is not provided in the central portion in the width direction,

the temperature raising material is provided at an end in the width direction.

5. The absorbent article according to claim 4,

when the absorbent article is viewed from the skin side in the thickness direction,

at least one end portion in the longitudinal direction of the absorbent article has an end portion disposition region provided with the temperature-raising material,

a region overlapping the flap adhesive section in the longitudinal direction and an overlapping region overlapping the absorbent body in the width direction, the regions having a central disposition region provided with the temperature-increasing material,

in the direction of the width of the sheet,

the maximum length of the end disposition region is longer than the maximum length of the central disposition region.

6. The absorbent article according to claim 1,

the absorptive article has a longitudinal direction, a width direction and a thickness direction which are orthogonal to each other,

and a pair of wing-protecting sections each having a wing-protecting adhesive section on the non-skin side in the thickness direction and projecting outward in the width direction,

when the absorbent article is viewed from the skin side in the thickness direction,

at least one end portion in the longitudinal direction of the absorbent article has an end portion disposition region provided with the temperature-raising material,

the color of at least a part of the end portion disposition region is different from the color of a region overlapping with the flap adhesive portion in the longitudinal direction and a region overlapping with the absorbent body in the width direction.

7. The absorbent article according to claim 6,

when the absorbent article is viewed from the skin side in the thickness direction,

in a region overlapping with the flap adhesive section in the longitudinal direction and overlapping with the absorbent body in the width direction,

the temperature raising member is not provided in the central portion in the width direction,

the temperature raising material is provided at an end in the width direction,

the center portion in the width direction and the end portions in the width direction are the same color.

8. The absorbent article according to claim 1,

the absorptive article has a longitudinal direction, a width direction and a thickness direction which are orthogonal to each other,

when the absorbent article is viewed from the skin side in the thickness direction,

at least one end portion in the longitudinal direction of the absorbent article has an end portion disposition region provided with the temperature-raising material,

the end portion disposition region is provided with a mark indicating the abdomen side of the absorbent article or a mark indicating the back side of the absorbent article.

9. The absorbent article according to claim 1,

the absorbent article has:

an absorbent article main body portion including the skin side sheet, the non-skin side sheet, and the absorbent body; and

a temperature raising unit provided with the temperature raising material,

the absorbent article main body portion and the temperature increasing portion are separable.

10. The absorbent article according to claim 1,

the absorbent article has a longitudinal direction, a width direction and a thickness direction which are orthogonal to each other,

at least one end portion in the longitudinal direction of the absorbent article has a sheet provided with the temperature-elevating material,

the absorbent article has, in a region where the sheet is disposed, an overlapping region where the sheet overlaps with the absorber in the thickness direction and a non-overlapping region where the sheet does not overlap with the absorber in the thickness direction,

the non-overlapping region has a region in which the weight per unit area of the temperature-increasing material is higher than that of the overlapping region.

11. An absorbent article package, comprising:

the absorbent article of claim 1; and

a packaging material for packaging the absorbent article, wherein,

the packaging material has an associative identification that suggests that the absorbent article is provided with the temperature elevation material.

12. A package of an absorbent article package, comprising:

an absorbent article package in which the absorbent article according to claim 1 is packaged in a packaging material; and

a bag body for housing the absorbent article package, wherein,

the bag body has a pattern representing the absorbent article,

the pattern indicating the absorbent article includes a mark indicating a region where the temperature increasing material is disposed.

13. A kit of an absorbent article and a temperature-raising member,

the kit has:

an absorbent article including a skin side sheet, a non-skin side sheet, and an absorbent body provided between the skin side sheet and the non-skin side sheet; and

a temperature-increasing member that includes a temperature-increasing material that increases the skin surface temperature of a wearer by 0.1 degrees to 5.0 degrees after 20 minutes from when the absorbent article is worn by the wearer.

14. A temperature-raising member for use with an absorbent article including a skin-side sheet, a non-skin-side sheet, and an absorbent body provided between the skin-side sheet and the non-skin-side sheet,

the temperature-increasing member is provided with a temperature-increasing material that increases the skin surface temperature of a wearer by 0.1 degrees to 5.0 degrees after 20 minutes from the time when the absorbent article is worn by the wearer.

Technical Field

The present invention relates to an absorbent article, an absorbent article package, a package of an absorbent article package, a kit of an absorbent article and a temperature increasing member, and a temperature increasing member.

Background

Absorbent articles such as sanitary napkins are required to be less stuffy when worn. Since the absorbent article has a high heat retention rate and is likely to cause stuffiness due to the wearer's feeling of heat and perspiration, patent document 1 discloses an absorbent article having a heat retention rate of 45% or less.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2012-100945

Disclosure of Invention

Problems to be solved by the invention

On the other hand, excrement that has been discharged into the absorbent article and cooled by the ambient temperature sometimes comes into contact with the wearer, causing the wearer to feel cold. The body of the wearer is also required to be warmed because the body of the wearer is cooled to cause dysmenorrhea, lumbago, and the like. However, if the body of the wearer is excessively warmed, the wearer may feel pain or itch.

The present invention has been made in view of the above-described problems, and an object thereof is to provide an absorbent article that allows a wearer to feel a comfortable temperature.

Means for solving the problems

A main technical means for achieving the above object is an absorbent article including a skin side sheet, a non-skin side sheet, and an absorbent body provided between the skin side sheet and the non-skin side sheet, characterized in that the absorbent article includes a temperature raising material which raises a skin surface temperature of a wearer by 0.1 degrees or more and 5.0 degrees or less after 20 minutes from when the absorbent article is worn by the wearer.

Other features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the present invention, the wearer of the absorbent article can feel a comfortable temperature.

Drawings

Fig. 1 is a plan view of a sanitary napkin 1 as viewed from the skin side.

Fig. 2 is a plan view of the sanitary napkin 1 viewed from the non-skin side.

Fig. 3 is a schematic sectional view of the sanitary napkin 1 in the front-rear direction.

Fig. 4 is an explanatory view of the arrangement regions 31, 311 of the temperature elevating material 30 in the skin side sheet 3.

Fig. 5 is an explanatory view of the arrangement regions 31, 312 of the temperature elevating material 30 in the front side sheet 7.

Fig. 6 is an explanatory view of the arrangement region 31 of the temperature elevating material 30 in the sanitary napkin 1.

Fig. 7 is a table showing sensory evaluations of the wearer of the sanitary napkin 1.

Fig. 8 is a view showing the arrangement region 31 of the temperature increasing material 30 on the skin side surface of the sanitary napkin 1.

Fig. 9 is an explanatory view of a modification of the sanitary napkin 1.

Fig. 10 is an explanatory view of a modification of the sanitary napkin 1.

Fig. 11 is an explanatory view of a modification of the sanitary napkin 1.

Fig. 12A and 12B are explanatory views of a modification of the sanitary napkin 1.

Fig. 13 is a plan view of the packaging material 11 for packaging the sanitary napkin 1 as viewed from the outside.

Fig. 14A is a plan view of the individually packaged body 10 of the sanitary napkin 1 during unfolding, and fig. 14B is a plan view of the individually packaged body 10 of the sanitary napkin 1 before unfolding.

Fig. 15 is a perspective view of the package 60 of the individual package.

Fig. 16 is a rear view of the package body 60.

Fig. 17A and 17B are explanatory views of the individual package 72 of the temperature raising member 70.

Fig. 18 is an explanatory view of an individual package 82 of the sanitary napkin 80.

Description of the reference numerals

1. Sanitary napkins (absorbent articles); 1A, a front zone; 1B, a rear area; 1C, central region; 1w and a wing part; 2. an absorbent body; 3. a skin side sheet; 4. an intermediate sheet; 5. a non-skin side sheet; 6. a side panel; 7. a front side panel (sheet); 8. an anti-shift portion; 9. a rear side panel (sheet); 101. an overlap region; 102. a non-overlapping region; 10. an individual package; 11. a packaging material; 12. fixing belts; 13. associating identification; 20. a compression section; 30. a temperature raising material; 31. configuring an area; 32. an end arrangement region; 33. a central configuration area; 40. bear patterns (indicating the identification of the ventral side); 41. a pattern of the feet of a bear (indicating a dorsal sign); 42. text (the representation is a backside logo); 50. a main body section (absorbent main body section); 51. a temperature rise section; 52. cutting a line; 60. a package body; 61. a bag body; 62. 63, sanitary napkin pattern (pattern showing absorbent article); 64-66, area identification (area provided with temperature rising material); 70. a temperature-raising member; 80. sanitary napkins (absorbent articles).

Detailed Description

At least the following matters will become clear from the description of the present specification and the accompanying drawings.

An absorbent article comprising a skin-side sheet, a non-skin-side sheet, and an absorbent body provided between the skin-side sheet and the non-skin-side sheet, characterized in that the absorbent article comprises a temperature-raising material which raises the skin surface temperature of a wearer by 0.1 degrees or more and 5.0 degrees or less after 20 minutes from the time when the absorbent article is worn by the wearer.

According to such an absorbent article, the wearer can feel the temperature sensation generated by wearing the absorbent article because the skin surface temperature rises by 0.1 degree or more. Further, since the temperature of the skin surface is not increased to 5.0 degrees, the wearer is less likely to feel pain or itch, and the wearer can feel a comfortable feeling of warmth.

The absorbent article is characterized by having a temperature raising material which raises the skin surface temperature of the wearer by 0.4 degrees or more and 0.9 degrees or less after 20 minutes from the time when the wearer wears the absorbent article.

According to such an absorbent article, more wearers can feel a comfortable feeling of warmth by wearing the absorbent article.

The absorbent article is characterized in that the absorbent article has a longitudinal direction, a width direction and a thickness direction which are orthogonal to each other, and the temperature raising material is provided at least in a part of a region from one end of the absorbent article to a position separated by 150mm toward the center side in the longitudinal direction.

According to such an absorbent article, the temperature raising material can be disposed in the region corresponding to the wearer's lower abdomen and buttocks near the waist, and the wearer's lower abdomen and buttocks near the waist can be warmed.

The absorbent article is characterized by comprising a pair of wing sections, each of which has a wing adhesive section on the non-skin side in the thickness direction and protrudes outward in the width direction, wherein the temperature increasing material is not provided in the central section in the width direction and the temperature increasing material is provided at the end sections in the width direction in a region overlapping the wing adhesive section in the length direction and overlapping the absorbent body in the width direction.

According to such an absorbent article, the wearer's excretory opening can be prevented from being stimulated by the temperature-elevating material while the wearer's crotch portion is being heated.

In the absorbent article, at least one end portion in the longitudinal direction of the absorbent article has an end portion disposition region in which the temperature increasing material is provided, and a region overlapping with the flap adhesive portion in the longitudinal direction and overlapping with the absorbent body in the width direction has a central disposition region in which the temperature increasing material is provided, and a maximum length of the end portion disposition region is longer than a maximum length of the central disposition region in the width direction, when the absorbent article is viewed from the skin side in the thickness direction.

According to such an absorbent article, the temperature raising material is disposed so as to match the shape of the wearer's body, and the lower abdomen and the buttocks near the waist of the wearer can be warmed in a wider range. Thus, the wearer is more likely to feel a comfortable temperature sensation resulting from wearing the absorbent article.

In the absorbent article, the absorbent article has a longitudinal direction, a width direction, and a thickness direction which are orthogonal to each other, and has a pair of wing sections which have wing adhesive sections on the non-skin side in the thickness direction and which protrude outward in the width direction, and at least one end section in the longitudinal direction of the absorbent article has an end section placement region in which the temperature raising material is provided when the absorbent article is viewed from the skin side in the thickness direction, and the color of at least a part of the end section placement region is different from the color of a region overlapping the wing adhesive sections in the longitudinal direction and a region overlapping the absorbent body in the width direction.

According to such an absorbent article, the wearer can easily notice the end portion arrangement region, and can easily recognize that the temperature increasing material is provided at the end portion in the longitudinal direction of the absorbent article. Thus, the wearer is more likely to feel a comfortable temperature sensation resulting from wearing the absorbent article.

In the absorbent article, when the absorbent article is viewed from the skin side in the thickness direction, the temperature increasing material is not provided in the central portion in the width direction, the temperature increasing material is provided in the end portions in the width direction, and the color of the central portion in the width direction is the same as the color of the end portions in the width direction in the region overlapping with the flap adhesive portion in the longitudinal direction and the region overlapping with the absorbent body in the width direction.

According to such an absorbent article, the wearer is less likely to recognize that the temperature-elevating material is disposed in the crotch portion of the absorbent article, and the wearer can be prevented from getting uneasy to irritate the crotch portion by the temperature-elevating material. Therefore, the wearer can be given a feeling of comfort while the wearer is being warmed in the crotch portion.

In the absorbent article, the absorbent article has a longitudinal direction, a width direction, and a thickness direction which are orthogonal to each other, and when the absorbent article is viewed from the skin side in the thickness direction, at least one end portion in the longitudinal direction of the absorbent article has an end portion placement region in which the temperature raising material is provided, and the end portion placement region is provided with a mark indicating the abdomen side of the absorbent article or a mark indicating the back side of the absorbent article.

With such an absorbent article, a wearer who sees a mark indicating the abdominal side or the back side can wear the absorbent article in the correct front-back orientation. Therefore, the temperature raising material can be attached to the target portion of the body of the wearer, and the target portion can be heated.

In the absorbent article, the absorbent article is characterized by comprising: an absorbent article main body portion including the skin side sheet, the non-skin side sheet, and the absorbent body; and a temperature-increasing section provided with the temperature-increasing material, wherein the absorbent article main body section and the temperature-increasing section are separable.

According to such an absorbent article, the wearer can apply the temperature-raised portion to a desired part of the body and warm the same, and therefore can feel a more comfortable temperature feeling. Further, the absorbent article main body can be replaced while maintaining the state in which the temperature increasing unit is attached, or only the temperature increasing unit can be removed while maintaining the state in which the absorbent article main body is attached.

The absorbent article is characterized by comprising a longitudinal direction, a width direction and a thickness direction which are orthogonal to each other, wherein at least one end in the longitudinal direction of the absorbent article has a sheet provided with the temperature raising material, wherein the absorbent article has, in a region where the sheet is disposed, an overlapping region where the sheet overlaps with the absorbent body in the thickness direction and a non-overlapping region where the sheet does not overlap with the absorbent body in the thickness direction, and wherein the non-overlapping region has a region where the weight per unit area of the temperature raising material is higher than that of the overlapping region.

According to such an absorbent article, since the weight per unit area of the temperature increasing material does not become too high in the overlapping region having a thickness and easily coming into close contact with the wearer, the wearer can be prevented from feeling itching or the like, and the wearer can feel a comfortable feeling of warmth. In addition, since the weight per unit area of the temperature-elevating material is high in the overlapping region corresponding to the lower abdomen and the hip near the waist of the wearer, the target portion of the body of the wearer can be efficiently warmed.

An absorbent article package comprising the absorbent article and a packaging material for packaging the absorbent article, wherein the packaging material has a correlation mark for correlating that the absorbent article is provided with the temperature raising material.

According to such an absorbent article package, the wearer can easily recognize that the wearer has a feeling of warmth by wearing the absorbent article, by seeing the associative indicator of the packaging material when the absorbent article package is unfolded. Thus, the wearer is more likely to feel a comfortable temperature sensation resulting from wearing the absorbent article.

A package of an absorbent article package, comprising: an absorbent article package in which the absorbent article is packaged with a packaging material; and a bag body for housing the absorbent article package, wherein the bag body has a pattern indicating the absorbent article, and the pattern indicating the absorbent article includes a mark indicating a region where the temperature increasing material is arranged.

According to the package of the absorbent article package, the wearer can easily recognize that the package is warmed by wearing the absorbent article and can easily recognize the warmed portion. Thus, the wearer is more likely to feel a comfortable temperature sensation resulting from wearing the absorbent article.

A kit of an absorbent article and a temperature-raising member, the kit comprising: an absorbent article including a skin side sheet, a non-skin side sheet, and an absorbent body provided between the skin side sheet and the non-skin side sheet; and a temperature-increasing member that includes a temperature-increasing material that increases the skin surface temperature of a wearer by 0.1 degrees to 5.0 degrees after 20 minutes from when the absorbent article is worn by the wearer.

According to such a kit of an absorbent article and a temperature-increasing member, the wearer can use the temperature-increasing member together with the absorbent article, or use only the temperature-increasing member.

A temperature-increasing member used with an absorbent article including a skin-side sheet, a non-skin-side sheet, and an absorber provided between the skin-side sheet and the non-skin-side sheet, wherein the temperature-increasing member is provided with a temperature-increasing material that increases the skin surface temperature of a wearer by 0.1 to 5.0 degrees after 20 minutes from the time when the absorbent article is worn by the wearer.

According to such a temperature increasing member, the wearer can appropriately use the temperature increasing member together with a normal absorbent article.

Hereinafter, an example of a sanitary napkin will be described as an example of the absorbent article of the present embodiment. However, the absorbent article is not limited to sanitary napkins, and examples of other absorbent articles include panty liners, incontinence pads, disposable diapers, and the like.

The basic structure of the sanitary napkin 1 is set as follows

Fig. 1 is a plan view of a sanitary napkin 1 (hereinafter referred to as "sanitary napkin") as viewed from the skin side. Fig. 2 is a plan view of the sanitary napkin 1 viewed from the non-skin side. Fig. 3 is a schematic sectional view of the sanitary napkin 1 in the front-rear direction.

The sanitary napkin 1 has a longitudinal direction, a width direction and a thickness direction which are orthogonal to each other. In the longitudinal direction, the side that becomes the abdominal side of the wearer is the front side, and the side that becomes the back side of the wearer is the back side. In the thickness direction, the side that contacts the skin of the wearer is the skin side, and the opposite side is the non-skin side. The sanitary napkin 1 includes an absorbent body 2, a skin side sheet 3, an intermediate sheet 4, a non-skin side sheet 5, a pair of side sheets 6, and a front side sheet 7 on which a temperature raising member 30 (described later) is disposed.

The skin side sheet 3 is a liquid-permeable sheet disposed on the skin side of the absorbent body 2. The intermediate sheet 4 is a liquid-permeable sheet disposed between the skin side sheet 3 and the absorbent body 2. Examples of the liquid-permeable sheet include nonwoven fabrics and apertured films. The non-skin side sheet 5 is a liquid-impermeable sheet disposed on the non-skin side of the absorbent body 2 (absorbent core). The side sheet 6 is a sheet extending outward from both side portions in the width direction of the skin-side surface of the skin-side sheet 3. Examples of the side sheet 6 include a soft nonwoven fabric and a waterproof nonwoven fabric similar to the skin side sheet 3.

The absorbent body 2 has an absorbent core and a liquid-permeable core wrap covering the absorbent core. Examples of the absorbent core include absorbent cores formed by adding a Super Absorbent Polymer (SAP) to liquid absorbent fibers such as pulp fibers and cellulose absorbent fibers and molding the resulting mixture into a predetermined shape. Further, the absorbent body may not have a core sheet.

The sanitary napkin 1 is divided in the front-rear direction into a front region 1A on the front side of the front end 2a of the absorbent body 2 and a rear region 1B on the rear side of the front region 1A. The front sheet 7 is mainly disposed in the front region 1A. In the sanitary napkin 1 illustrated in fig. 1, the rear end portion of the front side sheet 7 overlaps the front end portion of the absorbent body 2 and is disposed in the rear region 1B. However, the present invention is not limited to this, and the rear end of the front side sheet 7 may be in contact with or separated from the front end 2a of the absorbent body 2.

As shown in fig. 2, the front side sheet 7 of the present embodiment is configured by three sheets stacked in the thickness direction. The front side sheet 7 is disposed on the non-skin side of the intermediate sheet 4 and the absorbent body 2 and on the skin side of the non-skin side sheet 5. However, the front side sheet 7 is not limited to the above-described embodiment, and may be formed of one sheet, or may be formed by stacking a plurality of sheets other than three sheets.

The rear region 1B of the sanitary napkin 1 is substantially in the shape of a normal sanitary napkin, and has a pair of flap portions 1w protruding outward in the width direction at the center in the front-rear direction. The wing-protecting portion 1w is formed of a side sheet 6 and a non-skin side sheet 5. Further, in the rear region 1B, a region slightly forward of the center in the front-rear direction (the center in the front-rear direction of the wing guard portion 1 w) is assumed to abut against the excretory opening of the wearer. Further, the sanitary napkin may not have a flap portion.

The shape of the front region 1A of the sanitary napkin 1 is not particularly limited, and examples thereof include a triangular shape, a rectangular shape, a polygonal shape (including a case where corners are rounded and a case where sides are curved), a circular shape, an elliptical shape, a biological shape, and a combination thereof. The front region 1A of the present embodiment has a width larger than the maximum width of the rear region 1B excluding the pair of wing guard portions 1 w. The front region 1A is substantially triangular in shape having a width that narrows from its front end toward its rear end. The front side sheet 7 is also formed in a substantially triangular shape in which the shape of the front region 1A is similarly reduced. However, the shape is not limited to the above shape, and the front side sheet 7 may have a shape different from the front region 1A, such as a rectangular shape.

The sanitary napkin 1 is provided with an anti-offset portion 8 on the non-skin side surface (i.e., the non-skin side surface of the non-skin side sheet 5). The displacement prevention section 8 is an adhesive section (article-side adhesive section) to which an adhesive is applied, and as shown in fig. 2, includes a center displacement prevention section 81, a front displacement prevention section 82, and a flap displacement prevention section 83.

The center deviation preventing portion 81 is provided in the center in the width direction of the sanitary napkin 1 in the range from the front to the rear of the sanitary napkin 1 for attaching the main body portion of the sanitary napkin 1 to the inner side surface of underwear. In the center shift-preventing portion 81, 8 rectangular adhesive portions having long sides in the front-rear direction are arranged at intervals in the width direction.

The front shift-preventing portions 82 are provided in a pair on both sides in the width direction of the front region 1A, for attaching both ends in the width direction of the wide front region 1A to the inner side surfaces of underwear. In each of the front displacement-preventing portions 82, 3 of the rectangular adhesive portions having long sides in the front-rear direction are arranged at intervals in the width direction. The front deviation preventing portion 82 has a length in the front-rear direction shorter than that of the center deviation preventing portion 81. The front shift prevention unit 82 is disposed so as to partially overlap the center shift prevention unit 81 in the front-rear direction and extend to a position forward of the center shift prevention unit 81.

The flap deviation preventing portions 83 are provided on the pair of flap portions 1w, respectively, for attaching the flap portions 1w folded back to the outside of the underwear to the outside surface of the underwear. In each flap shift preventing portion 83, 3 rectangular adhesive portions having long sides in the front-rear direction are arranged at intervals in the width direction.

The shapes, the number, and the arrangement positions of the deviation preventing portions 81 to 83 are not limited to those illustrated in fig. 2.

The sanitary napkin 1 further includes compressed portions 20 formed by recessing the sanitary napkin 1 in the thickness direction. The compressed portion 20 may be a (groove-like) compressed portion continuously recessed in the thickness direction in the front-rear direction and the width direction, or may be a dot-like compressed portion discontinuously recessed in the thickness direction. The compressed portions 20 can prevent the absorbent body 2 from being deformed or improve the liquid diffusibility of the sanitary napkin 1. As shown in fig. 1, the sanitary napkin 1 of the present embodiment has compressed portions in which dot-shaped compressed portions are arranged discretely, compressed portions in which dot-shaped compressed portions are arranged in a linear array, compressed portions in which dot-shaped compressed portions are arranged so as to form a pattern (for example, eyes and noses of a bear), and compressed portions in the shape of characters.

In the compressed portion 20, the thickness of the sanitary napkin 1 is smaller than that of the surrounding area, and the fiber density of the sanitary napkin 1 is higher. These comparisons can be made using well known methods. As a comparison of the thickness of the sanitary napkin 1, a visual comparison method and use of Sanfeng (san Zhang)) Manufactured dial type thickness gauge ID-C1012C or equivalent instrument for obtaining the thickness at 3.0gf/cm²A method of comparing values measured by pressurizing a target site. As a comparison of the density of the sanitary napkin 1, a method based on an image obtained by enlarging a cross section obtained by cutting the sanitary napkin 1 in the thickness direction with an electron microscope or the like can be exemplified.

In the present embodiment, the compression portion 20 provided at the center in the width direction of the front region 1A is formed by compressing the skin side sheet 3 and the front side sheet 7 from the skin side. The compression portion 20 provided at the center portion in the width direction of the rear region 1B is a compression portion that compresses the skin side sheet 3 to the absorbent body 2 from the skin side, and a compression portion (not shown) that compresses only the absorbent body 2.

Sanitary napkin 1 having temperature-raising material 30

Fig. 4 is an explanatory view of the arrangement regions 31, 311 of the temperature elevating material 30 in the skin side sheet 3. Fig. 5 is an explanatory view of the arrangement regions 31, 312 of the temperature elevating material 30 in the front side sheet 7. Fig. 6 is an explanatory view of the arrangement region 31 of the temperature elevating material 30 in the sanitary napkin 1. That is, fig. 6 shows a region in which the arrangement region 311 of the skin side sheet 3 and the arrangement region 312 of the front side sheet 7 are joined together. Fig. 7 is a table showing sensory evaluations of the wearer of the sanitary napkin 1. Fig. 8 is a view showing the arrangement region 31 of the temperature increasing material 30 on the skin side surface of the sanitary napkin 1. Fig. 9 to 12B are explanatory views of modifications of the sanitary napkin 1.

The sanitary napkin 1 of the present embodiment has a front region 1A, and has a shape that is longer on the front side and wider than the shape of a normal sanitary napkin 1. When the sanitary napkin 1 is attached so that the excretory opening contact region of the sanitary napkin 1 corresponds to the excretory opening of the wearer, the front region 1A of the sanitary napkin 1 corresponds to the lower abdomen of the wearer. Since the lower abdomen of the wearer is covered with the front region 1A, the lower abdomen of the wearer can be warmed as compared with the sanitary napkin 1 not having the front region 1A.

The sanitary napkin 1 of the present embodiment further includes a "temperature raising member 30" for raising the temperature of the skin surface of the wearer. The region where the temperature elevating material 30 is disposed is referred to as "disposition region 31". As shown in fig. 2, the temperature-elevating material 30 is disposed on the non-skin-side surface of the skin side sheet 3 and the skin side surface of the front side sheet 7a located on the skin side. However, the temperature-elevating material 30 is not limited thereto, and may be disposed on any of the materials constituting the sanitary napkin 1 (for example, the absorbent body 2, the intermediate sheet 4, and the like). The skin side sheet 3 and the front side sheet 7 are not particularly limited as long as they are sheets capable of holding the temperature raising member 30, and examples thereof include nonwoven fabrics.

Examples of the arrangement of the temperature raising material 30 include a method of applying the material by various known coating methods such as a spray method, a roll coating method, and a brush coating method, a method of dipping the sheet, and a method of mixing a particulate agent with fibers of the sheet. In the arrangement region 31 of the temperature increasing material 30, the temperature increasing material 30 may be arranged (coated over the entire surface) over the entire region, or the temperature increasing material 30 may be arranged in various known patterns such as a stripe pattern and a spiral pattern.

As the temperature-elevating material 30, for example, a material containing a solvent component and a temperature-sensitive component that activates a TRP channel (a thermoreceptor (a thermal perception receptor)) can be exemplified. By providing the sanitary napkin 1 with the temperature-elevating material 30, the TRP channel of the wearer of the sanitary napkin 1 is stimulated. As a result, it can be expected that heat is generated from the contact portion of the temperature-elevating material 30 via the sympathetic nervous system, and the skin surface temperature of the contact portion of the temperature-elevating material 30 is increased.

In the present embodiment, as shown in fig. 2, the temperature-elevating material 30 is not disposed in a portion that directly contacts the skin of the wearer. However, the temperature rising material 30 reaches the skin of the wearer by deposition or volatilization at the time of wearing. The temperature sensitive component that reaches the skin of the wearer activates the TRP channel of the wearer, imparting a temperature sensation to the site.

The temperature sensitive component of the temperature-elevating material 30 is not particularly limited as long as it activates the TRP channel, and may be in a liquid form or a solid form (including a paste form, a powder form, and the like). In addition, the temperature sensitive component is preferably a plant-derived compound from the viewpoint of the feeling of comfort of the wearer. Examples of the warm-feeling stimulants include capsaicin, capsaicin (LD 50: 47mg/kg, molecular weight: 305), capsaicinoids (dihydrocapsaicin, nordihydrocapsaicin, homodihydrocapsaicin, homocapsaicin, nonivamide, etc.), capsorubin, benzyl nicotinate (LD 50: 2,188mg/kg, molecular weight: 213), β -butoxyethyl nicotinate, N-acetyl vanillylamide (N- アシルワニルアミド), vanillylnonanamide, polyhydric alcohol, paprika, capsicum powder, capsicum tincture, capsicum extract, vanillyl nonanoate ether, vanillyl alcohol alkyl ether derivatives (e.g., vanillyl alcohol ethyl ether, vanillyl alcohol butyl ether LD 50: 4,900mg/kg, molecular weight: 210), vanillyl alcohol pentyl ether, vanillyl alcohol hexyl ether), isovanillyl alcohol alkyl ether, ethyl vanillyl alcohol alkyl ether, veratryl alcohol derivatives, substituted benzyl alcohol alkyl ethers, capsaicin alkyl ethers, and mixtures thereof, Vanillin propylene glycol acetal, ethyl vanillin propylene glycol acetal, ginger extract, ginger oil, gingerol (LD 50: 250mg/kg, molecular weight: 294), zingerone, hesperidin and pyrrolidone carboxylic acid and any combination thereof.

The solvent component is not particularly limited as long as it can contain a temperature sensitive component, and examples thereof include lipophilic solvents and hydrophilic solvents. Such a solvent component can dissolve, disperse, or the like the temperature sensitive component. Examples of the lipophilic solvent include oils and fats, such as natural oils (e.g., fatty acid esters such as triglycerides, coconut oil, linseed oil, (caprylic/capric) triglycerides, and the like), hydrocarbons (e.g., paraffins, such as liquid paraffin), and the like. Examples of the hydrophilic solvent include water and alcohol. Examples of the alcohol include lower alcohols such as methanol, ethanol, ethylene glycol and glycerol; higher alcohols such as octanol, lauryl alcohol, and myristyl alcohol. Among them, from the viewpoint of easy control of volatility, particularly easy reduction of volatility, the solvent component is preferably an oil or fat (lipophilic solvent) or an alcohol (hydrophilic solvent). In the sanitary napkin 1, the solvent component is preferably a lipophilic solvent from the viewpoint of the absorption properties being less likely to be inhibited.

The temperature-elevating material 30 as described above is different from a heat generating agent in which a temperature-sensitive component itself generates heat, and thus is less likely to cause low-temperature burn. Further, since the offset preventing portion 8 for attaching the sanitary napkin 1 to underwear is not easily softened, the offset preventing portion 8 is not easily left in underwear when the sanitary napkin 1 is detached from underwear, and therefore the temperature raising material 30 as described above is preferable.

However, the temperature rising material 30 is not limited to the above-described embodiment, and may be a temperature-sensitive component that generates heat by itself. For example, the temperature rising material 30 may contain an oxidizing metal that generates heat by contact with air. Examples of the oxidizing metal include one or more kinds of powders and fibers selected from iron, aluminum, zinc, manganese, magnesium, calcium, and minerals such as tourmaline and cordierite. In order to maintain the heat generation temperature and the heat generation time, it is preferable that the temperature raising material 30 contains not only the oxidizing metal but also activated carbon, a water retaining agent, salt, water, and the like.

As shown in fig. 4, the arrangement region 311 of the temperature elevating material 30 in the skin side sheet 3 includes a pair of front side arrangement regions 311A and a pair of rear side arrangement regions 311B arranged at a distance from the pair of front side arrangement regions 311A on the rear side in the longitudinal direction. In the pair of front side disposition regions 311A and the pair of rear side disposition regions 311B, band-shaped disposition regions extending in the longitudinal direction are arranged on both sides of a central portion (width of about 20 mm) in the width direction of the sanitary napkin 1. The pair of front-side disposition regions 311A are disposed on the front side of the absorbent body 2 and overlap the front side sheet 7 in the thickness direction. The pair of rear-side disposition regions 311B are disposed on the rear side of the front side sheet 7 and overlap the absorbent body 2 in the thickness direction.

As shown in fig. 5, the front side sheet 7 is provided with a temperature raising material 30 over the entire region thereof. That is, the entire region of the front side sheet 7 becomes the disposition region 312 of the temperature elevating material 30.

As described above, in the sanitary napkin 1 of the present embodiment, the temperature raising material 30 is provided in the region from the crotch portion to the lower abdomen portion of the wearer. Therefore, the wearer can be warmed in the range from the crotch to the lower abdomen. By warming the lower abdomen of the wearer, that is, the portion of the wearer close to the uterus, it is expected to alleviate dysmenorrhea of the wearer, or alleviate symptoms such as premenstrual syndrome, cold intolerance, and climacteric disorder.

The sanitary napkin 1 of the present embodiment further includes a temperature raising material 30, and the temperature raising material 30 raises the skin surface temperature of the wearer by 0.1 degrees to 5.0 degrees after 20 minutes from the time when the wearer wears the sanitary napkin 1.

When the rise in skin surface temperature is less than 0.1 degrees, the wearer hardly feels a feeling of warmth generated by wearing the sanitary napkin 1. On the other hand, if the rise in skin surface temperature is higher than 5.0 degrees, the wearer may feel pain or itch due to an excessive rise in skin surface temperature. In the case of disposable warmers, etc., the skin surface temperature at the time of application may be set to 38 to 42 degrees, and if the skin surface temperature is 42 degrees or less, there is less possibility of low-temperature burns. Therefore, if the temperature rise from the skin surface temperature of the sanitary napkin 1 before wearing is 5.0 degrees or less, the skin surface temperature can be kept at 42 degrees or less, and low-temperature burn can be prevented. Therefore, by disposing the temperature raising material 30 for raising the skin surface temperature by 0.1 degrees or more and 5.0 degrees or less in the sanitary napkin 1, the wearer can feel a comfortable feeling of warmth.

Further, the skin surface temperature of the wearer refers to the surface temperature of the position of the skin affected by wearing the sanitary napkin 1. Specifically, the surface temperature of the skin in the range from the navel position to the crotch portion in the vertical direction of the wearer.

For example, in the case of the sanitary napkin 1 for the purpose of warming the lower abdomen of the wearer as in the present embodiment, the surface temperature of the skin at the position 10mm to 12mm lower than the navel in the abdominal side of the wearer and at the center position in the width direction of the wearer is preferable. In the present embodiment, the surface temperature of the skin is a position in the vertical direction that is the maximum width of the front region 1A of the sanitary napkin 1 and corresponds to a position p1 (see fig. 6) that is the center in the width direction in a state where the sanitary napkin 1 is attached at an appropriate position.

In the case of the sanitary napkin 1 (fig. 9) of the modification example for the purpose of warming the vicinity of the waist of the wearer, for example, the surface temperature of the skin at the position in the vertical direction corresponding to the position of the navel on the abdominal side on the back surface of the wearer and at the center position in the width direction of the wearer is preferable.

When the temperature of the skin surface of the wearer is raised, the concentration of the temperature sensitive component of the temperature raising member 30 is increased, or the weight per unit area (mass per unit area: g/m) of the temperature raising member 30 is increased²) Alternatively, it is preferable to increase the arrangement area 31 of the temperature raising material 30. Conversely, when the temperature of the skin surface of the wearer is lowered, it is preferable to lower the concentration of the temperature-elevating material 30, to lower the weight per unit area of the temperature-elevating material 30, or to reduce the arrangement area 31 of the temperature-elevating material 30. In addition, the skin surface temperature of the wearer can also be adjusted by changing the kind of the temperature elevation material 30.

Specifically, the concentration of the temperature sensitive component in the temperature elevating material 30 is preferably 1 to 70% by mass, more preferably 10 to 60% by mass, and still more preferably 20 to 55% by mass. In addition, the temperature-sensitive component of the temperature rising material 30 in the sanitary napkin 1 preferably has a weight per unit area of 0.001g/m²～40g/m²More preferably 0.1g/m²～30g/m²More preferably 1g/m²～20g/m²It is preferable.

The method of measuring the skin surface temperature of the wearer was performed by the following method.

First, a temperature sensor is attached to a person to be measured. In the present embodiment, as described above, the temperature sensor is attached to a position that is lowered by 10mm to 12mm from the navel toward the right lower side. The temperature sensor is preferably a tape-type temperature sensor (hand-held temperature recorder) manufactured by the ohmmeter co, or an equivalent thereof.

Next, the subject person was rested in a room kept at room temperature of 24 ℃ and humidity of 55% for 10 minutes while sitting on a chair without wearing the sanitary napkin 1. Thereafter, the skin surface temperature of the subject person before wearing the sanitary napkin 1 is measured.

Next, the measurement subject person wears the sanitary napkin 1 and sits still in a state of sitting on the chair for 20 minutes again. The skin surface temperature of the subject person was measured again after 20 minutes from wearing the sanitary napkin 1. The difference in the measured values thus obtained is the temperature of the skin surface temperature rise after 20 minutes from the time when the wearer wears the sanitary napkin 1.

In addition, sensory tests related to the temperature sensation of the sanitary napkin 1 were performed. The skin surface temperature before wearing the sanitary napkin 1 and the skin surface temperature after 20 minutes from wearing the sanitary napkin 1 were measured by letting the tester actually wear the sanitary napkin 1 according to the measurement methods described above. Then, the test person was allowed to evaluate wearing comfort after 20 minutes from wearing the sanitary napkin 1. The temperature sensation caused by wearing the sanitary napkin 1 was evaluated on four scales of 1 strong, 2 just, 3 weak, and 4 non-sensation.

The sanitary napkin 1 to be used is provided with a temperature raising member 30 on the non-skin side surface of the skin side sheet 3 and the skin side surface of the front side sheet 7. As the temperature raising material 30, a material in which the temperature sensitive component is vanillyl butyl ether and the solvent component is (caprylic/capric) triglyceride is used. The weight per unit area of the temperature-elevating material 30 in the skin side sheet 3 was 3g/m²The weight per unit area of the temperature elevating member 30 in the front side sheet 7 was set to 14g/m². The test subjects were 6 women aged 20 to 45 years, and were non-obese women with a BMI value of less than 25.

The results are shown in fig. 7. From the results of the table, it was found that the temperature of the skin surface of the wearer rose after 20 minutes by wearing the sanitary napkin 1 having the temperature-rising material 30. Specifically, the skin surface temperature rises by a temperature in the range of 0.4 ℃ to 1.1 ℃.

It is known that a tester having an elevated temperature of 0.4 to 0.7 degrees feels just a temperature sensation caused by wearing the sanitary napkin 1. There are also testers who feel an effect on dysmenorrhea due to an increase in skin surface temperature. It was also found that, in the case of a tester whose rising temperature was 0.8 degrees, a tester who had just felt the rising temperature of 0.9 degrees was also able to feel the rising temperature of 0.8 degrees. On the other hand, the tester with the rising temperature of 1.1 ℃ had a strong temperature sensation and felt itchy.

Therefore, it is preferable that the sanitary napkin 1 has the temperature-elevating material 30, and the temperature-elevating material 30 elevates the temperature of the skin surface of the wearer by 0.4 degrees or more and 0.9 degrees or less after 20 minutes from the time when the wearer wears the sanitary napkin 1. By doing so, more wearers can feel comfortable warmth by wearing the sanitary napkin 1. Further, it is possible to more reliably prevent the wearer from feeling pain or itching due to an excessive increase in the skin surface temperature.

As shown in fig. 8, it is preferable to provide the compressed portion 20 in a region overlapping with the arrangement region 31 of the temperature raising material 30 when the sanitary napkin 1 is viewed in the thickness direction. In the compression portion 20, since the thickness of the skin side sheet 3 is small, the temperature raising material 30 provided on the non-skin side surface of the skin side sheet 3 and the front side sheet 7 is easily transmitted to the wearer, and the wearer can be efficiently warmed. In addition, the wearer of the sanitary napkin 1 having the temperature elevating material 30 may sweat. Since the skin-side surface of the sanitary napkin 1 is depressed in the thickness direction in the compressed portion 20, air easily passes through. Therefore, the stuffiness of the wearer due to sweat and excretory fluid can be suppressed, and the wearing comfort of the sanitary napkin 1 can be improved.

Further, it is preferable to form the non-skin side sheet 5 as a liquid-impermeable sheet having air permeability. Examples thereof include a porous plastic sheet (e.g., a polyethylene sheet) and a nonwoven fabric (e.g., an SMS nonwoven fabric) coated with a hydrophobic resin. By doing so, stuffiness due to sweat and excretory fluid of the wearer can be suppressed, and the wearing comfort of the sanitary napkin 1 can be improved. On the other hand, by using the non-skin side sheet 5 as a non-air-permeable sheet such as a synthetic resin film, the air heated by the effect of the temperature raising member 30 is less likely to escape, and the wearer can be efficiently heated.

In addition, the water absorption of cotton fiber is better. Therefore, the skin side sheet 3 is preferably a sheet such as a nonwoven fabric containing cotton fibers. Preferably, the sheet contains 70% or more of cotton fibers. By doing so, sweat and excretory fluid of the wearer are easily absorbed, and the skin side surface of the sanitary napkin 1 is less likely to become sticky. Thereby improving the wearing comfort of the sanitary napkin 1. Further, since the skin side surface of the sanitary napkin 1 is not sticky but is dry, the wearer can easily feel the temperature sensation caused by the temperature raising material 30. The proportion of the cotton fibers in the skin side sheet 3 can be confirmed by a known method, for example, a dissolving method in which the cotton fibers are dissolved by using sulfuric acid, or a microscopic method.

Further, as described above, it is preferable to use the skin side sheet 3 containing cotton fibers, or to provide the intermediate sheet 4 between the skin side sheet 3 and the absorbent body 2, so that the rate of rewetting sweat or excretory fluid is relatively low. The wet return rate is preferably 50% or less. By doing so, the skin side surface of the sanitary napkin 1 is less likely to become sticky. This can improve the wearing comfort of the sanitary napkin 1, and the wearer can easily feel the temperature due to the temperature raising material 30.

The rewet rate can be measured by the following method.

First, 3g of anticoagulated horse blood (prepared by adding ethylenediaminetetraacetic acid to horse blood for the purpose of preventing coagulation) with EDTA of 37. + -.1 ℃ was dropped (1 st time) from a perforated acrylic plate (200 mm. times.100 mm, 125g, a hole of 40 mm. times.10 mm in the center) placed on the sanitary napkin 1 by using a pipette. After 1 minute, 3g of EDTA anticoagulated horse blood at 37. + -. 1 ℃ was again pipetted (2 nd time) from the wells of the acrylic plate.

Immediately after the 2 nd dropping of blood, the acrylic plate was detached, 10 filter papers (qualitative filter paper No.2,50 mm. times.35 mm, manufactured by Toyo Kabushiki Kaisha) were placed on the place where the blood was dropped, and the pressure was 30g/cm from the filter papers²The counterweight is placed. After 1 minute, the filter paper was removed, and the "rewet rate" was calculated according to the following equation.

Wet back ratio (%) < 100 × (mass of filter paper after test-mass of filter paper before test)/6 (g)

In the case of the sanitary napkin 1 extending forward to such an extent as to cover the lower abdomen of the wearer as in the present embodiment, it is preferable that the temperature raising member 30 is provided at least partially in the region 34 from the front end 1a1 of the sanitary napkin 1 to a position separated by 150mm toward the center in the longitudinal direction, as shown in fig. 6. More preferably, the temperature rising material 30 is provided at least partially in a region 35 located 100mm apart from the front end 1a1 of the sanitary napkin 1 in the longitudinal direction toward the center. By doing so, the temperature raising member 30 can be disposed in the region of the sanitary napkin 1 corresponding to the lower abdomen of the wearer, and the lower abdomen of the wearer can be warmed.

The sanitary napkin 1 of the modification shown in fig. 9 has a shape that is long behind the sanitary napkin 1 and has a wide width. The temperature raising material 30 is provided in a region corresponding to a region from the crotch of the wearer to the buttocks near the waist. Specifically, a rear side sheet 9 is provided between the skin side sheet 3 and the non-skin side sheet 5 at the rear of the sanitary napkin 1, and a temperature raising member 30 is provided on the rear side sheet 9. The temperature raising member 30 is disposed at the center and the rear in the longitudinal direction of the skin side sheet 3. Therefore, the range from the crotch of the wearer to the buttocks near the waist can be warmed, and the alleviation of the lumbago of the wearer can be expected.

In the sanitary napkin 1 of the modification shown in fig. 9, the rear end extends to cover the buttocks of the wearer near the waist. In this case, it is preferable that the temperature raising member 30 is provided at least partially in a region 34 located at a position separated from the rear end 1a2 of the sanitary napkin 1 to the central side by 150mm in the longitudinal direction, and more preferably at least partially in a region 35 located at a position separated from the rear end 1a2 of the sanitary napkin 1 to the central side by 100 mm. By doing so, the temperature-elevating material 30 can be disposed in the region of the sanitary napkin 1 corresponding to the buttocks near the waist of the wearer, and the vicinity of the waist of the wearer can be warmed.

However, the sanitary napkin 1 may be provided with the temperature increasing material 30, and the disposition region 31 of the temperature increasing material 30 is not limited to the size, shape, and disposition position illustrated in fig. 6 and 9. For example, the temperature raising member 30 may not be disposed in the above-described range (the regions 34 and 35 from one end of the sanitary napkin 1 to the position separated by 100mm to 150 mm). The temperature raising member 30 may be disposed at both ends of the sanitary napkin 1 in the longitudinal direction. The temperature raising member 30 may be disposed only in the central portion of the sanitary napkin 1 in the longitudinal direction. Further, since the wearer can easily feel the temperature due to the temperature raising member 30 so that the skin side of the sanitary napkin 1 is not sticky, the temperature raising member 30 may be disposed in a region not overlapping the absorbent body 2 when the sanitary napkin 1 is viewed in the thickness direction.

As a method for determining the arrangement region 31 of the temperature elevating material 30, for example, there is a method in which: the materials laminated in the thickness direction of the sanitary napkin 1 are decomposed by cold spray or the like, colored fine particles such as bamboo charcoal, cocoa powder or the like are scattered on each material, and then the particles are shaken off. Since many particles are adhered to the portion where the temperature-elevating material 30 is disposed, the disposition region 31 of the temperature-elevating material 30 can be determined.

Further, a plurality of samples may be finely cut from the sanitary napkin 1 in the longitudinal direction and the width direction at predetermined sizes to perform sensory tests. For example, the cut sample is attached to the upper arm of the examiner, and a sheet having high airtightness, such as a PE sheet, is superimposed thereon. The examiner measures and records the time until the temperature-sensitive effect of the sample is felt. By comparing the measured time of each sample, the position of the sanitary napkin 1 from which the sample having a short measured time was cut out can be determined as the arrangement region 31 of the temperature elevating material 30.

The sanitary napkin 1 of the present embodiment has a front side sheet 7 (sheet) provided with a temperature raising member 30 at the longitudinal front end. The rear end portion of the front side sheet 7 overlaps the absorbent body 2 in the thickness direction. Therefore, as shown in fig. 6, the sanitary napkin 1 has, in the region where the front side sheet 7 is disposed, an overlapping region 101 where the front side sheet 7 overlaps the absorbent body 2 in the thickness direction, and a non-overlapping region 102 where the front side sheet 7 does not overlap the absorbent body 2 in the thickness direction. As described above with reference to fig. 4, the arrangement region 311 of the temperature raising member 30 in the skin side sheet 3 includes a pair of front arrangement regions 311A located on the front side of the absorbent body 2 and overlapping the front side sheet 7 in the thickness direction, and a pair of rear arrangement regions 311B located on the rear side of the front side sheet 7 and overlapping the absorbent body 2 in the thickness direction. As shown in fig. 5, the temperature raising member 30 is disposed over the entire region of the front side sheet 7.

In the skin side sheet 3, avoidThe temperature increasing material 30 is disposed in the region of the overlap region 101. Therefore, only the temperature raising member 30 applied to the front side sheet 7 is disposed in the overlap region 101. On the other hand, the non-overlapping region 102 has a region (region where the front-side disposition region 311A is located) where the temperature increasing material 30 applied to the front side sheet 7 and the temperature increasing material 30 applied to the skin side sheet 3 are disposed so as to overlap each other. That is, the non-overlapping region 102 has a weight per unit area (g/m) of the temperature rise material 30 as compared with the overlapping region 101²) The higher region.

The overlapping region 101 having a thickness where the front side sheet 7 overlaps with the absorbent body 2 is more likely to be in close contact with the skin of the wearer than the non-overlapping region 102 having a small thickness. Therefore, it is preferable that the overlapping region 101 not be provided with a region in which the weight per unit area of the temperature-increasing material 30 increases. By doing so, it is possible to prevent the skin of the wearer from being locally heated to cause itching or the like, and to provide the wearer with a comfortable feeling of warmth. In particular, since the skin side sheet 3 is closer to the skin of the wearer than the front side sheet 7, excessive irritation of the skin of the wearer can be prevented by not disposing the temperature raising member 30 in the portion of the skin side sheet 3 corresponding to the overlap region 101. On the other hand, it is preferable to provide a region in which the weight per unit area of the temperature raising material 30 is increased in the non-overlapping region 102 of the lower abdominal portion on the front side of the absorbent body 2. By doing so, the lower abdomen of the wearer can be efficiently warmed.

In the case of the sanitary napkin 1 of the modification shown in fig. 9, the temperature-raising material 30 is disposed in the skin side sheet 3 in an area that avoids the overlapping area where the back side sheet 9 (sheet) and the absorbent body 2 overlap in the thickness direction, and thus, the occurrence of itching or the like in the wearer can be prevented. Further, by disposing the temperature-increasing material 30 in the region of the skin side sheet 3 that is rearward of the absorbent body 2 and overlaps the rear side sheet 9, the buttocks of the wearer near the waist can be efficiently warmed.

In order to compare the weights per unit area of the temperature elevating materials 30 in the overlapping area 101 and the non-overlapping area 102, it is preferable to perform a sensory test in the same manner as when the arrangement area 31 of the temperature elevating materials 30 is determined. A small sample of a predetermined size is cut out from the overlapped area 101 and the non-overlapped area 102 of the sanitary napkin 1, and the sample is attached to the upper arm of the examiner or the like, and the time until the temperature effect of the sample is sensed is measured. The following is known: if the measurement time of the sample cut out from the non-overlapping region 102 is shorter than the measurement time of the sample cut out from the overlapping region 101, the non-overlapping region 102 has a region in which the weight per unit area of the temperature increasing material 30 is high.

In the sanitary napkin 1 having the pair of flap portions 1w as in the present embodiment, as shown in fig. 6, the region overlapping the flap adhesive portions 83 in the longitudinal direction and the region overlapping the absorbent body 2 in the width direction (the region surrounded by the points a, b, C, and d) is defined as the central region 1C of the sanitary napkin 1. The central region 1C is a region which is assumed to be fixed to the crotch of underwear and to which the excretory opening of the wearer and the vicinity thereof are in contact.

Therefore, it is preferable that the temperature increasing member 30 is not provided in the central region 1C of the sanitary napkin 1 in the widthwise central portion and the temperature increasing members 30 are provided in the widthwise end portions.

By doing so, it is possible to prevent the temperature-elevating material 30 from stimulating the excretory opening (vaginal opening) which becomes sensitive in the physiological cycle and giving a pain to the wearer while giving a comfortable feeling of warmth to the crotch portion of the wearer. Further, since the temperature increasing material 30 is not provided in the central portion in the width direction of the central region 1C, the temperature increasing material 30 can be prevented from inhibiting absorption of the excreted liquid, and the absorption performance of the sanitary napkin 1 can be ensured.

The sanitary napkin 1 (fig. 6 and 8) according to the present embodiment and the sanitary napkin 1 according to the modification shown in fig. 9 have end disposition regions 32 and a central disposition region 33 when the sanitary napkin 1 is viewed from the skin side in the thickness direction. The end portion disposition region 32 is a region in which the temperature increasing material 30 is provided at one end portion in the longitudinal direction of the sanitary napkin 1. Specifically, a region in which the temperature increasing material 30 is provided outside the end 2a of the absorbent body 2 in the longitudinal direction is defined as an end arrangement region 32. The central disposition region 33 is a region in which the temperature increasing material 30 is provided in the central region 1C (region surrounded by the points a, b, C, and d) of the sanitary napkin 1. Therefore, the sanitary napkin 1 can impart a comfortable temperature to the range from the crotch portion to the lower abdomen portion of the wearer or to the range from the crotch portion to the buttocks near the waist portion of the wearer.

However, the present invention is not limited to the above-described embodiment, and the sanitary napkin 1 may not have the central disposition region 33, and the length of the central disposition region 33 in the longitudinal direction may be short. That is, the temperature increasing material 30 may be disposed only on the front side (or the rear side) of the flap adhesive portion 83 in the longitudinal direction, or the temperature increasing material 30 may be disposed in a region partially overlapping the flap adhesive portion 83 in the longitudinal direction.

Further preferably, the maximum length W1 of the end portion disposition region 32 is longer than the maximum length W2 of the central disposition region 33 in the width direction of the sanitary napkin 1. By doing so, the lower abdomen and the buttocks near the waist can be warmed over a wider range in the width direction. The area of the lower abdomen and buttocks near the waist is larger than the area of the crotch. Therefore, by increasing the width of the end portion disposition region 32 in accordance with the shape of the body, comfortable warmth can be more effectively given to the wearer.

Further, as in the central disposition region 33, the band-shaped disposition regions may be disposed with a gap in the width direction. In this case, the distance between the positions 33a and 33b where the temperature raising member 30 is disposed at the position closest to one side and the position closest to the other side in the width direction in the central region 1C of the sanitary napkin 1 is set to the maximum width. Similarly, in the region outside the end 2a of the absorbent body 2 in the longitudinal direction, the distance between the positions 32a and 32b at which the temperature raising material 30 is disposed at the position on the one side and the position on the other side in the width direction is set to the maximum width.

In the present embodiment, the color of the front side sheet 7 on which the temperature raising member 30 is disposed is different from the color of the other materials (the skin side sheet 3, the intermediate sheet 4, the absorbent body 2, and the like) constituting the sanitary napkin 1. The color of the front side sheet 7 can be visually recognized from the skin surface side of the sanitary napkin 1 through the skin side sheet 3. Therefore, when the sanitary napkin 1 is viewed from the skin side in the thickness direction (fig. 8), the color of the end portion disposition region 32 where the front side sheet 7 is disposed is different from the color of the central region 1C of the sanitary napkin 1.

If the color of at least part of the end portion arrangement region 32 is different from the color of the central region 1C in this way, the end portion arrangement region 32 is conspicuous, and the wearer can easily look at the end portion arrangement region 32. Therefore, the wearer can easily recognize that the temperature raising material 30 is provided at the end in the longitudinal direction of the sanitary napkin 1. Specifically, it is preferable that the front side sheet 7 is colored in a warm color (pink, red, orange, yellow, etc.) indicating a temperature feeling, while the color of the main material constituting the sanitary napkin 1 is white. By doing so, the wearer can easily recognize the temperature sensing function of the sanitary napkin 1. However, the color of the front side sheet 7 is not limited to the warm color.

The color of the end portion disposition regions 32 may be different from the color of the central region 1C to such an extent that the end portion disposition regions 32 can be recognized as having a color difference when the user visually recognizes the sanitary napkin 1 from the skin side. Specifically, it is preferable that the color difference when measured by using a color difference meter CR-300 manufactured by konica minolta or an equivalent instrument thereof is 13 or more, or that the difference is 2 or more in a color chart of 24 colors classified according to the ostwald hue circle.

On the other hand, in the sanitary napkin 1 of the present embodiment, the temperature increasing material 30 is also provided in the central region 1C, but the color of the widthwise central portion where the temperature increasing material 30 is not provided is the same as the color of the widthwise end portion where the temperature increasing material is provided (the central disposition region 33).

By doing so, the wearer does not easily recognize that the temperature raising member 30 is disposed in the central region 1C of the sanitary napkin 1. Therefore, it is possible to prevent the wearer from being put on anxiety which may stimulate the crotch portion which becomes sensitive in the physiological cycle by the temperature rising material 30. Therefore, the wearer can be given a feeling of comfort while the wearer is being warmed in the crotch portion.

However, the present invention is not limited to the above-described embodiment, and for example, the color of the end portion arrangement region 32 may be the same as that of the central region 1C, or the entire region of the arrangement region 31 of the temperature elevating material 30 may be a color different from the surrounding. In addition, instead of using the front side sheet 7 as a colored sheet, another material (for example, the skin side sheet 3) located in the end portion arrangement region 32 may be colored.

It is also preferable that the end portion disposition region 32 provided with the temperature elevating member 30 is provided with a mark indicating the front-rear direction of the sanitary napkin 1 when the sanitary napkin 1 is viewed from the skin side in the thickness direction.

By doing so, the sanitary napkin 1 can be attached in the correct front-rear orientation, and the target portion of the body of the wearer can be warmed by the temperature-elevating member 30.

In the case of the sanitary napkin 1 of the present embodiment, it is preferable that a mark indicating that the sanitary napkin 1 is a ventral side is provided in the front end disposition region 32. In fig. 8, as a mark showing the abdomen side of the sanitary napkin 1, a pattern 40 having a bear in the vertical direction is provided in the end portion disposition region 32. At least a part of the bear pattern 40 may be provided in the end arrangement region 32. The vertical direction of the bear pattern 40 extends along the front-rear direction of the sanitary napkin 1, and the head side (upper side) of the bear pattern 40 corresponds to the front side (ventral side) of the sanitary napkin 1. Therefore, a wearer who observes the bear pattern 40 while wearing the sanitary napkin 1 can recognize that the side on which the bear pattern 40 is arranged is the ventral side, and can wear the sanitary napkin 1 so that the front end arrangement region 32 is positioned on the ventral side of the wearer. Therefore, the lower abdomen of the wearer can be warmed by the temperature raising material 30 in the end portion disposition region 32.

In the case of the sanitary napkin 1 of the modification shown in fig. 9, it is preferable that the mark indicating the back side of the sanitary napkin 1 is provided in the rear end disposition region 32. In fig. 9, a mark indicating the back side of the sanitary napkin 1 is provided with a pattern 41 of a bear's foot (croquet) and a character 42 such as "back". The wearer who observes the contents can recognize that the side on which the contents are arranged is the back side, and can wear the sanitary napkin 1 so that the rear end arrangement region 32 is positioned on the back side of the wearer. Therefore, the buttocks of the wearer near the waist can be warmed by the temperature elevating material 30 in the end portion disposition region 32.

The marks 40 to 42 are formed by the compressed part 20, but may be formed by printing. The mark indicating the front side or the back side may be a mark capable of indicating the front and back in the longitudinal direction of the sanitary napkin 1, and may be a pattern having a vertical direction (for example, an animal, a plant, a vehicle, or the like), a character, a numeral, a symbol having a vertical direction, a combination thereof, or the like. The vertical direction of the mark indicating the front side or the back side is not limited to being parallel to the longitudinal direction of the sanitary napkin 1, and may be inclined at an angle of less than 90 degrees with respect to the longitudinal direction of the sanitary napkin 1.

In the sanitary napkin 1 of the present embodiment, marks indicating the front and rear of the sanitary napkin 1 are provided in regions other than the end portion disposition region 32. For example, the sanitary napkin shown in fig. 8 is formed by the compressed part 20 and includes a character 43 such as "HOT" and a design 44 of the foot of a bear. By representing the front and rear of the sanitary napkin 1 by the plurality of marks 40 to 44, the wearer can easily recognize the front and rear of the sanitary napkin 1, and can easily mount the sanitary napkin in the correct front-rear orientation.

Like the sanitary napkin 1 of the modification shown in fig. 10, the sanitary napkin 1 may include a main body 50 (absorbent article main body) having absorption performance and a temperature-raising portion 51 provided with the temperature-raising material 30, and the main body 50 and the temperature-raising portion 51 may be separable. The main body 50 includes at least a skin side sheet 3, a non-skin side sheet 5, and an absorbent body 2. The temperature raising unit 51 includes at least a sheet on which the temperature raising member 30 is disposed. As the temperature increasing portion 51, for example, a front side sheet 7 in which the temperature increasing member 30 is disposed between the skin side sheet 3 and the non-skin side sheet 5 as in the front region 1A of the sanitary napkin 1 shown in fig. 1 can be exemplified. In addition, in order to prevent the absorbent body 2 and the front side sheet 7 from being exposed after the main body portion 50 and the temperature rising portion 51 are separated, the outer peripheral edges 50a and 51a of the respective portions 50 and 51 are preferably sealed by welding or the like. The temperature raising member 30 may be disposed in the main body 10.

The main body portion 50 and the temperature rising portion 51 are provided to the wearer in a state joined by a cut line 52 extending in the width direction. By doing so, the wearer who takes out the sanitary napkin 1 from the separate package can easily separate the main body portion 50 and the temperature rising portion 51, and can attach the temperature rising portion 51 to a body part separated from the main body portion 50. The temperature raising portion 51 may be fixed to underwear of the wearer by an offset prevention portion (not shown) provided on the non-skin side surface, or may be fixed to clothes. The main body 50 and the temperature raising portion 51 may be used without being separated from each other. Therefore, the wearer can apply the temperature raising portion 51 to a desired portion of the body of the wearer to warm the body, and can feel a more comfortable temperature.

Further, the wearer can wear another sanitary napkin by removing only the main body 50 while keeping the temperature raising portion 51 attached. Thus, the wearer can use the sanitary napkin. Conversely, the wearer can remove only the temperature rise portion 51 while keeping the body portion 50 attached. Therefore, the temperature raising portion 51 can be prevented from giving an excessive temperature sensation to the wearer.

In the sanitary napkin 1 shown in fig. 10, the temperature rising portion 51 is disposed offset to the front side in the longitudinal direction with respect to the main body portion 50, but the temperature rising portion 51 is not limited thereto, and may be disposed offset to the rear side in the longitudinal direction and the outer side in the width direction. The temperature raising portion 51 may be disposed on the main body portion 50 so as to overlap in the thickness direction. In this case, when the main body 50 and the temperature increasing portion 51 are separated from each other, it is necessary to prevent the skin side sheet 3 of the main body 50 from being damaged. For example, a male member having a nylon hook and loop fastener provided on the non-skin side surface of the temperature increasing portion 51 is preferable. Further, the material of the displacement prevention section (adhesive) that can be peeled off from the non-skin-side surface of the temperature rise section 51 may be provided in a portion of the skin-side surface of the main body section 50 that does not affect the absorption performance.

Fig. 11 is a perspective view of the pants-type sanitary napkin 1. Fig. 12A is a schematic plan view of the pants-type sanitary napkin 1 in an unfolded and extended state. Fig. 12B is a schematic cross-sectional view of the pants-type sanitary napkin 1. Although the sanitary napkin 1 of the type attached to underwear has been illustrated, the sanitary napkin 1 may be a pants-type sanitary napkin.

The unfolded state is a state in which the joining of both side portions 53e in the width direction of the pants-type sanitary napkin 1 is released and the sanitary napkin 1 is unfolded in the vertical direction. The stretched state refers to a state in which the pants-type sanitary napkin 1 is stretched to such an extent that no wrinkles are formed, and refers to a state in which the pants-type sanitary napkin 1 is stretched to a length in which the dimension of the material constituting the pants-type sanitary napkin 1 is equal to or close to the dimension in a state in which the material is not affected by the stretchable member.

The pants-type sanitary napkin 1 has an exterior member 53 and an absorbent main body 54. As shown in fig. 12B, the exterior member 53 includes a non-stretchable sheet 531 and a stretchable sheet 532 disposed between the non-stretchable sheets folded back in the longitudinal direction. Although not shown, the absorbent main body 20 includes at least a liquid-permeable skin-side sheet, a liquid-impermeable non-skin-side sheet, and an absorbent body. However, the structure of the pants-type sanitary napkin 1 is not limited to the illustrated structure.

Further, it is preferable that the temperature raising member 30 is also disposed on the pants-type sanitary napkin 1. For example, as shown in fig. 12A, it is preferable to provide the temperature increasing material 30 in the width direction on the exterior member 53 on the front side (ventral side), or to provide the temperature increasing material 30 in the longitudinal direction on the front side portion of the absorbent main body 54. By doing so, the wearer of the pants-type sanitary napkin 1 can feel a comfortable feeling of warmth.

The pants-type sanitary napkin 1 is covered with the outer covering member 53 over the waistline, i.e., the lower abdomen and the buttocks of the wearer. Therefore, similarly to the sanitary napkin 1 (fig. 6), in the longitudinal direction of the pants-type sanitary napkin 1 in the unfolded and stretched state, the temperature raising member 30 is preferably provided at least in part in the region 34 from the front end 1a1 of the sanitary napkin 1 to the position separated by 150mm toward the center side, and more preferably, the temperature raising member 30 is provided at least in part in the region 35 from the front end 1a1 of the sanitary napkin 1 to the position separated by 100mm toward the center side. By doing so, the temperature raising member 30 can be disposed in the region of the sanitary napkin 1 corresponding to the lower abdomen of the wearer, and the lower abdomen of the wearer can be warmed.

Further, although not shown, it is preferable that the temperature raising member 30 is provided at least partially in a region from the rear end 1a2 of the sanitary napkin 1 to a position separated by 150mm toward the center side, and more preferably, the temperature raising member 30 is provided at least partially in a region from the rear end 1a2 of the sanitary napkin 1 to a position separated by 100mm toward the center side in the longitudinal direction of the pants-type sanitary napkin 1 in the unfolded and stretched state. By doing so, the temperature-increasing material 30 can be disposed in the region of the sanitary napkin 1 corresponding to the buttocks of the wearer near the waist, and the buttocks of the wearer near the waist can be warmed. However, as long as the pants-type sanitary napkin 1 has the temperature-elevating material 30, the arrangement region 31 of the temperature-elevating material 30 is not limited to the above-described region.

Individual package (absorbent article package) of the sanitary napkin 1

Fig. 13 is a plan view of the packaging material 11 for packaging the sanitary napkin 1, viewed from the outside. Fig. 14A is a plan view of the individually packaged body 10 of the sanitary napkin 1 during unfolding, and fig. 14B is a plan view of the individually packaged body 10 of the sanitary napkin 1 before unfolding.

The individual package 10 includes the sanitary napkin 1, a packaging material 11 for packaging the sanitary napkin 1, and a fastening tape 12. In the individual package 10 shown in the figure, the napkin 1 disposed on the packaging material 11 is folded together with the packaging material 11 at the fold portions F1, F2 extending in the longitudinal direction of the napkin 1 and the fold portions F3, F4 extending in the width direction. However, the method of folding the individual package 10 is not particularly limited, and for example, the individual package may be folded only at the folding portions F1 and F2 extending in the width direction, or only the sanitary napkin 1 may be folded independently of the packaging material 11.

Preferably, the packaging material 11 for packaging the sanitary napkin 1 provided with the temperature-elevating material 30 has the association indicator 13 for associating that the sanitary napkin 1 is provided with the temperature-elevating material 30. The association mark 13 may be any pattern, character, number, or symbol that expresses a temperature sensation. The wrapping material 11 of fig. 13 is provided with a associational mark 13 that can be visually recognized from the outer side surface side of the wrapping material 11. Specifically, as the association indicator 13, characters (expressions) 131 indicating temperature Feeling such as "feeing of Warm", "Keep Warming", "Warm U UP", and the like, and a pattern 132 of a bear's heart are provided on the packaging material 11.

Therefore, the wearer can easily recognize that the wearer feels a warmth by wearing the sanitary napkin 1 by seeing the associated mark 13 of the packaging material 11 when the individual package 10 is unfolded. Therefore, the comfortable temperature feeling given by the temperature rising material 30 is more likely to be felt after wearing the sanitary napkin 1.

Preferably, the association mark 13 is formed by printing, compression of the packaging material 11. The associative mark 13 is not limited to the mark shown in fig. 13, and may be, for example, a number indicating a skin surface temperature assumed by wearing the sanitary napkin 1, a design of a bear wearing a scarf, or a glove. The association mark 13 may be one kind or plural kinds. The association indicator 13 may be visible in a state where the individual package 10 is unfolded, or may be visible from the inner side surface side of the packaging material 11. However, the present invention is not limited to the above-described embodiment, and the packaging material for packaging the sanitary napkin 1 having the temperature elevating material 30 may not have the associative indicator 13.

Package 60 of individual package 10 of sanitary napkin 1

Fig. 15 is a perspective view of the package 60 of the individual package. Fig. 16 is a rear view of the package body 60.

The package 60 includes an individual package 10 in which the sanitary napkin 1 is packaged by the packaging material 11, and a bag 61 for housing the individual package 10. The bag body 61 is a bag-shaped member formed of a film-shaped member containing at least a synthetic resin. In the present embodiment, the film member is formed by bonding a transparent low-density polyethylene Layer (LDPE) and a milky polyethylene layer (PE). The package 60 shown in fig. 15 has a substantially rectangular parallelepiped shape, but the shape of the package is not particularly limited, and may be, for example, a bag shape in which the top and bottom of a cylindrical packaging material are closed.

Further, the bag body 61 of the package 60 preferably has patterns 62 and 63 (hereinafter also referred to as "napkin patterns") indicating the napkin 1, and the napkin patterns 62 and 63 preferably have marks 64 to 66 (hereinafter also referred to as "area marks") indicating areas where the temperature raising materials 30 are arranged. The sanitary napkin patterns 62, 63 and the area marks 64 to 66 are preferably visually recognizable from the outside of the package 60 for more reliable visual recognition by the wearer. In addition, it is preferable that the sanitary napkin patterns 62, 63 and the area marks 64 to 66 are formed on the bag body 61 by printing. In addition, the position of the temperature rising material 30 disposed in the sanitary napkin 1 may not completely coincide with the positions of the area marks 64 to 66 in the sanitary napkin patterns 62 and 63.

Specifically, a sanitary napkin pattern 62 is provided on the front surface (fig. 15) of the bag body 61. Further, as the region mark 64, a lattice pattern is provided in a portion of the napkin pattern 62 corresponding to the region where the front side sheet 7 is disposed, and the portion is colored with a warm color.

Further, a sanitary napkin pattern 63 is also provided on the back surface (fig. 16) of the bag body 61. Further, as the region mark 65, a lattice pattern is provided in a portion of the napkin pattern 63 corresponding to the region where the front side sheet 7 is disposed, the portion is colored with a warm color, and a character of "abdominal heat 10 cm" is provided in the portion. Further, as the region indicator 66, a lattice pattern of a warm color is also provided on the back surface of the bag body 61 at a portion of the napkin pattern 63 corresponding to the region where the temperature raising material 30 is disposed so as to overlap the absorbent body 2. In addition, a character 67 of "having a warming sensation also in an absorption region of 25 cm" is provided outside the napkin pattern 63.

Therefore, when the wearer sees the napkin patterns 62 and 63 and the region marks 64 to 66 at the time of purchase and opening of the package 60, the wearer can easily recognize that the napkin 1 is warmed by wearing the napkin and can easily recognize the warm portion of the napkin 1. Therefore, the comfortable temperature feeling given by the temperature rising material 30 is more likely to be felt after wearing the sanitary napkin 1. Further, the wearer can appropriately attach the warm portion of the sanitary napkin 1 to the portion of the wearer's body to be warmed (for example, the lower abdomen), and the sanitary napkin 1 can be easily and accurately attached.

However, the present invention is not limited to the above embodiment, and the individually packaged sanitary napkin 1 having the temperature raising member 30 may be housed in a package 60 having no sanitary napkin patterns 62 and 63 and no region marks 64 to 66.

Further, the bag body 61 of the package 60 preferably has an associated mark that is visible from the outside to associate the function of the temperature raising material 30. In the present embodiment, "HOT warm ℃" of the product name label 68 is also a associative label. The "HOT" and "warm" of the "HOT warm ℃" are associated with the warming function of the temperature rise material 30. Specifically, the front surface (fig. 15) of the bag body 61 is colored in a darker color such as black in the region outside the "HOT warm ℃" as an associated logo, the edge of the character "HOT warm ℃" is colored in red (a predetermined color), and silver granular metal is pressure-bonded to the inside of the character "HOT warm ℃" by stamping (japanese: foil pressing し processing). The metal to be pressed by hot stamping may be in the form of particles, or may be in any form such as a sheet or a block. As a result, the metal on the inside of the "HOT warm ℃" diffusely reflects the red color on the edge of the "HOT warm ℃" character, and the "HOT warm ℃" character is a character having a three-dimensional effect, so that the wearer can easily look at the associative logo, and the wearer can easily recognize the function of the temperature sensitive agent 30. Further, by making the region outside the "HOT warm ℃" dark color such as black, the text of the "HOT warm ℃" can be made more conspicuous.

Temperature-raising member 70

Fig. 17A and 17B are explanatory views of the individual package 72 of the temperature raising member 70. Fig. 17A is a plan view of the individual package 72 in the expanded state, and fig. 17B is a plan view of the individual package 72 before expansion.

Fig. 18 is an explanatory view of an individual package 82 of a sanitary napkin 80 (absorbent article), and is a plan view of the individual package 82 in an unfolded state.

In the sanitary napkin 1 shown in fig. 10, the main body portion 50 having the absorption performance and the temperature-elevating portion 51 provided with the temperature-elevating material 30 are provided to the wearer in a state of being separably joined. The sanitary napkin 80 (fig. 18) having the absorbent performance and the temperature-elevating member 70 (fig. 17A) having the temperature-elevating material 30 may be separately packaged and provided to the wearer in a separated state.

The sanitary napkin 80 may be provided with at least a liquid-permeable skin-side sheet, a liquid-impermeable non-skin-side sheet, and an absorbent body 2 provided between the skin-side sheet and the non-skin-side sheet. The sanitary napkin 80 may be provided with the temperature-elevating material 30 or may not be provided with the temperature-elevating material 30.

The temperature-increasing member 70 may be used together with the sanitary napkin 80 and may be provided with at least a sheet on which the temperature-increasing material 30 is disposed. Specifically, as in the front region 1A of the sanitary napkin 1 shown in fig. 1, a configuration can be exemplified in which the front side sheet 7 having the temperature raising member 30 disposed therein is provided between the skin side sheet 3 and the non-skin side sheet 5. The shape of the temperature increasing member 70 shown in fig. 17A in a plan view is a substantially rectangular shape in which both end portions in the longitudinal direction are bent outward, but is not particularly limited.

The sanitary napkin 80 and the temperature-elevating member 70 are folded together with the respective wrapping materials 81 and 71 at the fold portion F to form the individual packages 72 and 82. It is preferable that the individual package 82 of the sanitary napkin 80 and the individual package 72 of the temperature raising member 70 are housed in a bag body of the same package. That is, it is preferable that the sanitary napkin 80 and the temperature-elevating member 70 are provided to the wearer in a kit. By doing so, the wearer can use the temperature-increasing member 70 together with the sanitary napkin 80 when feeling dysmenorrhea, cold or the like, and can feel comfortable warmth. On the other hand, the wearer can use only the sanitary napkin 80 without feeling dysmenorrhea, cold or the like, and the body of the wearer can be prevented from being excessively warmed.

Further, only the individual package 72 of the temperature increasing member 70 may be provided to the wearer while being contained in a bag body. In this case, the wearer can use the temperature increasing member 70 together with a normal sanitary napkin (a sanitary napkin preferred by the wearer and a sanitary napkin suitable for use in daily use, night use, or the like) as appropriate.

The temperature-increasing member 70 may be used in a state of being bonded to the sanitary napkin 80 or a normal sanitary napkin. For example, the temperature increasing member 70 may be used in a state in which a displacement preventing portion (not shown) provided on the non-skin side surface thereof is joined to the sanitary napkin 80. Further, a nylon hook and loop fastener may be provided on the non-skin side surface of the temperature increasing member 70 so that the temperature increasing member 70 can be peeled off and joined to the sanitary napkin 80 and the like without damaging the sanitary napkin 80 and the like.

The embodiments of the present invention have been described above, but the above embodiments are provided to facilitate understanding of the present invention, and the present invention is not to be construed as being limited thereto. It is to be understood that the present invention can be modified and improved without departing from the gist thereof, and equivalents thereof are also included in the present invention.