JP2018093985A - Absorbent article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an absorbent article capable of enhancing flexibility in an edge of a three-dimensional gathering.SOLUTION: Out of plural three-dimensional elastic members 62, a three-dimensional elastic member 62 which has a minimum distance from an inside edge is a tip end elastic member 62a. The tip end elastic member 62a has a tip end fixing region R1a having tip end fixing parts R1a1 which are fixed to a body part 61a of a side sheet and a folding part by an adhesive material. Each of the tip end fixing parts R1a1 is positioned on each end part out of two end parts in a first direction D1 in the tip end fixing region R1a. The tip end fixing region R1a has a non-fixing part R1a2 which is not fixed to the body part 61a and the folding part.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an absorbent article such as a disposable diaper.

  As a disposable diaper which is an example of an absorbent article, a pants-type diaper and a tape-type diaper are known. Each of the pants-type diaper and the tape-type diaper is located at an absorbent main body that absorbs the fluid excreted by the wearer, along the direction in which the absorbent main body extends, and at the left and right ends of the absorbent main body. It has a three-dimensional gather. In both pants-type diapers and tape-type diapers, when the wearer wears a diaper, the edge of the three-dimensional gather is in direct contact with the wearer's skin (for example, see Patent Document 1).

JP 2012-143469 A

  By the way, since a three-dimensional gather contacts a wearer's skin directly, in order to improve the touch of a three-dimensional gather, it is calculated | required to raise the softness | flexibility in the edge of a three-dimensional gather. In addition, such a matter is calculated | required similarly not only in a disposable diaper but in another absorbent article.

  An object of this invention is to improve the softness | flexibility in the edge of a three-dimensional gather.

  An absorbent article for solving the above problems is connected to the front body covering the abdomen of the wearer, the back body covering the back of the wearer, the front body and the back body, and the inseam of the wearer. And a crotch portion for covering. The direction in which the front body, the crotch part, and the back body are arranged is the extending direction. The absorbent body extends along the extending direction, and the absorbent body is located in the front body, the back body, and the absorbent main body located in the crotch portion, and the surface of the absorbent main body facing the wearer's skin. The main body includes a pair of three-dimensional gathers fixed to end portions extending along the extending direction. Each of the three-dimensional gathers includes an outer edge extending along the extending direction and fixed to the absorbent main body along the extending direction, and an inner edge opposite to the outer edge. One sheet, a second sheet that extends along the extending direction and faces the first sheet, the second sheet including the inner edge, and between the first sheet and the second sheet And a plurality of elastic members arranged along the extending direction and arranged in a direction orthogonal to the extending direction. Among the plurality of elastic members, the elastic member having the smallest distance from the inner edge is a tip elastic member. The tip elastic member includes a tip fixing region including a tip fixing portion fixed to the first sheet and the second sheet by an adhesive. The tip fixing portion is located at each of two ends in the extending direction in the tip fixing region. The tip fixing region further includes a non-fixed portion that is not fixed to the first sheet and the second sheet.

  According to the above configuration, the region to which the adhesive is applied is made smaller at a position where the distance from the inner edge of the first sheet is smaller than the configuration in which the entire fixing region of the tip elastic member is fixed to the first sheet. Therefore, the flexibility at the inner edge can be increased.

  In the absorbent article, the tip fixing region is composed of two tip fixing portions and one non-fixing portion, and the non-fixing portion is sandwiched between the tip fixing portions in the extending direction, In the extending direction, it is preferable that the length of each tip fixing portion is shorter than the length of the non-fixing portion.

  According to the said structure, compared with the structure where the length of the front-end | tip fixed part along an extending direction is longer than the length of the non-fixed part along an extending direction, the area | region where an adhesive agent is apply | coated among 1st sheets. Since it can be made small in the extending direction, the flexibility at the inner edge can be further increased.

  In the said absorbent article, it is preferable that the sum total of the length of the said front end fixed part is shorter than the length of the said non-fixed part in the said extending direction.

According to the said structure, since the area | region where an adhesive agent is apply | coated can be made further smaller in an extending direction among 1st sheets, the softness | flexibility in an inner edge can be improved more.
In the absorbent article, in the plurality of elastic members, the elastic member other than the distal elastic member is a proximal elastic member. The base end elastic member is a base end fixing region including a base end fixing portion fixed to the first sheet and the second sheet with an adhesive, and the base end fixing portion is a base end fixing region of the base end fixing region. Among these, at least the proximal end fixing region located at each of the two ends in the extending direction is provided. In the extending direction, it is preferable that the total length of the proximal end fixing portion is longer than the total length of the distal end fixing portion.

  According to the above configuration, the distal end fixing region includes a non-fixed portion to increase flexibility at the inner edge, but the proximal end fixed portion longer than the distal end fixed portion reduces the adhesion to the skin in the three-dimensional gather. Can be suppressed.

  In the absorbent article, it is preferable that the entire base end fixing region is the base end fixing portion.

  According to the said structure, the fall of the adhesiveness in a three-dimensional gather can be suppressed more compared with the structure where a base end fixed area | region contains a non-fixed part.

  In the absorbent article, the first sheet is a first sheet element constituting a part of one sheet, and the second sheet is a portion of the sheet that is different from the first sheet element. It is a 2nd sheet | seat element to comprise, The said inner edge of the said three-dimensional gather may be sufficient as the boundary of the said 1st sheet | seat and the said 2nd sheet | seat.

  According to the above configuration, the number of three-dimensional gathers can be reduced by the amount that the plurality of elastic members are sandwiched between one sheet.

  According to the present invention, the flexibility at the edge of a three-dimensional gather can be increased.

The perspective view which shows the perspective structure in the underpants type diaper in 1st Embodiment which actualized the absorbent article as a pants type diaper. The top view which shows the planar structure in the state by which the underpants type diaper of 1st Embodiment was expand | deployed. Sectional drawing which shows the cross-sectional structure which follows the II line | wire in FIG. The enlarged plan view which expands and shows the planar structure of the area | region A in FIG. Sectional drawing which shows the cross-sectional structure which follows the II-II line | wire in FIG. The top view which shows the planar structure in the state by which the diaper was expand | deployed in 2nd Embodiment which actualized the absorbent article as a pants-type diaper. Sectional drawing which shows the cross-sectional structure which follows the III-III line in FIG. Sectional drawing which shows the cross-sectional structure which follows the IV-IV line | wire in FIG.

[First Embodiment]
With reference to FIGS. 1-5, 1st Embodiment which actualized the absorbent article as a pants-type diaper which is an example of a disposable diaper is described. Below, the whole structure of a diaper, the structure of a three-dimensional gather, the structure of a waist gather, and the structure of a leg gather are demonstrated in order.

[Overall configuration of diapers]
The overall configuration of the diaper will be described with reference to FIGS. 1 and 2. In addition, while FIG. 1 shows the perspective structure of the diaper when worn, FIG. 2 shows the planar structure of the diaper when deployed, and the planar structure in a plan view facing the surface of the diaper that touches the wearer's skin. Is shown.

  As shown in FIG. 1, a pant-type diaper 10 is connected to a front body 11 that covers the wearer's abdomen, a back body 12 that covers the wearer's back, a front body 11, and a back body 12. And a crotch part 13 covering the crotch.

  The diaper 10 has a waist opening 10a that is an opening through which a wearer's torso passes, and includes a waist end 10a1 that is an opening end that defines the waist opening 10a. A front end portion 11a included in the front body 11 and a rear end portion 12a included in the rear body 12 constitute a waist end portion 10a1.

  In the diaper 10, both the front end part 11a and the rear end part 12a are gather end parts where the waist gathers are located, and the edges of the waist gathers constitute the edges of the gather end parts. That is, the diaper 10 includes a first waist gather 21A and a second waist gather 21B which are two waist gathers, the first waist gather 21A is located at the front end portion 11a, and the second waist gather 21B is a rear end portion. 12a. The edge of the first waist gather 21A constitutes the edge 11a1 of the front end part 11a, and the edge of the second waist gather 21B constitutes the edge 12a1 of the rear end part 12a.

  The diaper 10 has two leg openings that are openings through which a wearer's leg passes, and the two leg openings are composed of a first leg opening 10b1 and a second leg opening 10b2. When the wearer wears the diaper 10, a leg that is different from the leg passing through the other leg opening is passed through each leg opening.

  The crotch portion 13 defines a leg opening. In the crotch part 13, an end portion extending in a direction from the front body 11 to the back body 12 is an opening end where a leg gather including a plurality of pleats is located. The crotch portion 13 includes a first leg end portion 13a that is an opening end portion that defines the first leg opening 10b1, and a second leg end portion 13b that is an opening end portion that defines the second leg opening 10b2. . A first leg gather 22A is located at the first leg end 13a, and a second leg gather 22B is located at the second leg end 13b.

  The edge of each leg gather constitutes the edge of each leg end. That is, the edge of the first leg gather 22A constitutes the edge 13a1 of the first leg end portion 13a, and the edge of the second leg gather 22B constitutes the edge 13b1 of the second leg end portion 13b.

  As shown in FIG. 2, in the diaper 10, the crotch 13 is connected to the front body 11 and the back body 12, and the front body 11, the crotch 13, and the back body 12 are arranged in this order.

  The direction from the front body 11 which is the body where the first waist gather 21A is located toward the crotch 13 is the first direction D1, and the direction from the back body 12 which is the body where the second waist gather 21B is located toward the crotch 13 Is also in the first direction D1. That is, the first direction D1 is a direction in which the front body 11, the crotch part 13, and the back body 12 are arranged, and the direction from the front body 11 to the back body 12, and from the back body 12 to the front body 11. Including both the direction of heading. The first direction D1 is also a direction in which the front body 11, the crotch part 13, and the back body 12 are arranged, and is an example of an extending direction. The direction orthogonal to the first direction D1 is the second direction D2.

  The diaper 10 includes an exterior body 31 extending along the first direction D1 and an absorbent main body 32 extending along the first direction D1, and the length of the exterior body 31 along the second direction D2 is the absorbent body. 32, which is longer than the length along the second direction D2. The exterior body 31 and the absorbent main body 32 are fixed to each other so that the center of the exterior body 31 and the center of the absorbent main body 32 substantially coincide with each other.

  Each of the exterior body 31 and the absorbent main body 32 is located in the front body 11, the back body 12, and the crotch 13. In the exterior body 31, the first portion 31P1 included in the front body 11, the second portion 31P2 included in the crotch portion 13, and the third portion 31P3 included in the back body 12 are arranged in this order along the first direction D1. Are lined up. In the absorbent main body 32, a part included in the front body 11, a part included in the crotch part 13, and a part included in the back body 12 are arranged in this order along the first direction D1.

  The exterior body 31 has two end portions in the first direction D1, and the two end portions are a first end portion 31a and a second end portion 31b. The first end portion 31 a constitutes a front end portion 11 a included in the front body 11, and the second end portion 31 b constitutes a rear end portion 12 a included in the rear body 12.

  The first portion 31P1 has a first joint end P1a and a second joint end P1b as ends in the second direction D2, and the third portion 31P3 is a first joint end as an end in the second direction D2. It has a part P3a and a second joint end P3b.

  The second portion 31P2 has a width that decreases along the second direction D2 along the direction from the first portion 31P1 toward the third portion 31P3, and a width that extends along the second direction D2 from the third portion 31P3 to the first portion. Part which becomes small along the direction which goes to 31P1. Thereby, in the 2nd part 31P2, the width | variety along the 2nd direction D2 becomes the smallest in the part containing the center of the 1st direction D1.

  In the diaper 10, in the unfolded outer package 31, the first joint end P1a in the first portion 31P1 and the first joint end P3a in the third portion 31P3 are joined. Furthermore, the second joint end P1b in the first portion 31P1 and the second joint end P3b in the third portion 31P3 are joined. Thereby, in the diaper 10, the waist opening 10a is partitioned by the first portion 31P1 and the third portion 31P3, and the first leg opening 10b1 and the second leg opening 10b2 are partitioned by the second portion 31P2.

  The diaper 10 includes a pair of solid gathers, and the pair of solid gathers includes a first solid gather 23A and a second solid gather 23B. Each three-dimensional gather is fixed to an end of the absorbent main body 32 that extends along the first direction D1 in the surface of the absorbent main body 32 that faces the wearer's skin.

[Composition of 3D gather]
With reference to FIG. 3 and FIG. FIG. 3 shows a cross-sectional structure taken along line II in FIG. FIG. 4 shows an enlarged plan structure of the region A in FIG.

  The first three-dimensional gather 23A and the second three-dimensional gather 23B are different from each other in the position of the diaper 10, while the members constituting each three-dimensional gather are common to each other. Therefore, in the following, the first solid gather 23A will be described in detail, while the detailed description of the second solid gather 23B will be omitted.

  As shown in FIG. 3, the absorbent main body 32 extends along the first direction D <b> 1 as described above, and includes the top sheet 41, the back sheet 42, and the absorber 43. The top sheet 41 transmits liquid, for example, liquid excreted by the wearer of the diaper 10, and the back sheet 42 transmits less liquid than the top sheet 41. The absorber 43 is located between the top sheet 41 and the back sheet 42 and absorbs the liquid that has passed through the top sheet 41.

  The exterior body 31 includes an outer sheet 51 and an inner sheet 52, and the entire inner sheet 52 is stacked on the outer sheet 51. Of the inner sheet 52, the surface opposite to the surface in contact with the outer sheet 51 is a surface that touches the wearer's skin, and the surface on which the absorbent main body 32 is fixed.

  As described above, the diaper 10 includes a pair of three-dimensional gathers fixed to the end portions extending along the first direction D1 of the absorbent main body 32, that is, the first three-dimensional gather 23A and the second three-dimensional gather 23B. I have.

  Among these, the first three-dimensional gather 23 </ b> A includes a side sheet 61 and a plurality of three-dimensional elastic members 62. The side sheet 61 has a main body portion 61a, a folded portion 61b, and a folded edge 61c. The main body 61a extends along the first direction D1 and occupies most of the side seat 61. The folded portion 61b extends along the first direction D1 and faces the main body portion 61a.

  In a state where the diaper 10 is unfolded, the folded portion 61b is folded with respect to the main body portion 61a along a fold extending along the first direction D1 at one end portion in the second direction D2 of the main body portion 61a. Part. The folding edge 61c is a fold extending along the first direction D1, and the main body 61a and the folding part 61b are connected to each other at the folding edge 61c. That is, the main body portion 61a is an example of a first sheet element that constitutes a side sheet 61 that is an example of a single sheet, and the folded portion 61b constitutes a portion of the side sheet 61 that is different from the main body portion 61a. It is an example of the 2nd sheet | seat element to do. A folding edge 61c that is a boundary between the main body 61a and the folding part 61b is an edge in the first three-dimensional gather 23A.

  In the state where the diaper 10 is unfolded, the folded portion 61b is folded at the folded edge 61c on the side where the absorbent main body 32 is located with respect to the main body portion 61a. The folding edge 61c may be folded back to the side opposite to the side where the absorbent main body 32 is located.

  The main body portion 61a includes an outer edge 61a1 fixed to the absorbent main body 32 along the first direction D1, and an inner edge opposite to the outer edge 61a1, and the main body portion 61a and the folded portion 61b have inner edges. Contains. In the side sheet 61, the folding edge 61c constitutes an inner edge included in the main body portion 61a and the folding portion 61b. In the state where the diaper 10 is deployed, the outer edge 61a1 is located outside the inner edge in the second direction D2, and the inner edge is closer to the center of the absorbent main body 32 than the outer edge 61a1 in the second direction D2. positioned.

  The outer edge 61 a 1 of the side sheet 61 is located between the back sheet 42 of the absorbent main body 32 and the inner sheet 52 of the exterior body 31, and is fixed to the back sheet 42 and the inner sheet 52. The outer edge 61a1 of the side sheet 61 may be fixed to the end of the absorbent main body 32 extending along the first direction D1, and may not be fixed to the exterior body 31.

  The plurality of three-dimensional elastic members 62 are located between the main body portion 61a and the folded portion 61b. The plurality of three-dimensional elastic members 62 have a linear shape that extends along the direction perpendicular to the first direction D1 on a plane that extends along the first direction D1 and in which the main body 61a extends.

  The plurality of three-dimensional elastic members 62 are in a state in which the diaper 10 is deployed, and in a state in which the plurality of three-dimensional elastic members 62 are extended, the plurality of three-dimensional elastic members 62 are spaced from each other in the second direction D2, which is a direction orthogonal to the first direction D1. They are lined up. At this time, the side sheet 61 sandwiching the three-dimensional elastic member 62 is along the top sheet 41 of the absorbent main body 32.

  On the other hand, the plurality of three-dimensional elastic members 62 are in a state where the plurality of three-dimensional elastic members 62 are contracted, in other words, in a state where the side sheet 61 rises along a plane intersecting with the outer body 31. On the intersecting planes, they are arranged at intervals along the direction intersecting the exterior body 31. That is, the plurality of three-dimensional elastic members 62 are arranged at intervals along a direction orthogonal to the direction in which each three-dimensional elastic member 62 extends on the plane on which the side sheet 61 is located.

  The three-dimensional elastic member 62 included in each three-dimensional gather will be described in detail with reference to FIG. In addition, FIG. 4 has shown typically the state by which the diaper 10 was expand | deployed and the solid elastic member 62 was extended. In FIG. 4, the three-dimensional elastic member 62 is fixed to the side sheet 61 for the purpose of easily distinguishing a portion fixed to the side sheet 61 and a portion not fixed to the side sheet 61. The dot is attached to the part.

  Each three-dimensional elastic member 62 includes a fixed region R1 including a fixed portion fixed to the main body 61a with an adhesive. Each three-dimensional elastic member 62 has a free region R2 in addition to the fixed region R1, and one three-dimensional elastic member 62 is composed of a fixed region R1 and two free regions R2. In each three-dimensional elastic member 62, the fixed region R1 is sandwiched between two free regions R2 in the first direction D1. The free region R2 is a portion that is not fixed to the main body portion 61a and the folded portion 61b. The length along the first direction D1 in each free region R2 is shorter than the length along the first direction D1 in the fixed region R1. Each three-dimensional elastic member 62 may not have the free region R2.

  Among the plurality of three-dimensional elastic members 62, the three-dimensional elastic member 62 having the smallest distance from the inner edge of the first three-dimensional gather 23A, in other words, the folded edge 61c of the side seat 61 is the tip elastic member 62a. The other three-dimensional elastic member 62 is the base end elastic member 62b.

  The fixing region R1 of the tip elastic member 62a is a tip fixing region R1a, and includes a tip fixing portion R1a1 fixed to the main body portion 61a and the folded portion 61b with an adhesive. The tip fixing portion R1a1 is located at two ends in the first direction D1 in the tip fixing region R1a. The tip fixing region R1a further includes a non-fixed portion R1a2 that is not fixed to the main body portion 61a and the folded portion 61b.

  In the configuration in which the entire tip fixing region R1a is fixed to the main body portion 61a, an adhesive is applied to the entire tip fixing region R1a and a portion of the main body portion 61a that is in contact with the entire tip fixing region R1a. Thereby, in the part to which the adhesive agent was apply | coated among the main-body parts 61a, a softness | flexibility becomes lower than the state in which the adhesive agent is not applied with hardening of an adhesive agent.

  In this respect, the region where the adhesive is applied can be reduced at a position where the distance from the inner edge of the first three-dimensional gather 23A is small compared to the configuration in which the entire tip fixing region R1a is fixed to the main body 61a. it can. Therefore, the flexibility at the inner edge of the first three-dimensional gather 23A can be increased.

  The tip fixing region R1a includes two tip fixing portions R1a1 and one non-fixing portion R1a2. The non-fixing portion R1a2 is sandwiched between the two tip fixing portions R1a1 in the first direction D1. In the first direction D1, the length of each tip fixing portion R1a1 is shorter than the length of the non-fixing portion R1a2.

  Compared to the configuration in which the length of the tip fixing portion R1a1 along the first direction D1 is longer than the length of the non-fixing portion R1a2 along the first direction D1 in the tip elastic member 62a, the region to which the adhesive is applied is the first. It can be reduced in the direction D1. Therefore, the flexibility at the inner edge of the first three-dimensional gather 23A can be further increased.

  Furthermore, in the first direction D1, the total length of the tip fixing portion R1a1 is shorter than the length of the non-fixing portion R1a2. Thereby, since the area | region where an adhesive agent is apply | coated can be made further smaller in the 1st direction D1, the softness | flexibility in the inner edge of 1st three-dimensional gather 23A can be improved more.

  The base end elastic member 62b includes a base end fixing region R1b, and the base end fixing region R1b includes a base end fixing portion R1b1 fixed to the main body portion 61a and the folded portion 61b with an adhesive. The proximal end fixing portion R1b1 only needs to be positioned at each of at least two ends in the first direction D1, and in the first direction D1, the total length of the proximal end fixing portion R1b1 is equal to that of the distal end fixing portion R1a1. Longer than the total length.

  Therefore, while the distal end fixing region R1a includes the non-fixed portion R1a2, the flexibility at the inner edge is increased, and the proximal end fixing portion R1b1 longer than the distal end fixing portion R1a1 reduces the adhesion to the skin in the first three-dimensional gather 23A. Is suppressed.

  Moreover, the entire base end fixing region R1b is the base end fixing portion R1b1. Therefore, compared with the configuration in which the proximal end fixing region R1b includes a non-fixed portion, it is possible to further suppress the decrease in adhesion in the first three-dimensional gather 23A.

  The tip fixing portion R1a1 of the tip elastic member 62a is located at the inner edge of the first three-dimensional gather 23A. Therefore, compared to the configuration in which the fixed portion is separated from the inner edge of the first three-dimensional gather 23A, the tip elastic member 62a can be positioned at least on the inner edge of the first three-dimensional gather 23A. Since the tip elastic member 62a can easily come into contact with the skin, the adhesion of the first three-dimensional gather 23A can be improved. As a result, it is possible to prevent the liquid excreted by the wearer from leaking from the inner side of the first three-dimensional gather 23A to the outer side of the first three-dimensional gather 23A.

  In addition, in the non-fixed portion R1a2 of the tip elastic member 62a, the degree of freedom of the shape in the non-fixed portion R1a2 is increased, so that the folds are likely to be larger than the tip fixed portion R1a1. The distance d (hereinafter referred to as “distance d”) between the inner edge of the first three-dimensional gather 23A and the proximal elastic member 62b closest to the inner edge of the first three-dimensional gather 23A is one that determines the size of the folds. For this reason, the larger the distance d, the larger the folds. The larger the folds of the first three-dimensional gather 23A, the larger the gap between the first three-dimensional gather 23A and the wearer's skin, so that the fluid excreted by the wearer is more likely to leak.

  In this regard, the distal end fixing portion R1a1 of the distal elastic member 62a is positioned at the inner edge of the first three-dimensional gather 23A, so that the distal end fixing portion R1a1 is separated from the inner edge of the first three-dimensional gather 23A. The entire elastic member 62b can be positioned closer to the inner edge of the first three-dimensional gather 23A. Thereby, since the distance d becomes small, the liquid excreted by the wearer becomes difficult to leak.

  As described above, the main body portion 61a and the folded portion 61b sandwiching the plurality of three-dimensional elastic members 62 are elements that constitute one sheet, respectively, and a folded edge 61c that is a boundary between the main body portion 61a and the folded portion 61b. Is the inner edge of the first three-dimensional gather 23A.

  In manufacturing the diaper 10, the sheet including the main body 61a and the folded portion 61b can be folded along the distal elastic member 62a, so that the distal elastic member 62a is separated from the inner edge of the first three-dimensional gather 23A. Therefore, it is easy to bend the sheet.

  The distance d is preferably 9 mm or less. If the distance d is greater than 9 mm, the folds of the first three-dimensional gather 23A become large, and a large gap is formed between the first three-dimensional gather 23A and the wearer's skin.

  In this regard, if the distance d is 9 mm or less, the folds of the first three-dimensional gather 23A are smaller than the configuration in which the distance d is larger than 9 mm, and the area where the first three-dimensional gather 23A and the skin of the wearer touch each other. Can be reduced. Accordingly, it is possible to prevent the first three-dimensional gather 23A from being in close contact with the wearer's skin and from being difficult to follow.

[Composition of leg gathers]
The leg gather structure will be described in more detail with reference to FIG. 3 referred to above again. While the first leg gather 22A and the second leg gather 22B are different from each other in the diaper 10, the members constituting each leg gather are common to each other. Therefore, hereinafter, the first leg gather 22A will be described in detail, while the detailed description of the second leg gather 22B will be omitted.

  As shown in FIG. 3, the first leg gather 22 </ b> A includes an outer sheet 51, an inner sheet 52, and a plurality of leg elastic members 71. The plurality of leg elastic members 71 are a part of the plurality of elastic members provided in the exterior body 31.

  The outer sheet 51 includes the edge of the first leg gather 22A, and the inner sheet 52 faces the outer sheet 51 and includes the edge of the first leg gather 22A. The plurality of leg elastic members 71 are located between the outer sheet 51 and the inner sheet 52.

  Each leg elastic member 71 has a linear shape extending along the edge of the first leg end portion 13a in a state where the diaper 10 is deployed, and the plurality of leg elastic members 71 are orthogonal to the extending direction of the leg elastic members 71. Are lined up in the direction of That is, each leg elastic member 71 extends along the edge in the second direction D2 of the second portion 31P2 of the exterior body 31, and the plurality of leg elastic members 71 are orthogonal to the direction in which the leg elastic members 71 extend. In the direction to do, it is lined up with a gap.

  In each leg gather, the position of each leg elastic member 71 in the outer sheet 51 is preferably the same as the position of each solid elastic member 62 in the main body portion 61 a of the side seat 61. Further, the state in which each leg elastic member 71 is fixed to the outer sheet 51 and the inner sheet 52 is a state in which each three-dimensional elastic member 62 is fixed to the main body portion 61 a and the folded portion 61 b of the side seat 61. It is preferable that it is the same. Thereby, also by each leg gather, the effect equivalent to each waist gather can be acquired.

[Configuration of West Gather]
With reference to FIG. 5, the structure of a waist gather is demonstrated in detail. FIG. 5 shows a cross-sectional structure taken along line II-II in FIG.
As shown in FIG. 5, the first waist gather 21 </ b> A includes an outer sheet 51, an inner sheet 52, and a plurality of waist elastic members 81. The outer sheet 51 includes the edge of the first waist gather 21A. The first waist gather 21A has a plurality of pleats arranged along the second direction D2 when the diaper 10 is worn.

  The outer sheet 51 has a main body 51a, a folded portion 51b, and a folded edge 51c. The main body 51a extends along the first direction D1 and occupies most of the outer sheet 51. The folded portion 51b is a portion that is folded with respect to the main body 51a along each fold extending along the second direction D2 at each end in the first direction D1 of the main body 51a. The folding edge 51c is a fold extending along the second direction D2, and the main body 51a and the folding part 51b are connected to each other at the folding edge 51c. That is, each of the main body 51a and the folded portion 51b is an element belonging to the outer sheet 51 which is a single sheet. The folded edge 51c constitutes an edge in the first waist gather 21A.

  As described above, the folded portion 51b and the inner sheet 52 of the outer sheet 51 face the main body portion 51a of the outer sheet 51, and the folded portion 51b includes the edge of the first waist gather 21A.

  An end portion of the inner sheet 52 in the first direction D1 is fixed to a portion of the folded portion 51b of the outer sheet 51 closer to the center than the folded edge 51c.

  A part of the plurality of waist elastic members 81 is located between the main body 51 a and the folded portion 51 b in the outer sheet 51, and another part of the plurality of waist elastic members 81 is the outer sheet 51. It is located between the main body 51a and the inner sheet 52. The plurality of elastic waist members 81 have a linear shape that extends along the second direction D2 and is aligned in the first direction D1.

  Similar to the first waist gather 21A, the second waist gather 21B is composed of an outer sheet 51, an inner sheet 52, and a plurality of waist elastic members 81. The first waist gather 21A and the second waist gather 21B are different in position in the first direction D1, while the members constituting each waist gather are common.

  In the diaper 10, the exterior body 31 includes an outer sheet 51, an inner sheet 52, and a plurality of elastic members. The plurality of elastic members include a leg elastic member 71 and a waist elastic member 81. The outer sheet 51 and the inner sheet 52 have a sheet shape that spreads two-dimensionally along the first direction D1 and the second direction D2. As described above, the end portion of the inner sheet 52 in the first direction D1 is fixed to the folded portion 51b of the outer sheet 51, and the portion including the end portion of the inner sheet 52 is covered by the folded portion 51b.

  The absorbent main body 32 is fixed to the surface of the inner sheet 52 opposite to the surface facing the outer sheet 51, and the end of the absorbent main body 32 in the first direction D1 is a folded portion of the outer sheet 51, respectively. 51b.

  The plurality of elastic members included in the exterior body 31 further include a plurality of Tammy elastic members 82, and the plurality of Tammy elastic members 82 are located closer to the center of the exterior body 31 than the waist elastic member 81 in the first direction D1. ing.

  The plurality of tammy elastic members 82 are positioned closer to the first joint end portions P1a and P3a than the absorber 43, and the second joint end portions P1b and P3b are positioned closer to the absorber 43. It comprises a plurality of Tammy elastic members 82. The plurality of tammy elastic members 82 located closer to the first joint ends P1a and P3a than the absorber 43 and the plurality of tammy elastic members 82 located closer to the second joint ends P1b and P3b than the absorber 43 are , Each of which has a linear shape extending along the second direction D2, and is arranged at intervals in the first direction D1.

  The outer sheet 51, the inner sheet 52, and the Tammy elastic member 82 constitute a Tammy gather. Among the Tammy gathers, the Tammy gather located in the front body 11 is the first Tammy gather 24A, and the Tammy located in the back body 12 The gather is the second Tammy gather 24B. Each Tammy Gather has a plurality of pleats arranged along the second direction D2 when the diaper 10 is worn.

  In each waist gather, the position of each waist elastic member 81 in the main body 51a of the outer sheet 51 is preferably the same as the position of each three-dimensional elastic member 62 in the main body 61a of the side seat 61. The state in which each waist elastic member 81 is fixed to the outer sheet 51 and the inner sheet 52 is a state in which each three-dimensional elastic member 62 is fixed to the main body portion 61a and the folded portion 61b of the side seat 61. It is preferable that it is the same. Thereby, the effect equivalent to each waist gather can be acquired also by each solid gather.

As described above, according to the first embodiment of the absorbent article, the effects listed below can be obtained.
(1) Since the area | region where an adhesive agent is apply | coated can be made small in the position where the distance from the inner edge of each solid gather is small, the softness | flexibility in the inner edge of each solid gather can be improved.

  (2) In the tip elastic member 62a, the adhesive is applied as compared with a configuration in which the length of each tip fixing portion R1a1 along the first direction D1 is longer than the length of the non-fixing portion R1a2 along the first direction D1. The region can be reduced in the first direction D1. Therefore, the softness | flexibility in the inner edge of each solid gather can be improved more.

  (3) In the tip elastic member 62a, since the total length of the tip fixing portion R1a1 is shorter than the length of the non-fixing portion R1a2, the region to which the adhesive is applied can be further reduced in the first direction D1. Therefore, the flexibility at the inner edge of each solid gather can be further increased.

  (4) While the distal end fixing region R1a includes the non-fixed portion R1a2, the flexibility at the inner edge is enhanced, and the proximal end fixed portion R1b1 longer than the distal end fixed portion R1a1 reduces the adhesion to the skin in the three-dimensional gather. Can be suppressed.

  (5) Compared with the configuration in which the base end fixing region R1b includes a non-fixed portion, it is possible to suppress a decrease in adhesion in each three-dimensional gather.

  (6) Compared to the configuration in which the tip fixing portion R1a1 is separated from the inner edge of each three-dimensional gather, the tip elastic member 62a can be positioned at least on the inner edge of each three-dimensional gather. Since the tip elastic member 62a can easily come into contact with each other, the adhesion of each three-dimensional gather can be improved.

  (7) In manufacture of the diaper 10, since the sheet | seat containing the main-body part 61a and the folding | returning part 61b can be bend | folded along the front-end | tip elastic member 62a, the front-end | tip elastic member 62a is separated from the inner edge of each three-dimensional gather. Compared to, it is easy to bend the sheet.

[Modification of First Embodiment]
The first embodiment described above can be implemented with appropriate modifications as follows.
The plurality of three-dimensional elastic members 62 are sandwiched between the main body portion 61 a and the folded-back portion 61 b of the side sheet 61, but all the three-dimensional elastic members 62 are different from the side sheets 61 and the side sheets 61. However, it may be sandwiched between the sheet facing the side sheet 61. In this case, the side sheet 61 does not have the folded portion 61b, and the sheet sandwiching the three-dimensional elastic member 62 together with the side sheet 61 in a state where the three-dimensional elastic member 62 is extended is the inner edge of the three-dimensional gather. Should be included. In such a configuration, the side sheet 61 is an example of a first sheet, and the other sheet is an example of a second sheet.

  -Tip fixed part R1a1 does not need to be located in the inner edge of solid gathers. In other words, the tip fixing portion R1a1 may be separated from the inner edge of the three-dimensional gather. According to such a configuration, compared to a configuration in which the tip fixing portion R1a1 is positioned at the edge of the three-dimensional gather, the adhesive is less likely to be applied to the inner edge of the three-dimensional gather, so that the flexibility at the inner edge is more likely to increase.

  As described above, the tip fixing portion R1a1 is preferably located at the inner edge of the three-dimensional gather in order to prevent the liquid from leaking from the inside to the outside of the three-dimensional gather.

  The proximal end fixing region R1b may include a non-fixed portion. In this case, in the plurality of base end elastic members 62b, the lengths of the non-fixed portions along the first direction D1 may be equal to each other or different from each other. Thereby, the softness | flexibility of a three-dimensional gather can be improved compared with the structure which base end fixing | fixed area | region R1b does not contain an unfixed part.

  In the plurality of proximal elastic members 62b, in the configuration in which the lengths of the non-fixed portions along the first direction D1 are different from each other, for example, the proximal elastic member 62b having a smaller distance from the distal elastic member 62a in the second direction D2, The length of the non-fixed portion along the first direction D1 may be long. According to such a structure, since the area | region where an adhesive agent is apply | coated can be reduced as the part near the inner edge of a solid gather, the softness | flexibility of a solid gather becomes easy to increase, so that it approaches the inner edge of a solid gather.

  In the configuration in which the base end fixing region R1b includes a non-fixed portion, the base end elastic member 62b preferably has base end fixing portions R1b1 one by one at the end of the base end fixing region R1b in the first direction D1, One or more base end fixing portions R1b1 may be further provided between the two base end fixing portions R1b1 in the one direction D1.

  In the tip fixing region R1a, the total length along the first direction D1 in the two tip fixing portions R1a1 may be longer than the length of the non-fixed portion R1a2 along the first direction D1. Even in such a configuration, if the tip fixing region R1a includes the non-fixed portion R1a2, the same effect as the above (1) can be obtained.

  The length along the first direction D1 in each tip fixing portion R1a1 of the tip fixing region R1a may be longer than the length along the first direction D1 in the non-fixing portion R1a2. Even in such a configuration, if the tip fixing region R1a includes the non-fixed portion R1a2, the same effect as the above (1) can be obtained.

  The tip fixing region R1a has one or more other tip fixing portions R1a1 sandwiched between the two tip fixing portions R1a1 in the first direction D1 in addition to the two tip fixing portions R1a1 that are separated from each other in the first direction D1. May be. Even in such a configuration, if the tip fixing region R1a includes the non-fixed portion R1a2, the same effect as the above (1) can be obtained.

  -Only one of the front end portion 11a and the rear end portion 12a may be a gather end portion where a waist gather is located. Alternatively, while both the front end portion 11a and the rear end portion 12a are gather end portions, in the waist gather located at either end portion, the entire tip fixing region of the tip elastic member is the tip fixing portion R1a1. A certain configuration may be used. Even in such a configuration, in the waist gathers in which the tip fixing region of the tip elastic member includes the non-fixed portion, the same effect as the above-described (1) can be obtained.

  In the leg gather, either the outer sheet 51 or the inner sheet 52 may include both the first sheet element and the second sheet element. In this case, any one of the outer sheet 51 and the inner sheet 52 extends along the main body extending along the first direction D1 and the folding edge that is a fold along the edge in the second direction D2. And the folded portion is an example of the first sheet element, and the folded portion is an example of the second sheet element.

  The leg gather is composed of an outer sheet 51, an inner sheet 52, and a plurality of leg elastic members 71. Instead of the outer sheet 51 and the inner sheet 52, for example, the back sheet 42 of the absorbent main body 32 is used. The side sheet 61 may sandwich the plurality of leg elastic members 71. In this case, the back sheet 42 is an example of a first sheet, and the side sheet 61 is an example of a second sheet.

  The diaper 10 may be a tape type diaper. In this case, the waist gathers should just be comprised from the cover sheet | seat located in the outer side of the back seat | sheet 42, the side seat | sheet 61, and the some waist elastic member 81, for example. In such a configuration, the cover sheet is an example of the first sheet, and the side sheet 61 is an example of the second sheet.

  In the tape-type diaper, the leg gather may be composed of, for example, a cover sheet, a side sheet 61, and a plurality of leg elastic members 71. In such a configuration, the cover sheet is an example of the first sheet. The sheet 61 is an example of a second sheet. Further, for example, the leg gather may be configured by the back sheet 42, the top sheet 41, and the plurality of leg elastic members 71. In such a configuration, the back sheet 42 is an example of the first sheet, and the top sheet 41 is It is an example of a 2nd sheet | seat.

  Further, for example, the leg gather may be composed of a top sheet 41 and a plurality of leg elastic members 71. In such a configuration, the top sheet 41 includes a main body portion and a folded portion that is folded with respect to the main body portion. The top sheet 41 is an example of one sheet including a first sheet element and a second sheet element. Further, for example, the leg gather may be composed of the back sheet 42, the side sheet 61, and the plurality of leg elastic members 71. In such a configuration, the back sheet 42 is the first sheet, and the side sheet 61 is the second sheet. It is a sheet.

  The diaper 10 includes four types of gathers, a three-dimensional gather, a leg gather, a waist gather, and a tammy gather.

  The absorbent article is not limited to the diaper 10 and may be, for example, a urine absorption pad, an absorption pad, a sanitary napkin, or the like.

[Second Embodiment]
With reference to FIGS. 6-8, 2nd Embodiment which actualized the absorbent article as a pants-type diaper which is an example of a disposable diaper is described. The diaper of 2nd Embodiment differs in the structure of an exterior body and an absorbent article compared with the diaper of 1st Embodiment. Therefore, in the following, such differences will be described in detail, while detailed description of the configuration common to the diaper of the first embodiment will be omitted.

  Moreover, the diaper of 2nd Embodiment has the shape similar to the diaper of 1st Embodiment in the state worn by the wearer. Therefore, in the following, the planar structure and the cross-sectional structure in the diaper of the second embodiment will be described in detail, but the description of the shape in a state worn by the wearer will be omitted. Moreover, below, the whole structure of a diaper, the structure of a three-dimensional gather, the structure of a leg gather, and the structure of a waist gather are demonstrated in order.

[Overall configuration of diapers]
The overall configuration of the diaper will be described with reference to FIG.
As shown in FIG. 6, the diaper 90 includes a ventral-side exterior body 91, a back-side exterior body 92, an absorbent main body 93, and a pair of side sheets 94. Each of the ventral-side exterior body 91 and the back-side exterior body 92 has a strip shape extending along the second direction D2, and the abdominal-side exterior body 91 and the back-side exterior body 92 are spaced from each other in the first direction D1. Are lined up.

  In the ventral-side exterior body 91, two end portions in the second direction D2 are configured by a first joint end portion 91a and a second joint end portion 91b. In the backside exterior body 92, the two end portions in the second direction D2 are composed of a first joint end portion 92a and a second joint end portion 92b. In the second direction D2, the position of the first joint end 91a of the ventral exterior body 91 and the position of the first joint end 92a of the back exterior body 92 are substantially equal, and the second joint of the ventral exterior body 91 is the same. The position of the end portion 91b is substantially equal to the position of the second joint end portion 92b of the backside exterior body 92.

  The absorptive main body 93 has a strip shape extending along the first direction D1. In the second direction D2, the width of the absorbent main body 93 is smaller than the width of the abdominal exterior body 91 and the width of the back side exterior body 92. Of the two ends in the first direction D1 of the absorbent main body 93, one end is fixed to a portion including the center in the second direction D2 in the ventral-side exterior body 91, and the other end is The back side exterior body 92 is fixed to a portion including the center in the second direction D2.

  Each side sheet 94 has a strip shape extending along the first direction D <b> 1, and the pair of side sheets 94 are respectively fixed to end portions of the absorbent main body 93 in the second direction D <b> 2.

  In the diaper 90, the first joint end 91a of the ventral exterior body 91 and the first joint end 92a of the back exterior body 92 are joined together, and the second joint end 91b of the ventral exterior body 91 and the back side. The second joint end portion 92b of the exterior body 92 is joined to each other. As a result, a diaper 90 having a pants shape is formed. In the diaper 90, the abdominal exterior body 91 and the portion of the absorbent main body 93 that overlaps the abdominal exterior body 91 constitute the front body 11, and the back side exterior body 92 and the absorbent main body 93 are A portion overlapping the back side exterior body 92 constitutes the back body 12. A portion of the absorbent main body 93 that does not overlap with either the ventral-side exterior body 91 or the back-side exterior body 92 constitutes the crotch portion 13.

  Further, in the diaper 90 having a pants shape, the abdominal exterior body 91 and the back exterior body 92 define a waist opening, and a part of the abdominal exterior body 91, a part of the back side exterior body 92, and A part of the absorptive main body 93 constitutes an opening end that defines the leg opening. More specifically, two ends of the absorbent main body 93 in the second direction D2, that is, ends extending in the direction from the front body 11 to the back body 12, are the first end 93a and the second end 93b. It is composed of Of the first end portion 93a, the portion that does not overlap the ventral side exterior body 91 and the back side exterior body 92, that is, the end portion of the crotch 13 is the first opening element 93a1. A first leg gather including a plurality of pleats is located in the first opening element 93a1. Of the second end portion 93b, the portion that does not overlap with the ventral-side exterior body 91 and the back-side exterior body 92, that is, the end portion of the crotch portion 13 is the second opening element 93b1. A second leg gather including a plurality of pleats is located in the second opening element 93b1.

[Composition of 3D gather]
The configuration of the three-dimensional gather will be described with reference to FIG. FIG. 7 shows a cross-sectional structure taken along line III-III in FIG. In FIG. 7, for convenience of illustration, the pair of side sheets 94 is illustrated in a state separated from the absorbent main body 93.

  As shown in FIG. 7, the diaper 90 includes a first three-dimensional gather 101A and a second three-dimensional gather 101B arranged in the second direction D2. Each three-dimensional gather extends along the first direction D1 and is located at the end of the absorbent main body 93 in the second direction D2 in the surface facing the wearer's skin. . The first three-dimensional gather 101A and the second three-dimensional gather 101B are different from each other in the position of the diaper 90, but the members constituting each three-dimensional gather are common. Therefore, in the following, the first three-dimensional gather 101A will be described in detail, and the description of the second three-dimensional gather 101B will be omitted.

  The first three-dimensional gather 101 </ b> A is composed of one side sheet 94 and a plurality of three-dimensional elastic members 95. The side sheet 94 includes a first sheet element 94a, a second sheet element 94b, and a folded edge 94c. The folded edge 94c has a linear shape extending along the first direction D1, and the second sheet element 94b is folded with respect to the first sheet element 94a at the folded edge 94c.

  The first sheet element 94a includes a first edge 94a1 which is an edge opposite to the folded edge 94c, and the second sheet element 94b includes a second edge 94b1 which is an edge opposite to the folded edge 94c. Yes. The first edge 94a1 and the second edge 94b1 overlap each other in the direction in which the first sheet element 94a and the second sheet element 94b overlap.

  The first sheet element 94a and the second sheet element 94b face each other, and a plurality of three-dimensional elastic members 95 are sandwiched between the first sheet element 94a and the second sheet element 94b. The plurality of three-dimensional elastic members 95 are arranged at intervals in the second direction D2 from the position in contact with the folded edge 94c between the first sheet element 94a and the second sheet element 94b.

  In the first sheet element 94a and the second sheet element 94b, the folded edge 94c is an inner edge, and the first edge 94a1 and the second edge 94b1 constitute an outer edge.

[Composition of leg gathers]
The configuration of the leg gather will be described with reference to FIG. 7 referred to above again.
As shown in FIG. 7, the absorbent main body 93 includes a top sheet 111, a back sheet 112, a cover sheet 113, and an absorber 114. Each of the top sheet 111, the back sheet 112, the cover sheet 113, and the absorber 114 has a strip shape extending along the first direction D1. The absorbent body 114 is located between the top sheet 111 and the back sheet 112 in the thickness direction of the absorbent main body 93.

  The cover sheet 113 is located outside the back sheet 112 and covers the entire surface of the back sheet 112 opposite to the surface facing the absorber 114. The cover sheet 113 includes a main body portion 113a, two folded portions 113b, and two folded edges 113c.

  Each folding edge 113c has a linear shape extending along the first direction D1, and in the second direction D2, the two edges of the back sheet 112 are located in a region sandwiched between the two folding edges 113c. . Each folded portion 113b is folded with respect to the main body portion 113a at one folded edge 113c, and each folded portion 113b covers one end portion of the back sheet 112 in the second direction D2. One end of the top sheet 111 in the second direction D2 is joined to each folded portion 113b.

  The absorptive main body 93 further includes a plurality of leg elastic members 115, and each leg elastic member 115 has a linear shape extending along the first direction D1, and is arranged at intervals in the second direction D2. The plurality of leg elastic members 115 includes a first leg elastic member group 115A and a second leg elastic member group 115B. The first leg elastic member group 115A includes a plurality of leg elastic members 115 positioned closer to one folded edge 113c than the absorber 114 in the second direction D2, and the second leg elastic member group 115B includes an absorber. It comprises a plurality of leg elastic members 115 positioned closer to the other folded edge 113 c than 114.

  In each leg elastic member group, the leg elastic member 115 having the shortest distance from the folding edge 113c is located between the main body portion 113a and the folding portion 113b. On the other hand, the other leg elastic members 115 are located between the folded portion 113b and the back sheet 112.

  In such a diaper 90, the main body portion 113a, the folded portion 113b, the cover sheet 113, and the first leg elastic member group 115A of the back sheet 112 constitute a first leg gather 102A. Further, the main body portion 113a, the folded portion 113b, the cover sheet 113, and the second leg elastic member group 115B of the back sheet 112 constitute a second leg gather 102B. The folding edge 113c included in the first leg gather 102A constitutes the edge of the first leg gather 102A, and the folding edge 113c contained in the second leg gather 102B constitutes the edge of the second leg gather 102B.

  Note that the side sheet 94 described above is joined to the folded portion 113b of the cover sheet 113 and a part of the top sheet 111 at each end in the second direction D2 of the absorbent main body 93.

[Configuration of West Gather]
The configuration of the waist gather will be described with reference to FIG. FIG. 8 shows a cross-sectional structure taken along line IV-IV in FIG. In FIG. 8, the absorptive main body 93 is represented by one block for convenience of illustration.

  As shown in FIG. 8, the ventral-side exterior body 91 includes a first outer sheet 121, a first inner sheet 122, and a plurality of first waist elastic members 123. The backside exterior body 92 includes a second outer sheet 131, a second inner sheet 132, and a plurality of second waist elastic members 133.

  In the thickness direction of the diaper 90, the first outer sheet 121 and the first inner sheet 122 overlap, and the second outer sheet 131 and the second inner sheet 132 overlap. Of the first inner sheet 122, on the surface opposite to the surface facing the first outer sheet 121, and on the surface of the second inner sheet 132 opposite to the surface facing the second outer sheet 131, The absorptive main body 93 is joined.

  The first outer sheet 121 includes a main body part 121a, a folded part 121b, and a folded edge 121c. The folding edge 121c has a linear shape extending along the second direction D2, and the folding part 121b is folded at the folding edge 121c to the side where the first inner sheet 122 is located with respect to the main body part 121a. . Accordingly, the folded portion 121b covers one end portion in the first direction D1 of the first inner sheet 122 and one end portion of the absorbent main body 93 in the first direction D1.

  The plurality of first waist elastic members 123 are located closer to the folding edge 121c than the absorbent main body 93 in the first direction D1 between the first outer sheet 121 and the first inner sheet 122. The first waist elastic members 123 have a linear shape extending along the second direction D2, and are arranged at intervals in the first direction D1.

  In such a diaper 90, the first outer sheet 121, the first inner sheet 122, and the plurality of first waist elastic members 123 constitute a first waist gather 103A. A folded edge 121c of the first outer sheet 121 constitutes an edge of the first waist gather 103A.

  On the other hand, the 2nd outer sheet | seat 131 is comprised similarly to the 1st outer sheet | seat 121 from the main-body part 131a, the folding | returning part 131b, and the folding | turning edge 131c. The folding edge 131c has a linear shape extending along the second direction D2, and the folding part 131b is folded at the folding edge 131c to the side where the second inner sheet 132 is located with respect to the main body part 131a. . Accordingly, the folded portion 131b covers one end portion in the first direction D1 of the second inner sheet 132 and one end portion of the absorbent main body 93 in the first direction D1.

  The plurality of second waist elastic members 133 are located closer to the folding edge 131c than the absorbent main body 93 in the first direction D1 between the second outer sheet 131 and the second inner sheet 132. Each of the second waist elastic members 133 has a linear shape extending along the second direction D2, and is arranged at intervals in the first direction D1.

  In such a diaper 90, the second outer sheet 131, the second inner sheet 132, and the plurality of second waist elastic members 133 constitute a second waist gather 103B. The folding edge 131c of the second outer sheet 131 constitutes the edge of the second waist gather 103B.

  In the ventral side exterior body 91, a plurality of first tammy elastic members 124 are located between the first outer sheet 121 and the first inner sheet 122. The plurality of first tammy elastic members 124 are located closer to the center of the absorbent main body 93 in the first direction D1 than all the first waist elastic members 123.

  The plurality of first tammy elastic members 124 are closer to the first joint end 91a than the absorbent main body 93, and the second joint end 91b is closer to the second main end 93b than the absorbent main body 93. It is comprised from the several 1st Tammy elastic member 124 located. A plurality of first tammy elastic members 124 positioned closer to the first joint end 91a than the absorbent main body 93, and a plurality of first tammy elastic members positioned closer to the second joint end 91b than the absorbent main body 93. Reference numerals 124 each have a linear shape extending along the second direction D2, and are arranged at intervals in the first direction D1.

  The first outer sheet 121, the first inner sheet 122, and the first tammy elastic member 124 constitute the first tammy gather 104A. The first Tammy gather 104A has a plurality of pleats arranged along the second direction D2 when the diaper 90 is worn.

  In the backside exterior body 92, a plurality of second tammy elastic members 134 are positioned between the second outer sheet 131 and the second inner sheet 132. The plurality of second tammy elastic members 134 are located closer to the center of the absorbent main body 93 in the first direction D1 than all the second waist elastic members 133.

  The plurality of second tammy elastic members 134 are closer to the first joint end 92a than the absorbent main body 93, and closer to the second joint end 92b than the absorbent main body 93. It is comprised from the several 2nd Tammy elastic member 134 located. A plurality of second tammy elastic members 134 positioned closer to the first joint end portion 92a than the absorbent main body 93, and a plurality of second tammy elastic members positioned closer to the second joint end portion 91b than the absorbent main body 93. Each of the lines 134 has a linear shape extending along the second direction D2, and is arranged at intervals in the first direction D1.

  The second outer sheet 131, the second inner sheet 132, and the second tammy elastic member 134 constitute a second tammy gather 104B. The second tammy gather 104B has a plurality of pleats arranged along the second direction D2 when the diaper 90 is worn.

[Modification of Second Embodiment]
The second embodiment described above can be implemented with appropriate modifications as follows.
In the first leg gather 102 </ b> A, all the leg elastic members 115 constituting the first leg elastic member group 115 </ b> A may be positioned between the folded portion 113 b of the cover sheet 113 and the back sheet 112. Further, in the second leg gather 102B, all the leg elastic members 115 constituting the second leg elastic member group 115B may be positioned between the folded portion 113b of the cover sheet 113 and the back sheet 112.

  Of the first inner sheet 122, the end covered with the folded portion 121b of the first outer sheet 121 is positioned closer to the absorbent main body 93 than all the first waist elastic members 123 in the first direction D1. May be. That is, in the first waist gather 103A, all the first waist elastic members 123 may be positioned between the main body 121a and the folded portion 121b of the first outer sheet 121. Moreover, the edge part covered with the folding | returning part 131b of the 2nd outer sheet | seat 132 among the 2nd inner sheets 132 is located in the 1st direction D1 near the absorptive main body 93 rather than all the 2nd waist elastic members 133. May be. That is, in the second waist gather 103B, all the second waist elastic members 133 may be positioned between the main body 131a and the folded portion 131b of the second outer sheet 131.

  Each of the ventral exterior body 91 and the back exterior body 92 may be configured to include only one exterior sheet. In this case, each exterior sheet should just be comprised from the folding | turning edge which comprises the edge of a 1st sheet element, a 2nd sheet element, and a waist gather. If the folding edge has a linear shape extending along the second direction D2, and the second sheet element is folded at the folding edge to the side where the absorbent main body 93 is positioned with respect to the first sheet element. Good. Moreover, the some waist elastic member should just be located between the 1st sheet | seat element and the 2nd sheet | seat element. In addition, the absorptive main body 93 should just be joined to the surface on the opposite side to the surface facing a 1st sheet element among 2nd sheet elements.

  The diaper 90 includes four types of gathers, a three-dimensional gather, a leg gather, a waist gather, and a tammy gather.

  DESCRIPTION OF SYMBOLS 10,90 ... Diaper, 10a ... Waist opening, 10a1 ... Waist end, 10b1 ... First leg opening, 10b2 ... Second leg opening, 11 ... Front body, 11a ... Front end, 11a1, 12a1, 13a1, 13b1 ... Edge , 12 ... Rear body, 12a ... Rear end, 13 ... Crotch, 13a ... First leg end, 13b ... Second leg end, 21A, 103A ... First waist gather, 21B, 103B ... Second waist gather 22A, 102A ... 1st leg gather, 22B, 102B ... 2nd leg gather, 23A, 101A ... 1st solid gather, 23B, 101B ... 2nd solid gather, 24A, 104A ... 1st Tammy gather, 24B, 104B ... 2nd Tammy Gather, 31 ... exterior body, 31a ... 1st end, 31b ... 2nd end, 31P1 ... 1st part, 31P2 2nd part, 31P3 ... 3rd part, 32, 93 ... Absorbent body, 41, 111 ... Top sheet, 42, 112 ... Back sheet, 43, 114 ... Absorber, 51 ... Outer sheet, 51a, 61a, 113a, 121a, 131a ... main body, 51b, 61b, 113b, 121b, 131b ... folded portion, 51c, 61c, 94c, 113c, 121c, 131c ... folded edge, 52 ... inner sheet, 61, 94 ... side sheet, 61a1 ... outside Edge, 62, 95 ... Solid elastic member, 62a ... Tip elastic member, 62b ... Base end elastic member, 71, 115 ... Leg elastic member, 81 ... Waist elastic member, 82 ... Tammy elastic member, 91 ... Ventral exterior body, 91a, 92a, P1a, P3a ... first joint end, 91b, 92b, P1b, P3b ... second joint end, 92 ... dorsal side Body, 93a ... first end, 93a1 ... first opening element, 93b ... second end, 93b1 ... second opening element, 94a ... first sheet element, 94a1 ... first edge, 94b ... second sheet element 94b1 ... second edge, 113 ... cover sheet, 115A ... first leg elastic member group, 115B ... second leg elastic member group, 121 ... first outer sheet, 122 ... first inner sheet, 123 ... first waist elasticity Member 124... First tammy elastic member 131 131 second outer sheet 132 second inner sheet 133 second waist elastic member 134 second tammy elastic member R1 fixing region R1a tip fixing region , R1a1... Tip fixed portion, R1a2... Non-fixed portion, R1b... Proximal end fixed region, R1b1.

Claims (6)

The front body covering the wearer's abdomen,
A back body covering the back of the wearer;
A crotch part connected to the front body and the back body and covering the crotch of the wearer,
The direction in which the front body, the crotch part, and the back body are arranged is an extending direction,
The absorbent main body extending along the extending direction, and located in the front body, the back body, and the crotch part,
Among the surfaces of the absorbent main body facing the wearer's skin, the absorbent main body comprises a pair of three-dimensional gathers respectively fixed to end portions extending along the extending direction,
Each of the three-dimensional gathers includes an outer edge extending along the extending direction and fixed to the absorbent main body along the extending direction, and an inner edge opposite to the outer edge. 1 sheet,
A second sheet extending along the extending direction and facing the first sheet, the second sheet including the inner edge;
A plurality of elastic members positioned between the first sheet and the second sheet, extending along the extending direction, and arranged in a direction orthogonal to the extending direction;
Among the plurality of elastic members, the elastic member having the smallest distance from the inner edge is a tip elastic member,
The tip elastic member includes a tip fixing region including a tip fixing portion fixed to the first sheet and the second sheet by an adhesive,
The tip fixing portion is located at each of the two end portions in the extending direction in the tip fixing region,
The tip fixing region further includes an unfixed portion that is not fixed to the first sheet and the second sheet. The tip fixing region is composed of two tip fixing portions and one non-fixing portion,
The non-fixed portion is sandwiched between the two tip fixed portions in the extending direction,
The absorbent article according to claim 1, wherein, in the extending direction, the length of each tip fixing portion is shorter than the length of the non-fixing portion. The absorbent article according to claim 2, wherein in the extending direction, the total length of the tip fixed portion is shorter than the length of the non-fixed portion. In the plurality of elastic members, the elastic member other than the distal elastic member is a proximal elastic member,
The base end elastic member is a base end fixing region including a base end fixing portion fixed to the first sheet and the second sheet with an adhesive, and the base end fixing portion is a base end fixing region of the base end fixing region. Among them, at least the proximal end fixing region located at each of the two ends in the extending direction,
The absorbent article according to any one of claims 1 to 3, wherein, in the extending direction, a total length of the proximal end fixing portion is longer than a total length of the distal end fixing portion. The absorbent article according to claim 4, wherein the entire base end fixing region is the base end fixing portion. The first sheet is a first sheet element constituting a part of one sheet,
The second sheet is a second sheet element constituting a portion of the sheet that is different from the first sheet element,
The absorbent article according to any one of claims 1 to 5, wherein a boundary between the first sheet element and the second sheet element is the inner edge of the three-dimensional gather.