Male incontinence protector and method of manufacturing a male incontinence protector
阅读说明:本技术 男性失禁防护物和制造男性失禁防护物的方法 (Male incontinence protector and method of manufacturing a male incontinence protector ) 是由 M·鲁登 P·勒恩贝里 于 2017-07-07 设计创作,主要内容包括:本发明涉及一种男性失禁防护物(1),其包括流体不可渗透的底片(2)、流体可渗透的顶片(3)和设置在所述底片(2)和所述顶片(3)之间的吸收体(4),其中,当所述使用者穿戴失禁防护物(1)时,所述顶片(3)面向使用者,所述防护物(1)具有沿纵轴线(Y1)的纵向延伸范围一和沿横轴(X1)的横向延伸范围,所述横轴线(X1)将所述防护物(1)划分为上部区域(5)和下部区域(6),所述上部区域(5)沿横轴线(X1)具有的最大延伸范围大于下部区域(6)沿所述横轴线(X1)的最大延伸范围。此外,所述吸收体(4)包括以堆叠构造布置的主芯(4’)和副芯(4”),其中所述主芯(4’)在XY平面内的面积大于所述副芯(4”)的面积,以及所述副芯(4”)形成有至少部分地大致平行于所述纵轴线(Y1)的侧边缘(28、29)。本发明还涉及一种制造男性失禁防护物(1)的方法。(The invention relates to a male incontinence protector (1) comprising a fluid impermeable backsheet (2), a fluid permeable topsheet (3) and an absorbent body (4) arranged between the backsheet (2) and the topsheet (3), wherein the topsheet (3) faces the user when the incontinence protector (1) is worn by the user, the protector (1) having a longitudinal extension one along a longitudinal axis (Y1) and a transverse extension along a transverse axis (X1), the transverse axis (X1) dividing the protector (1) into an upper region (5) and a lower region (6), the upper region (5) having a maximum extension along the transverse axis (X1) that is greater than the maximum extension of the lower region (6) along the transverse axis (X1). Furthermore, the absorbent body (4) comprises a primary core (4') and a secondary core (4 ") arranged in a stacked configuration, wherein the area of the primary core (4') in the XY-plane is larger than the area of the secondary core (4"), and the secondary core (4 ") is formed with side edges (28, 29) at least partially substantially parallel to the longitudinal axis (Y1). The invention also relates to a method of manufacturing a male incontinence guard (1).)
1. A male incontinence protector (1) comprising a fluid impermeable backsheet (2), a fluid permeable topsheet (3) and an absorbent body (4 ") arranged between the backsheet (2) and the topsheet (3), wherein the topsheet (3) faces the user when the incontinence protector (1) is worn by the user, the protector (1) having a longitudinal extension along a longitudinal axis (Y1) and a transverse extension along a transverse axis (X1), the transverse axis (X1) dividing the protector (1) into an upper region (5) and a lower region (6), the maximum extension of the upper region (5) along the transverse axis (X1) being greater than the maximum extension of the lower region (6) along the transverse axis (X1), characterized in that the absorbent body (4) comprises a primary core (4') and a secondary core (4") arranged in a stacked configuration, wherein the area of the primary core (4') in the XY plane is greater than the area of the secondary core (4') and the secondary core (4') is formed with side edges (28, 29), the side edges (28, 29) being at least partially generally parallel to the longitudinal axis (Y1).
2. Male incontinence guard (1) according to claim 1, wherein the side edges (28, 29) define fold lines (22, 24) for folding the guard (1) in the transverse direction of the guard (1).
3. Male incontinence protector (1) according to claim 1 or 2, wherein the length of the generally parallel side edges (28, 29) is in the range of 10-70%, preferably 15-60%, most preferably 20-50% of the maximum extension of the male incontinence protector (1) in its longitudinal direction.
4. Male incontinence guard (1) according to any of the preceding claims, wherein the width of the secondary core (4 ") between the generally parallel side edges (28, 29) is in the range of 25-60%, and preferably 35-55% of the maximum width of the guard (1).
5. Male incontinence guard (1) according to any of the preceding claims, wherein the primary core (4') has an outer edge generally following the outer edge of the guard (1) and defining an edge zone (9), said edge zone (9) having a generally equal width along the entire outer edge of the guard (1).
6. Male incontinence protector (1) according to any of the preceding claims, wherein the transverse axis (X1) extends between a first lower corner point (10) and a second lower corner point (11) defining two outermost points of the protector (1), the protector (1) having a first width (w1) between the two outermost points; the upper region (5) comprises an inwardly concave curved portion (12), the inwardly concave curved portion (12) extending between a first upper corner point (13) and a second upper corner point (14) and having an arcuate shape, the upper corner points (13, 14) defining a second width (w 2); wherein the first width (w1) is larger than the second width (w2), and wherein the first lower corner point (10) and the first upper corner point (13) and the second lower corner point (11) and the second upper corner point (14) are connected by outer edges (15, 17), respectively.
7. The male incontinence guard (1) as claimed in claim 6, said guard (1) being formed with a tapering shape as seen from the lower corner points (10, 11) and along the lower region (6).
8. Male incontinence guard (1) according to claim 6 or 7, wherein the inwardly concave curved portion (12) defines an outer boundary edge (18) extending between the upper corner points (13, 14), and wherein the outer boundary edge (18) is located inside an imaginary transverse line (X2) extending between the upper corner points (13, 14).
9. The male incontinence guard (1) according to claim 8, wherein said outer boundary edge (18) has a radius (r1) in the range of 60-1400 mm.
10. The male incontinence protector (1) according to any of claims 6-9, wherein the ratio between the first width (w1) and the second width (w2) is in the range of 30-80%.
11. The male incontinence protector (1) according to any of claims 6-10, wherein said first width (w1) is in the range of 110 and 280 mm.
12. Male incontinence guard (1) according to any of claims 6-11, wherein the second width (w2) is in the range of 50-151 mm.
13. Male incontinence guard (1) according to any of claims 6-12, wherein the ratio between the distance (d1) defined by an imaginary longitudinal line (Y2) parallel to the longitudinal axis (Y1) and extending from either of the upper corner points (13, 14) to the transverse axis (X1) and the distance (d2) extending from either of the lower corner points (10, 11) to the longitudinal line (Y2) is in the range of 0.25-4.0.
14. Male incontinence guard (1) according to claim 13, wherein a straight line (16) is defined extending through the lower corner point (10) and the upper corner point (13), and wherein an angle (a) is defined between the straight line (16) and the imaginary longitudinal line (Y2), the angle a being in the range of 12-78 degrees.
15. The male incontinence protector (1) as claimed in claim 14, wherein a measurement (d4) is defined as the distance between the straight line (16) and the largest outer extension of the incontinence protector (1), said measurement (d4) being in the range of 2-10mm, or wherein the measurement (d4) is less than 25% of the distance between the first lower corner point (10) and the first upper corner point (13).
16. The male incontinence protector (1) according to any of claims 6-15, wherein the maximum recess depth (d3) of the inwardly concave curved portion (12) does not extend below the transverse axis (X1).
17. Male incontinence guard (1) according to claim 16, wherein the maximum recess depth (d3) is in the range of 2-30 mm.
18. Male incontinence protector (1) according to any of claims 6-17, wherein the lower region (6) of the protector (1) comprises a lower edge (19) having a convex arcuate shape with a radius (r2) defining a ratio of 0.9-1.1 to the radius (r1) of the inwardly concave curved portion (12).
19. Male incontinence guard (1) according to any of claims 6-18, wherein the outer side edges (15, 17) are generally straight.
20. Male incontinence guard (1) according to any of the preceding claims, wherein at least one of the primary core (4') and the secondary core (4 ") comprises a superabsorbent material.
21. The male incontinence guard (1) according to claim 20, wherein said superabsorbent material is a superabsorbent polymer.
22. The male incontinence guard (1) according to claim 20, wherein the superabsorbent material is in the form of a foam.
23. Male incontinence guard (1) according to any of the preceding claims, wherein the guard (1) is arranged with elasticated elements (20) arranged along the outer edges (9) of the lower region (6) along the respective outer edges of the lower region (6).
24. Male incontinence guard (1) according to claim 23, wherein the elasticated element (20) is in the form of an elasticated film attached to the guard (1').
25. Male incontinence guard (1) according to claim 23, wherein the elasticated elements are in the form of elastic threads attached to the guard (1).
26. Male incontinence guard (1) according to claim 23, wherein the elasticated element is in the form of an elastic foam attached to the guard (1).
27. Male incontinence guard (1) according to claim 23, wherein the elasticated element is in the form of an elastic laminate attached to the guard (1).
28. A method of manufacturing a male incontinence protector (1), the male incontinence protector (1) having a longitudinal extension along a longitudinal axis (Y1) and a transverse extension along a transverse axis (X1), the transverse axis (X1) dividing the protector (1) into an upper region (5) and a lower region (6), the method comprising:
-providing a fluid impermeable backsheet (2);
-providing a fluid permeable topsheet (3); and
-providing an absorbent body (4) between the backsheet (2) and the topsheet (3);
the method is characterized by comprising the following steps:
-providing the absorbent body (4) by arranging a primary absorbent core (4') and a secondary absorbent core (4 ") in a stacked configuration, wherein the area of the primary core (4') in the XY plane is larger than the area of the secondary core (4");
-folding a first portion (21) of the incontinence protector (1) towards the centre of the incontinence protector (1) and a second portion (23) of the incontinence protector (1) towards the centre of the incontinence protector (1) so that it at least partially covers the first portion (21), wherein the folding is carried out in a transverse direction of the protector (1) and along a folding line (22, 24) defined by side edges (28, 29) of the secondary core (4') which are at least partially generally parallel to the longitudinal axis (Y1); and
-folding the bottom (25) upwards to partially cover both the first portion (21) and the second portion (23).
29. Method according to claim 28, wherein the bottom (25) is folded while a distance (d5) is formed between the top edge (26) of the incontinence protector (1) and the upper edge (27) of the bottom (25), which distance (d5) is at most ± 30 mm.
30. A package consisting of a plurality of individually packaged absorbent articles (1), said articles (1) being manufactured according to any one of claims 25-26.
31. A package according to claim 30, wherein each article (1) is individually packaged.
Technical Field
The present invention relates to a male incontinence guard comprising a fluid-impermeable backsheet, a fluid-permeable topsheet and an absorbent body arranged between the backsheet and the topsheet, wherein the topsheet faces the user when the incontinence guard is worn by the user. The shield has a longitudinal extent along a longitudinal axis and a transverse extent along a transverse axis, the transverse axis dividing the shield into an upper region and a lower region, the upper region having a greater maximum extent along the transverse axis than the lower region.
The invention also relates to a method for manufacturing a male incontinence protector having a longitudinal extension along a longitudinal axis and a transverse extension along a transverse axis, which divides the incontinence protector into an upper region and a lower region. The method comprises the following steps: providing a fluid impermeable backsheet; providing a fluid permeable topsheet; an absorbent body is provided between the backsheet and the topsheet.
Background
Absorbent articles, for example in the form of incontinence guards, baby diapers and sanitary napkins, are well known. The general purpose of such absorbent articles is to absorb, distribute and store various types of body exudates while providing the wearer with a high level of comfort and dryness during use of the absorbent article. Moreover, such absorbent articles prevent the wearer from soiling garments with body exudates.
An absorbent article in the form of an incontinence protector is used to protect the wearer from urine leakage. For male incontinence guards, it is clear that these articles are configured for use by male users and are designed to cover the genital organs to prevent unwanted leakage of urine. Men without limb impairments generally prefer not to use an incontinence protector in the form of a diaper, since it is considered bulky and too large to wear and cannot always be used with conventional clothing. Instead, male incontinence guards have been developed specifically for mildly incontinent men. Such incontinence guards are relatively thin and shaped in such a way as to cover the male genital organ during use. Such incontinence guards can be designed to have an absorption capacity which is sufficient to absorb fluids which are intended to be released into the absorbent article when worn.
A known male incontinence protector of the above-mentioned type is known from patent document WO 86/06620.
There are certain requirements for male incontinence guards. Obviously, the incontinence protector should be designed such that it is worn in the ordinary underwear of the user and provides a measure of protection against light urine leakage. For this reason, known male incontinence guards are shaped to provide an optimal fit to the underwear and body of the user. Furthermore, such incontinence guards comprise a core of absorbent material arranged along the longitudinal axis of the product to absorb urine.
In addition, male incontinence guards often comprise a soft topsheet to give the wearer a feeling of freshness and dryness. The shield should also be relatively thin and should be designed to be unobtrusive so as to not be generally visible through the wearer's conventional clothing during use. Finally, it may be provided with suitable adhesive means to enable it to be attached to the undergarment of the wearer. The shield also needs to be easily bent and shaped to follow the wearer's anatomy during use.
Even though the article disclosed in WO 86/06620 fulfils the basic requirements regarding prevention of light urine leakage, there is still a need for further improvements in this technical field. First, there is a need for a male incontinence guard that can securely fit and hold in place in male undergarments of different anatomies. In particular, the incontinence protector must be positioned to extend downwardly from under the abdomen of the user in order to cover the genital organs in a safe manner.
Secondly, it is required that the incontinence protector, when in place, must assume the correct intended shape to provide the intended protection against incontinence, even if the user walks around and the user sits and stands.
It has been found that known male incontinence guards are not always suitable for fitting correctly under the abdomen of the user and that they do not always assume the correct intended shape when they are fitted in place. This means that optimum incontinence protection cannot always be guaranteed.
Furthermore, there is a need in connection with a cost-effective manufacturing method for an incontinence guard.
Disclosure of Invention
According to the present invention, a male incontinence guard is provided which is configured to solve the above-mentioned problems in the art related to the prior art. In particular, the incontinence protector is configured to ensure an optimal fit with the wearer in its intended position during use.
According to the invention, this object is achieved by a male incontinence protector comprising a fluid-impermeable backsheet, a fluid-permeable topsheet and an absorbent body arranged between said backsheet and said topsheet, wherein said topsheet faces the user when the incontinence protector is worn by the user, said protector having a longitudinal extension along a longitudinal axis and a transverse extension along a transverse axis, said transverse axis dividing said protector into an upper region and a lower region, the maximum extension of said upper region along the transverse axis being greater than the maximum extension of said lower region along the transverse axis. Further, the absorbent body includes a primary core and a secondary core arranged in a stacked configuration, wherein the primary core has an area in the XY plane larger than that of the secondary core, and the secondary core is formed with side edges at least partially substantially parallel to the longitudinal axis.
The present invention provides certain advantages. First, the present invention meets the need to securely fit and hold an incontinence protector in place in men's undergarments of different anatomies. Secondly, the invention is advantageous in connection with the manufacture of an incontinence protector in that the secondary core is formed with side edges which are at least partly substantially parallel to said longitudinal axis. Such an embodiment is advantageous during the manufacture of the incontinence protector, as it allows for an accurate and efficient folding of each protector during the manufacturing process.
According to one embodiment, the side edges are configured as folding lines for folding the shield in a lateral direction of the shield.
According to another embodiment, the length of the substantially parallel side edges is in the range of 10-70%, preferably 15-60% and most preferably 20-50% of the maximum extension of the male incontinence protector in its longitudinal direction.
According to another embodiment, the width of the secondary core between said substantially parallel side edges is in the range of 25-60% and preferably 35-55% of the maximum width of the shield.
According to one embodiment, the primary core has an outer edge that generally follows the outer edge of the shield and defines an edge zone having a width that is substantially equal along the entire outer edge of the shield.
According to one embodiment, the transverse axis extends between a first lower corner point and a second lower corner point, the first lower corner point and the second lower corner point defining two outermost points of the shield, the shield having a first width between the two outermost points. The upper region includes an inwardly concave curvature extending between a first upper corner point and a second upper corner point and having an arcuate shape, the upper corner points defining a second width. Wherein the first width is greater than the second width, and wherein the first lower corner point and the first upper corner point and the second lower corner point and the second upper corner point are connected by outer edges, respectively.
It has been found that the provision of the above-mentioned inwardly concave curved portion allows the incontinence protector to be positioned such that it extends downwardly from under the abdomen of the user, thereby covering the genital organs in a secure manner. In particular, the geometry of the incontinence protector according to the invention, as defined by the above-mentioned upper and lower corner points, provides a safe positioning of the protector even when the user repeatedly sits down and stands, while providing the intended protection against incontinence.
According to one embodiment, the incontinence protector is formed in a tapering shape, seen from the lower corner points and along the lower area. This makes it possible to position the shield on the male genital organ in the correct way during use.
According to another embodiment, the inwardly concave curved portion as described above defines an outer boundary edge extending between the upper corner points, and wherein the outer boundary edge is located inside an imaginary transverse line extending between the upper corner points. The radius of the outer boundary edge is in the range of 60-1400 mm.
Also, the relationship between the first width and the second width is in the range of 30-80%. According to one embodiment, the first width is in the range of 110-280 mm. Also, the second width is in the range of 50-151 mm.
Furthermore, according to an embodiment, a ratio between a distance defined by imaginary longitudinal lines parallel to the longitudinal axis and extending from any of the upper corner points to the transverse axis and a distance extending from any of the lower corner points to the longitudinal lines is in the range of 0.25-4.0.
According to another embodiment a straight line is defined extending through the lower corner point and the upper corner point, wherein an angle is defined between the straight line and the imaginary longitudinal line, the angle being in the range of 12-78 degrees.
According to another embodiment, a measurement value is defined as the distance between the straight line and the largest outer extension of the incontinence protector, which measurement value is in the range of 2-10mm, or wherein the measurement value is less than 25% of the distance between the first lower corner point and the first upper corner point.
According to a further embodiment, the maximum recess depth d3 of the inwardly concave curved portion does not extend below the transverse axis. Preferably, the maximum recess depth d3 is in the range of 2-30 mm.
According to one embodiment, the lower region comprises a lower edge having a convex arcuate shape, the radius of the lower edge being defined as a ratio of 0.9-1.1 to said radius of said inwardly concave curved portion.
According to one embodiment, at least one of the primary core and the secondary core comprises superabsorbent material.
According to one embodiment, the shield is arranged with elasticated elements arranged along the outer edges of the lower region along each outer edge of the lower region.
Furthermore, the above object of the invention is achieved by a method for manufacturing a male incontinence protector having a longitudinal extension along a longitudinal axis and a transverse extension along a transverse axis, the transverse axis dividing the protector into an upper region and a lower region, the method comprising: providing a fluid impermeable backsheet; providing a fluid permeable topsheet; and providing an absorbent body between the backsheet and the topsheet. Furthermore, the method comprises the steps of: providing the absorbent by arranging a primary absorbent core and a secondary absorbent core in a stacked configuration, wherein the area of the primary core in the XY plane is larger than the area of the secondary core; folding a first portion of the incontinence protector towards the centre of the incontinence protector and a second portion of the incontinence protector towards the centre of the incontinence protector such that it at least partially covers the first portion, wherein the folding is performed in the transverse direction of the protector and along a fold line defined by side edges of the secondary core which are at least partially substantially parallel to the longitudinal axis; and folding the bottom portion upward to partially cover both the first portion and the second portion.
Further advantages and advantageous features of the invention are disclosed in the following description and in the dependent claims.
Drawings
The invention will be described in more detail below with reference to the figures shown in the accompanying drawings.
Figure 1 shows a top view of a male incontinence guard according to an embodiment of the invention,
figure 2 shows a cross-sectional view of the male incontinence protector taken along line II in figure 1,
figure 3 shows a method for folding a male incontinence protector during manufacture in a first method step,
fig. 4 shows a method for folding a male incontinence protector in a second method step in a manufacturing process, an
Fig. 5 shows a method for folding a male incontinence protector in a third process step in a manufacturing process.
Detailed Description
Various aspects of the disclosure are described more fully hereinafter with reference to the accompanying drawings. The embodiments disclosed herein may, however, be embodied in many different forms and should not be construed as limited to the aspects set forth herein.
Referring first to fig. 1, a top view of an absorbent article in the form of a
Fig. 1 shows an
The topsheet 3 is arranged on the surface of the
According to a further embodiment, one or more additional layers can be provided in the
The above-mentioned layers of the
As shown in fig. 1, the
Fig. 2 is a cross-sectional view taken along the transverse axis X1 shown in fig. 1. The individual layers 2, 3, 4', 4 "forming part of the
According to one embodiment, the backsheet 2 consists of a fluid impermeable and breathable layer, for example a polymeric film, such as a film of polyethylene or polypropylene. According to various embodiments, materials that can be used to make the backsheet 2 include thin and flexible fluid impermeable plastic films, or fluid impermeable nonwovens, fluid impermeable foams, and fluid impermeable laminates.
According to the embodiment shown in the figures, the backsheet 2 is formed of a single layer, but may alternatively be formed of a multilayer structure, i.e. a laminate, wherein at least one layer is fluid impermeable. Further, the backsheet 2 may optionally be elastic in any direction. In addition, backsheet materials which are not completely fluid-impermeable but only resistant to fluid penetration may be used, in particular in cases where relatively small amounts of urine are intended to be absorbed by the
Furthermore, according to one embodiment, the topsheet 3 is formed from a fluid permeable nonwoven fabric or film made of thermoplastic synthetic fibers. The topsheet 3 has sufficient fluid permeability to allow discharged body fluids, such as urine, to pass through the thickness of the topsheet 3. Further, the topsheet 3 is suitably made of a material which is compliant and soft to the wearer's skin.
According to different embodiments, the topsheet 3 may be manufactured from various web materials, such as woven and nonwoven webs and films, foams or combinations of the above. The nonwoven material for the topsheet 3 may be, for example, a carded resin bond, a carded through-air bond, a spunbond-meltblown-spunbond material, a carded hydroentangled material or a carded thermal bond. The topsheet 3 may also have elastic properties that make it stretchable.
According to another embodiment, the top sheet 3 may be in the form of a perforated plastic film, which then serves as a liquid-permeable sheet.
As shown in fig. 1 and 2, the rear side of the backsheet 2 is provided with fastening means for fastening the
According to alternative embodiments, the
Furthermore, according to the embodiment shown in fig. 1 and 2, the
One or both of the cores 4', 4 "may comprise fibers of cellulosic fluff pulp. According to alternative embodiments, the cores 4', 4 "may be made of any suitable absorbent or fluid-absorbent material known in the art, such as foam, fibrous wadding, cellulose-free SAP laminate and similar materials.
According to another embodiment, each absorbent core 4', 4 "comprises a suitable amount of superabsorbent particles. Such superabsorbent materials are well known in the art of absorbent articles and are composed of water-swellable and water-insoluble materials capable of absorbing large amounts of fluid when forming hydrogels. Conventional superabsorbent materials are capable of absorbing at least 10 times their own weight in fluid. According to one embodiment, the amount of said superabsorbent particles in each core 4', 4 "is independently at least 10 wt%, such as at least 25 wt%, such as at least 50 wt%, such as at least 75 wt% up to 100 wt%, i.e. relative to the total weight of the respective absorbent core 4', 4".
The superabsorbent is incorporated into the material of the absorbent core 4, i.e. into one or both of the primary 4' and secondary 4 "cores, or is arranged as a layer which is fixed to the substrate by means of an adhesive or a fixing layer. The absorbent core 4 may further incorporate components for improving its performance. Some examples of such components are binder fibers, fluid dispersing materials, fluid collecting materials, and the like, as known in the art. According to one embodiment, the mixture of cellulosic fluff pulp and superabsorbent particles is mixed in a substantially homogeneous manner throughout the absorbent core 4.
In one embodiment, the amount of superabsorbent particles relative to the total weight of the absorbent core is different between the primary core 4' and the secondary absorbent core 4 ". For example, the amount of superabsorbent particles in the secondary absorbent core 4 "relative to the total weight of the core may be higher, e.g. at least 25% higher, e.g. at least 50% higher or at least 100% higher, than the amount of superabsorbent particles in the secondary absorbent core 4".
According to further embodiments, the absorbent core 4 may be a layered structure of laminates with the same or different materials. The absorbent layer, i.e. the two cores 4', 4 ", may have a uniform thickness or the thickness may vary in different parts of the layer. Also, the basis weight and composition of the absorbent core 4 may vary within such an absorbent layer.
Fig. 1 shows a view of the side of an
Furthermore, as mentioned above, the backsheet 2 and the topsheet 3 are connected to each other along an edge region 9, which edge region 9 extends around the periphery of the
Furthermore, the secondary core 4 ″ is formed with side edges 28, 29 which are at least partially substantially parallel to the longitudinal axis Y1. As shown in fig. 1, the side edges 28, 28 are connected to tapered portions of the secondary core 4 ", the end regions of which are relatively close to the edges of the lower region 6. The purpose of the configuration with side edges 28, 29 is to simplify the manufacturing process when the
The
With reference to fig. 1, it is noted that the lower corner points 10, 11 may, according to different embodiments, consist of different shapes and roundness, for example softly rounded shapes or sharper corner shapes.
Furthermore, the upper region 5 comprises an inwardly concave curved portion 12 extending between a first upper corner point 13 and a second upper corner point 14. The curved portion 12 has a substantially arcuate shape extending into the upper region 5. The distance between the upper corner points 13, 14 in the transverse direction is defined as a second width w 2.
The first lower corner points 10 and the first upper corner points 13 are connected by a first outer edge 15, which first outer edge 15 has an outward and slightly rounded shape according to this embodiment. An imaginary straight line 16 extending through the first lower corner point 10 and the first upper corner point 13 may also be defined. Similarly, the second lower corner point 11 and the second upper corner point 14 are connected by a second outer side edge 17, which second outer side edge 17 also has an outward and slightly rounded shape. The first and second outer side edges 15, 17 extend outwardly in the direction of the transverse axis X1, i.e. seen from the upper corner points 13, 14 to the lower corner points 10, 11.
As shown in fig. 1, the first width w1 is greater than the second width w2, i.e. the lower corner points 10, 11 define the laterally outermost points of the
In summary, the
The purpose of the construction of the
The
According to the embodiment shown in fig. 1, the inwardly concave curved portion 12 defines an outer boundary edge 18 extending between the two upper corner points 13, 14. The outer boundary edge 18 lies inside an imaginary transverse line X2 substantially parallel to the transverse axis X1 and extends between the upper corner points 13, 14.
With reference to the embodiment shown in fig. 1 and 2, it is noted that the radius r1 of the outer boundary edge 18 is in the range of 60-1400mm, preferably in the range of 120-500 mm.
Also, the ratio of the value of the first width w1 to the value of the second width w2 is in the range of 30-80%, preferably in the range of 40-75%. With respect to the actual measurements of the first width w1 and the second width w2, it may be noted that the first width w1 is in the range of 110-280 mm. Likewise, the second width (w2) is in the range of 50-151 mm.
Furthermore, according to an embodiment, the ratio between the distance d1 defined by an imaginary longitudinal line Y2 parallel to the longitudinal axis Y1 as shown in fig. 1 and extending from any of said upper corner points 13, 14 to the transverse axis X1 and the distance d2 extending from any of said lower corner points 10, 11 to said imaginary longitudinal line Y2 is in the range of 0.25-4.0, preferably in the range of 0.5-2.0.
With further reference to fig. 1, a line 16 may be defined extending through the first lower corner point 10 and the first upper corner point 13. An angle alpha may then be defined between said straight line 16 and said imaginary longitudinal line Y2. The angle alpha is in the range of 12-78 degrees, preferably in the range of 22-68 degrees.
Furthermore, as shown in the figures, the lower region 6 of the
Furthermore, the invention may alternatively be arranged such that the inwardly concave curved portion 12 has a geometry which is not equal to a circle, i.e. such that it cannot be defined by a radius. In this case, the maximum concave depth d3 of the inwardly concave curved portion 12 may be defined. According to one embodiment, the curved portion 12 does not extend below said transverse axis X1. Furthermore, the maximum recess depth d3 is in the range of 2-30mm, preferably in the range of 2-20 mm.
A further measured value d4 can be defined as the distance between the above-mentioned straight line 16 extending through the first lower corner point 10 and the first upper corner point 13 and the largest extension of the upper left corner of the
As mentioned above, the
Furthermore, according to the embodiment shown in fig. 1, the
The method for manufacturing the
First, with reference to fig. 3, a first (left-hand in the figure) portion of the
In the previously described folding step, the side edges 28, 29 of the secondary core 4 "may be used to configure or define the fold lines 22, 24 such that the edges 28, 29 serve as a rigid structure of support to facilitate the folding process and to help achieve the fold lines 22, 24 substantially parallel to the longitudinal centerline. Further, the folding is preferably performed at or near the side edges so that the secondary core is not folded over itself, thereby reducing the thickness of the folded article and facilitating any subsequent folding steps and packaging of the folded article.
Finally, as shown in fig. 5, the bottom portion 25 is folded upwardly along a fold line substantially parallel to the transverse centerline X1, thereby partially covering the
In the folded state, as shown in fig. 5, the top edge 26 may extend beyond the edge 27 of the bottom (given a positive d5), or the edge 27 of the bottom may extend beyond the top edge (not shown in fig. 5, given a negative d 5). According to one embodiment, the distance d5 is at most ± 30mm, preferably at most ± 10 mm. By folding the
Preferably, a plurality of
Figure 1 shows an embodiment of the present invention in which two absorbent cores are used, namely a primary absorbent core 4' and a secondary absorbent core 4 ". As mentioned, this arrangement is particularly intended to simplify the manufacturing process described above, i.e. with respect to the folding process described with reference to fig. 3-5. To this end, the secondary absorbent core 4 "is formed with side edges 28, 29 that are at least partially generally parallel to the longitudinal axis Y1. Moreover, according to another embodiment, the position of the side edges 28, 29 substantially corresponds to the fold lines 22, 24, as shown for example in figure 4 and described above, i.e. for folding the
According to one embodiment, the length of the side edges 28, 29 is in the range of 10-70%, preferably 15-60% and most preferably 20-50% of the maximum extension of the
The invention is not limited to this embodiment but may be varied within the scope of the appended claims. For example, the particular shape of the
Furthermore, as mentioned above, the materials and dimensions used to form the different layers of the
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