JP6288229B1 - Absorbent articles - Google Patents

Abstract

An absorbent article capable of increasing flexibility at the edge of a waist gather is provided. Of the plurality of waist elastic members 43, the waist elastic member 43 having the smallest distance from the edge of the first waist gathers is the tip elastic member 43a. The tip elastic member 43a includes a tip fixing region R1a having a tip fixing portion R1a1 fixed to the main body portion 41a and the folded portion of the outer sheet with an adhesive. The tip fixing portion R1a1 is located at each of two ends in the second direction D2 in the tip fixing region R1a, and the tip fixing region R1a further includes a main body portion 41a and a non-fixed portion R1a2 that is not fixed to the folded portion. . [Selection] Figure 4

Description

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

  In the disposable diaper which is an example of an absorbent article, a pants-type diaper and a tape-type diaper are known. Among these, the pants-type diaper includes an absorbent main body, and the absorbent main body absorbs the liquid excreted by the wearer, a top sheet that transmits the liquid toward the absorbent, and a liquid that is more liquid than the top sheet. And a back sheet that sandwiches the absorber together with the top sheet. The pants-type diaper further includes two sheets that support the absorbent main body, and the two sheets are formed in a pants shape so that the absorbent main body is located in the crotch of the wearer. Moreover, a waist gather is located in the edge of the opening edge part which surrounds a wearer's trunk | body among three opening edge parts which a pants-type diaper has. When the wearer wears a diaper, the waist gather is in direct contact with the wearer's skin (for example, see Patent Document 1).

JP 2012-143469 A

  By the way, since the edge of a waist gathers touches a wearer's skin directly, in order to improve the touch of a waist gather, it is calculated | required to raise the softness | flexibility in the edge of a waist gather. In addition, such a matter is calculated | required similarly not only in a pants type diaper but in the tape type diaper mentioned above and other absorbent articles.

  An object of this invention is to provide the absorbent article which made it possible to raise the softness | flexibility in the edge of a waist 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. A crotch portion for covering. An opening end portion that defines an opening through which the wearer's torso passes is constituted by a front end portion included in the front body and a rear end portion included in the rear body, and at least one of the front end portion and the rear end portion Is the gather end where the waist gather is located. Of the front body and the back body, the direction from the body where the waist gathers is located toward the crotch is the first direction, and the direction orthogonal to the first direction is the second direction. The waist gather includes a first sheet including an edge of the waist gather, a second sheet facing the first sheet and including an edge of the waist gather, and the first sheet and the second sheet. And a plurality of elastic members that extend along the second direction and are arranged in the first direction. Of the plurality of elastic members, the elastic member having the smallest distance from the edge of the waist gather is the 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 second direction in the tip fixing region. The fixed region of the tip elastic member 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 reduced at a position where the distance from the edge of the waist gather is small as compared with the configuration in which the entire tip fixing region of the tip elastic member is fixed to the first sheet. Therefore, the flexibility at the edge of the waist gather 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 two tip fixing portions in the second direction. In the second 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 a 2nd direction is longer than the length of the non-fixed part along a 2nd direction, the area | region where an adhesive agent is apply | coated among 1st sheets. Since it can be made small in a 2nd direction, the softness | flexibility in the edge of a waist gather can be improved more.

  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 2nd direction.

  According to the said structure, since the area | region where an adhesive agent is apply | coated can be made further smaller in a 2nd direction among 1st sheets, the softness | flexibility in the edge of a waist gather 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 region is the base end fixing region. Among them, the proximal end fixing region located at each of the two end portions in the second direction is provided. In the second 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, while the distal end fixing region includes the non-fixed portion, the flexibility at the edge is increased, and the proximal end fixing portion longer than the distal end fixing portion suppresses a decrease in the adhesion to the skin at the waist gather. be able to.

  The said absorbent article WHEREIN: It is preferable that the whole said base end fixing | fixed area | region is the said fixing | fixed part.

  According to the said structure, the fall of the adhesiveness in a waist gather can be suppressed compared with the structure where a base end fixing 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 at least a part of the second sheet is the first sheet element of the sheet. Is a second sheet element constituting a different portion, and the boundary between the first sheet and the second sheet may be an edge of the waist gather.

  According to the above configuration, since the sheet including the first sheet element and the second sheet element can be bent along the tip elastic member in manufacturing the absorbent article, the tip elastic member is separated from the edge of the waist gather. Compared to the configuration, the sheet can be easily folded.

  ADVANTAGE OF THE INVENTION According to this invention, the softness | flexibility in the edge of a waist gather can be improved.

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 pants type diaper in 2nd Embodiment which actualized the absorbent article as a pants type diaper was expand | deployed. 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 waist gather, the structure of a solid 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 example of 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 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.

[Configuration of West Gather]
With reference to FIG. 3 and FIG. 4, the structure of a waist gather is demonstrated in detail. 3 shows a cross-sectional structure taken along the line II in FIG. 2, and FIG. 4 shows an enlarged plan structure of the region A in FIG.

  As shown in FIG. 3, the first waist gather 21 </ b> A includes an outer sheet 41, an inner sheet 42, and a plurality of waist elastic members 43. The outer sheet 41 is an example of a first sheet including an 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 41 has a main body portion 41a, a folded portion 41b, and a folded edge 41c. The main body portion 41a extends along the first direction D1 and occupies most of the outer sheet 41. The folded portion 41b is a portion that is folded with respect to the main body portion 41a along a fold extending along the second direction D2 at each end portion in the first direction D1 of the main body portion 41a. The folding edge 41c is a fold extending along the second direction D2, and the main body 41a and the folding part 41b are connected to each other at the folding edge 41c.

  That is, the main body portion 41a is an example of a first sheet element that constitutes an outer sheet 41 that is an example of a single sheet, and the folded portion 41b constitutes a portion of the outer sheet 41 that is different from the main body portion 41a. It is an example of the 2nd sheet | seat element to do. A folding edge 41c, which is a boundary between the main body portion 41a and the folding portion 41b, is an edge in one waist gather.

  The folded portion 41b and the inner sheet 42 of the outer sheet 41 face the main body portion 41a of the outer sheet 41, and the folded portion 41b is an example of a second sheet that includes the edge of the first waist gather 21A. An end portion of the inner sheet 42 in the first direction D1 is fixed to a portion of the folded portion 41b of the outer sheet 41 closer to the center than the folded edge 41c.

  A part of the plurality of waist elastic members 43 is located between the main body part 41 a and the folded part 41 b in the outer sheet 41, and another part of the plurality of waist elastic members 43 is a part of the outer sheet 41. It is located between the main body 41a and the inner sheet 42. The plurality of waist elastic members 43 have a linear shape extending along the second direction D2 and arranged in the first direction D1.

  Similar to the first waist gather 21A, the second waist gather 21B includes an outer sheet 41, an inner sheet 42, and a plurality of waist elastic members 43. 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 41, an inner sheet 42, and a plurality of elastic members. The outer sheet 41 and the inner sheet 42 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 42 in the first direction D1 is fixed to the folded portion 41b of the outer sheet 41, and the end portion of the inner sheet 42 is covered by the folded portion 41b. The plurality of elastic members provided in the exterior body 31 include the plurality of waist elastic members 43 described above.

  The absorbent main body 32 is fixed to the inner sheet 42, and ends of the absorbent main body 32 in the first direction D <b> 1 are covered with folded portions 41 b of the outer sheet 41, respectively.

  The absorbent main body 32 extends along the first direction D1 as described above, and includes the top sheet 51, the back sheet 52, and the absorber 53. The top sheet 51 transmits liquid, for example, liquid excreted by the wearer of the diaper 10, and the back sheet 52 transmits less liquid than the top sheet 51. The absorber 53 is located between the top sheet 51 and the back sheet 52 and absorbs liquid that has passed through the top sheet 51.

  The plurality of elastic members included in the exterior body 31 further include a plurality of Tammy elastic members 44, and the plurality of Tammy elastic members 44 are located closer to the center of the exterior body 31 than the waist elastic member 43 in the first direction D1. ing.

  The plurality of tammy elastic members 44 are positioned closer to the first joint end portions P1a and P3a than the absorber 53, and are positioned closer to the second joint end portions P1b and P3b than the absorber 53. A plurality of Tammy elastic members 44 are included. The plurality of tammy elastic members 44 located closer to the first joint end portions P1a and P3a than the absorber 53 and the plurality of tammy elastic members 44 located closer to the second joint end portions P1b and P3b than the absorber 53 include , 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 41, the inner sheet 42, and the Tammy elastic member 44 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.

  With reference to FIG. 4, the waist elastic member 43 with which each waist gather is provided is demonstrated in detail. In addition, FIG. 4 has shown typically the state by which the diaper 10 was expand | deployed and the waist elastic member 43 was extended. In FIG. 4, for convenience, it is easy to distinguish between a portion of the waist elastic member 43 that is fixed to the outer sheet 41 and the inner sheet 42 and a portion that is not fixed to these two sheets. Dots are attached to the parts fixed to the sheet.

  While the first waist gather 21A and the second waist gather 21B are different from each other in the first direction D1 in the diaper 10, the configuration of the waist elastic member 43 is common. Therefore, in the following, the first waist gather 21A will be described in detail, while a detailed description of the second waist gather 21B will be omitted.

  Each waist elastic member 43 includes a fixed region R1 including a fixed portion fixed to the main body portion 41a with an adhesive. Each waist elastic member 43 has a free region R2 in addition to the fixed region R1, and one waist elastic member 43 includes a fixed region R1 and two free regions R2. In each waist elastic member 43, the fixed region R1 is sandwiched between two free regions R2 in the second direction D2. The free region R2 is a portion that is not fixed to the main body portion 41a and the folded portion 41b. The length along the second direction D2 in each free region R2 is shorter than the length along the second direction D2 in the fixed region R1. Each waist elastic member 43 does not need to have free region R2.

  Among the plurality of waist elastic members 43, the waist elastic member 43 having the smallest distance from the edge of the first waist gather 21A, in other words, the folded edge 41c of the outer sheet 41 is the tip elastic member 43a, and other than the tip elastic member 43a. The waist elastic member 43 is the base end elastic member 43b.

  Among the plurality of waist elastic members 43, at least the distal elastic member 43a is located between the main body 41a and the folded portion 41b of the outer sheet 41, and at least a distance from the folded edge 41c of the proximal elastic member 43b. The largest base end elastic member 43b is located between the main body portion 41a and the inner sheet.

  The fixing region R1 of the tip elastic member 43a is the tip fixing region R1a, and includes a tip fixing portion R1a1 fixed to the main body portion 41a and the folded portion 41b with an adhesive. The tip fixing portion R1a1 is located at two ends in the second direction D2 in the tip fixing region R1a. The tip fixing region R1a further includes an unfixed portion R1a2 that is not fixed to the main body portion 41a and the folded portion 41b.

  In the configuration in which the entire tip fixing region R1a is fixed to the main body portion 41a, an adhesive is applied to the entire tip fixing region R1a and a portion of the main body portion 41a 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 41a, a softness | flexibility becomes lower than the state in which the adhesive agent is not applied with hardening of an adhesive agent.

  In this regard, the region to which the adhesive is applied can be reduced at a position where the distance from the edge of the first waist gather 21A is small compared to the configuration in which the entire tip fixing region R1a is fixed to the main body portion 41a. . Therefore, the softness | flexibility in the edge of the 1st waist gather 21A can be improved.

  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 second direction D2. In the second direction D2, 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 second direction D2 is longer than the length of the non-fixing portion R1a2 along the second direction D2 in the tip elastic member 43a, the region to which the adhesive is applied is second. It can be reduced in the direction D2. Therefore, the softness | flexibility in the edge of the 1st waist gather 21A can be improved more.

  Furthermore, in the second direction D2, 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 2nd direction D2, the softness | flexibility in the edge of the 1st waist gather 21A can be improved more.

  The base end elastic member 43b 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 41a and the folded portion 41b with an adhesive. The proximal end fixing portion R1b1 only needs to be positioned at each of at least two ends in the second direction D2. In the second direction D2, 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 tip fixing region R1a includes the non-fixed portion R1a2, the flexibility at the edge is increased, and the proximal end fixing portion R1b1 longer than the tip fixing portion R1a1 reduces the adhesion to the skin in the first waist gather 21A. It can be 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 suppress a decrease in adhesion in the first waist gather 21A.

  The tip fixing portion R1a1 of the tip elastic member 43a is located at the edge of the first waist gather 21A. Therefore, compared to the configuration in which the fixed portion is separated from the edge of the first waist gather 21A, the tip elastic member 43a can be positioned at least on the edge of the first waist gather 21A. Thereby, since the front-end | tip elastic member 43a becomes easy to contact a wearer's skin, the adhesiveness of 21 A of 1st waist gathers 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 waist gather 21A to the outer side of the first waist gather 21A.

  In the non-fixed portion R1a2 of the tip elastic member 43a, the degree of freedom in the shape of 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 edge of the first waist gather 21A and the proximal elastic member 43b closest to the edge of the first waist gather 21A contributes to determining the size of the folds. The larger the distance d, the larger the folds. Since the gap between the first waist gather 21A and the wearer's skin increases as the folds of the first waist gather 21A increase, the fluid excreted by the wearer is more likely to leak.

  In this regard, since the distal end fixing portion R1a1 of the distal end elastic member 43a is positioned at the edge of the first waist gather 21A, the proximal end elastic member is compared with the configuration in which the distal end fixing portion R1a1 is separated from the edge of the first waist gather 21A. The whole 43b can be located near the edge of the first waist gather 21A. Thereby, since the distance d becomes small, the liquid excreted by the wearer becomes difficult to leak.

  As described above, the main body portion 41a and the folded portion 41b sandwiching the tip elastic member 43a are elements constituting one sheet, and the folded edge 41c that is the boundary between the main body portion 41a and the folded portion 41b is the first. It is the edge of 1 waist gather 21A.

  In manufacture of the diaper 10, since the sheet | seat containing the main-body part 41a and the folding | returning part 41b can be bent along the front-end | tip elastic member 43a, compared with the structure which the front-end | tip elastic member 43a is separated from the edge of the 1st waist gather 21A. 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 waist gather 21A become large, and a large gap is formed between the first waist gather 21A and the wearer's skin.

  In this regard, if the distance d is 9 mm or less, the folds of the first waist gather 21A are smaller than the configuration in which the distance d is greater than 9 mm, and the area where the first waist gather 21A and the skin of the wearer touch. Can be reduced. Accordingly, it is possible to prevent the first waist gather 21A from being in close contact with the wearer's skin and from being difficult to follow.

[Composition of 3D gather]
The configuration of the three-dimensional gather will be described in more detail with reference to FIG. FIG. 5 shows a cross-sectional structure taken along line II-II in FIG.

  While the first three-dimensional gather 23A and the second three-dimensional gather 23B are different from each other in the diaper 10, 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. 5, as described above, the diaper 10 has a pair of three-dimensional gathers fixed to the end portions extending along the first direction D1 in the absorbent main body 32, that is, the first three-dimensional gather 23A. And a second three-dimensional gather 23B.

  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, each of the main body portion 61a and the folded portion 41b is an element belonging to the side sheet 61 that is a single sheet.

  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 52 of the absorbent main body 32 and the inner sheet 42 of the exterior body 31, and is fixed to the back sheet 52 and the inner sheet 42. 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.

  In each three-dimensional gather, the position of each three-dimensional elastic member 62 in the main body portion 61 a of the side seat 61 is preferably the same as the position of each waist elastic member 43 in the main body portion 41 a of the outer sheet 41. In addition, the 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 sheet 61 by an adhesive is that each waist elastic member 43 has the main body portion 41a and the folded portion 41b of the outer sheet 41. It is preferable that it is the same as the state fixed with an adhesive agent. Thereby, the effect equivalent to each waist gather can be acquired also by each solid gather.

[Composition of leg gathers]
With reference to FIG. 5 referred to above again, the structure of the leg gathers will be described in more detail. 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. 5, the first leg gather 22 </ b> A includes an outer sheet 41, an inner sheet 42, 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 41 includes the edge of the first leg gather 22A, and the inner sheet 42 faces the outer sheet 41 and includes the edge of the first leg gather 22A. The plurality of leg elastic members 71 are located between the outer sheet 41 and the inner sheet 42.

  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 41 is preferably the same as the position of each waist elastic member 43 in the main body portion 41 a of the outer sheet 41. Further, the state in which each leg elastic member 71 is fixed to the outer sheet 41 and the inner sheet 42 with an adhesive is that each waist elastic member 43 is bonded to the main body portion 41 a and the folded portion 41 b of the outer sheet 41. It is preferable that it is the same as the state fixed with an agent. Thereby, also by each leg gather, the effect equivalent to each waist gather can be acquired.

As described above, according to one 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 edge of each waist gather is small, the softness | flexibility in the edge of each waist gather can be improved.

  (2) In the tip elastic member 43a, the region where the adhesive is applied compared to the configuration in which the length of the tip fixing portion R1a1 along the second direction D2 is longer than the length of the non-fixing portion R1a2 along the second direction D2. Can be reduced in the second direction D2. Therefore, the softness | flexibility in the edge of each waist gather can be improved more.

  (3) In the tip elastic member 43a, 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 second direction D2. Therefore, the flexibility at the edge of each waist gather can be further increased.

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

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

  (6) Compared with the configuration in which the distal end fixing portion R1a1 is separated from the edge of each waist gather, the distal elastic member 43a can be positioned at least on the edge of each waist gather, and thereby the distal end is placed on the wearer's skin. Since the elastic member 43a is easy to contact, the adhesion of each waist gather can be improved.

  (7) In manufacture of the diaper 10, since the sheet | seat containing the main-body part 41a and the folding | returning part 41b can be bend | folded along the front-end | tip elastic member 43a, the front-end | tip elastic member 43a is separated from the edge of each waist gather, In comparison, the sheet can be easily folded.

[Modification of First Embodiment]
The embodiment described above can be implemented with appropriate modifications as follows.
-In waist gathers, all the waist elastic members 43 may be located between the main-body part 41a of the outer sheet | seat 41, and the folding | returning part 41b of the outer sheet | seat 41. FIG. Even in such a configuration, the main body portion 41a and the folded portion 41b are elements belonging to one outer sheet 41, respectively, and therefore, an effect equivalent to the above (7) can be obtained.

  A part of the plurality of waist elastic members 43 is sandwiched between the main body portion 41a and the folded portion 41b of the outer sheet 41, but all the waist elastic members 43 are connected to the outer sheet 41 and other sheets, for example, inner The sheet 42 or the inner sheet 42 may be sandwiched between different sheets. In this case, the outer sheet 41 does not need to have the folded portion 41 b, and the sheet that sandwiches the waist elastic member 43 together with the outer sheet 41 may face the outer sheet 41. In such a configuration, the outer sheet 41 is an example of a first sheet, and the other sheets are examples of a second sheet.

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

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

  The proximal end fixing region R1b may include a non-fixed portion. In this case, in the plurality of base end elastic members 43b, the lengths of the non-fixed portions along the second direction D2 may be equal to each other or different from each other. 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.

  In the plurality of proximal elastic members 43b, in the configuration in which the lengths of the non-fixed portions along the second direction D2 are different from each other, for example, the proximal elastic member 43b having a smaller distance from the distal elastic member 43a in the first direction D1, The length of the non-fixed portion along the second direction D2 may be long. According to such a structure, since the area | region where an adhesive agent is applied can be reduced as the part near the edge of a waist gather, the softness | flexibility of a waist gather becomes easy to increase, so that the edge of a waist gather is approached.

  In the configuration in which the base end fixing region R1b includes a non-fixed portion, the base end elastic member 43b only needs to have one base end fixing portion R1b1 at the end of the base end fixing region R1b in the second direction D2. In addition, one or more base end fixing portions R1b1 may be further provided between the two base end fixing portions R1b1 in the second direction D2.

  The total length along the second direction D2 in the tip fixing portion R1a1 may be longer than the length of the non-fixing portion R1a2 along the second direction D2. Even if it is such a structure, if the front-end | tip elastic member 43a contains the non-fixed part R1a2, the effect equivalent to (1) mentioned above can be acquired.

  The length along the second direction D2 in the tip fixed portion R1a1 may be longer than the length along the second direction D2 in the non-fixed portion R1a2. Even in such a configuration, if the tip fixing region R1a includes the tip fixing portion R1a1, it is possible to obtain the same effect as the above (1).

  The tip fixing region R1a has one or more other tip fixing portions R1a1 sandwiched between the two tip fixing portions R1a1 in the second direction D2, in addition to the two tip fixing portions R1a1 separated from each other in the second direction D2. 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, the waist gather located at either end portion has a configuration in which the entire tip fixing region R1a is the tip fixing portion R1a1. May be. Even in such a configuration, in the configuration in which the tip fixing region R1a includes the non-fixed portion R1a2, it is possible to obtain the same effect as the above (1).

  The three-dimensional gather may be composed of the side sheet 61, another sheet different from the side sheet 61, and a plurality of three-dimensional elastic members 62 sandwiched between the side sheet 61 and the other sheets. In this case, the folded portion 61b in the side sheet 61 may be omitted. 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.

  In the leg gather, either the outer sheet 41 or the inner sheet 42 may include both the first sheet element and the second sheet element. In this case, any one of the outer sheet 41 and the inner sheet 42 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. In such a configuration, the leg elastic member 71 is positioned at the folded edge, so that the same effect as the above (6) can be obtained.

  The leg gather is composed of an outer sheet 41, an inner sheet 42, and a plurality of leg elastic members 71, but instead of the outer sheet 41 and the inner sheet 42, for example, a back sheet 52 of the absorbent main body 32. The side seat 61 and a plurality of leg elastic members 71 located between them may be included. In this case, the back sheet 52 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 52, the side seat | sheet 61, and the some waist elastic member 43, 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 composed of the back sheet 52, the top sheet 51, and the plurality of leg elastic members 71. In such a configuration, the back sheet 52 is an example of the first sheet, and the top sheet 51 is It is an example of a 2nd sheet | seat.

  Further, for example, the leg gather may be composed of a top sheet 51 and a plurality of leg elastic members 71. In such a configuration, the top sheet 51 includes a main body portion and a folded portion that is folded with respect to the main body portion. The top sheet 51 is an example of a single sheet including a first sheet element and a second sheet element. Further, for example, the leg gather may be composed of a back sheet 52, a side sheet 61, and a plurality of leg elastic members 71. In such a configuration, the back sheet 52 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, that is, a waist gather, a tammy gather, a three-dimensional gather, and a leg gather. Of these, at least a waist gather may be provided.

  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 80 includes a ventral-side exterior body 81, a back-side exterior body 82, an absorbent main body 83, and a pair of side sheets 84. Each of the ventral-side exterior body 81 and the back-side exterior body 82 has a belt shape extending along the second direction D2, and the abdominal-side exterior body 81 and the back-side exterior body 82 are spaced apart in the first direction D1. Are lined up.

  In the ventral-side exterior body 81, two end portions in the second direction D2 are composed of a first joint end portion 81a and a second joint end portion 81b. In the backside exterior body 82, two end portions in the second direction D2 are constituted by a first joint end portion 82a and a second joint end portion 82b. In the second direction D2, the position of the first joint end 81a of the ventral exterior body 81 and the position of the first joint end 82a of the back exterior body 82 are substantially equal, and the second joint of the ventral exterior body 81 The position of the end portion 81b and the position of the second joint end portion 82b of the backside exterior body 82 are substantially equal.

  The absorptive main body 83 has a strip shape extending along the first direction D1. In the second direction D2, the width of the absorbent main body 83 is smaller than the width of the abdominal exterior body 81 and the width of the back exterior body 82. Of the two ends in the first direction D1 of the absorbent main body 83, one end is fixed to a portion including the center in the second direction D2 in the ventral-side exterior body 81, and the other end is The backside exterior body 82 is fixed to a portion including the center in the second direction D2.

  Each side sheet 84 has a strip shape extending along the first direction D <b> 1, and the pair of side sheets 84 are respectively fixed to end portions of the absorbent main body 83 in the second direction D <b> 2.

  In the diaper 80, the first joint end 81a of the ventral exterior body 81 and the first joint end 82a of the back exterior body 82 are joined together, and the second joint end 81b of the ventral exterior body 81 and the back side The second joint end portion 82b of the exterior body 82 is joined to each other. As a result, a diaper 80 having a pant shape is formed. In the diaper 80, the abdominal exterior body 81 and the portion of the absorbent main body 83 that overlaps the abdominal exterior body 81 constitute the front body 11, and the back side exterior body 82 and the absorbent main body 83 are A portion overlapping the back side exterior body 82 constitutes the back body 12. A portion of the absorbent main body 83 that does not overlap with either the ventral-side exterior body 81 or the back-side exterior body 82 constitutes the crotch portion 13.

  Further, in the diaper 80 having a pants shape, the abdominal exterior body 81 and the back exterior body 82 define a waist opening, a part of the abdominal exterior body 81, a part of the back exterior body 82, and A part of the absorptive main body 83 constitutes an opening end portion that defines the leg opening. More specifically, two ends of the absorbent main body 83 in the second direction D2, in other words, ends extending in the direction from the front body 11 to the back body 12, are the first end 83a and the second end 83b. It is composed of Of the first end 83a, the portion that does not overlap the ventral exterior body 81 and the back exterior body 82, that is, the end of the crotch part 13 is the first opening element 83a1. A first leg gather including a plurality of pleats is located in the first opening element 83a1. Of the second end 83b, the portion that does not overlap the ventral exterior body 81 and the back exterior body 82, that is, the end of the crotch part 13 is the second opening element 83b1. A second leg gather including a plurality of pleats is located in the second opening element 83b1.

[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 84 is illustrated in a state of being separated from the absorbent main body 83.

  As shown in FIG. 7, the diaper 80 includes a first three-dimensional gather 91A and a second three-dimensional gather 91B 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 83 in the second direction D2 in the surface facing the wearer's skin. . The first three-dimensional gather 91A and the second three-dimensional gather 91B are different from each other in the position of the diaper 80, but the members constituting each three-dimensional gather are common. Therefore, in the following, the first three-dimensional gather 91A will be described in detail, and the description of the second three-dimensional gather 91B will be omitted.

  The first three-dimensional gather 91 </ b> A includes a single side sheet 84 and a plurality of three-dimensional elastic members 85. The side sheet 84 includes a first sheet element 84a, a second sheet element 84b, and a folded edge 84c. The folded edge 84c has a linear shape extending along the first direction D1, and the second sheet element 84b is folded with respect to the first sheet element 84a at the folded edge 84c.

  The first sheet element 84a includes a first edge 84a1 that is an edge opposite to the folded edge 84c, and the second sheet element 84b includes a second edge 84b1 that is an edge opposite to the folded edge 84c. Yes. The first edge 84a1 and the second edge 84b1 overlap each other in the direction in which the first sheet element 84a and the second sheet element 84b overlap.

  The first sheet element 84a and the second sheet element 84b face each other, and a plurality of three-dimensional elastic members 85 are sandwiched between the first sheet element 84a and the second sheet element 84b. The plurality of three-dimensional elastic members 85 are arranged at an interval in the second direction D2 from the position in contact with the folding edge 84c between the first sheet element 84a and the second sheet element 84b.

  In the first sheet element 84a and the second sheet element 84b, the folded edge 84c is an inner edge, and the first edge 84a1 and the second edge 84b1 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 83 includes a top sheet 101, a back sheet 102, a cover sheet 103, and an absorber 104. Each of the top sheet 101, the back sheet 102, the cover sheet 103, and the absorber 104 has a belt shape extending along the first direction D1. The absorbent body 104 is positioned between the top sheet 101 and the back sheet 102 in the thickness direction of the absorbent main body 83.

  The cover sheet 103 is located outside the back sheet 102 and covers the entire surface of the back sheet 102 opposite to the surface facing the absorber 104. The cover sheet 103 includes a main body portion 103a, two folded portions 103b, and two folded edges 103c.

  Each folding edge 103c has a linear shape extending along the first direction D1, and in the second direction D2, the two edges of the backsheet 102 are located in a region sandwiched between the two folding edges 103c. . Each folded portion 103b is folded with respect to the main body portion 103a at one folded edge 103c, and each folded portion 103b covers one end portion of the back sheet 102 in the second direction D2. One end of the top sheet 101 in the second direction D2 is joined to each folded portion 103b.

  The absorptive main body 83 further includes a plurality of leg elastic members 105, and each leg elastic member 105 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 105 includes a first leg elastic member group 105A and a second leg elastic member group 105B. The first leg elastic member group 105A is composed of a plurality of leg elastic members 105 positioned closer to one folding edge 103c than the absorber 104 in the second direction D2, and the second leg elastic member group 105B is an absorber. The plurality of leg elastic members 105 are located closer to the other folding edge 103 c than 104.

  In each leg elastic member group, the leg elastic member 105 having the shortest distance from the folded edge 103c is located between the main body 103a and the folded portion 103b. On the other hand, the other leg elastic members 105 are positioned between the folded portion 103b and the back sheet 102.

  In such a diaper 80, the main body portion 103a, the folded portion 103b, the cover sheet 103, and the first leg elastic member group 105A of the back sheet 102 constitute a first leg gather 92A. Further, the main body portion 103a, the folded portion 103b, the cover sheet 103, and the second leg elastic member group 105B of the back sheet 102 constitute a second leg gather 92B. In the first leg gather 92A, the folded edge 103c included in the first leg gather 92A constitutes the edge of the first leg gather 92A, and the folded edge 103c included in the second leg gather 92B is the second leg gather 92B. Make up the rim.

  In addition, the side sheet 84 mentioned above is joined to the folding | returning part 103b of the cover sheet 103, and a part of top sheet 101 in each edge part in the 2nd direction D2 among the absorptive main bodies 83. FIG.

[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 83 is represented by one block for convenience of illustration.

  As shown in FIG. 8, the ventral-side exterior body 81 includes a first outer sheet 111, a first inner sheet 112, and a plurality of first waist elastic members 113. The backside exterior body 82 includes a second outer sheet 121, a second inner sheet 122, and a plurality of second waist elastic members 123.

  In the thickness direction of the diaper 80, the first outer sheet 111 and the first inner sheet 112 overlap, and the second outer sheet 121 and the second inner sheet 122 overlap. Of the first inner sheet 112, on the surface opposite to the surface facing the first outer sheet 111, and on the surface of the second inner sheet 122 opposite to the surface facing the second outer sheet 121, The absorptive main body 83 is joined.

  The first outer sheet 111 includes a main body portion 111a, a folded portion 111b, and a folded edge 111c. The folding edge 111c has a linear shape extending along the second direction D2, and the folding part 111b is folded at the folding edge 111c to the side where the first inner sheet 112 is located with respect to the main body part 111a. . Accordingly, the folded portion 111b covers one end portion in the first direction D1 of the first inner sheet 112 and one end portion of the absorbent main body 83 in the first direction D1.

  The plurality of first waist elastic members 113 are located closer to the folding edge 111c than the absorbent main body 83 in the first direction D1 between the first outer sheet 111 and the first inner sheet 112. Each of the first waist elastic members 113 has a linear shape extending along the second direction D2, and is arranged at an interval in the first direction D1.

  In such a diaper 80, the first outer sheet 111, the first inner sheet 112, and the plurality of first waist elastic members 113 form a first waist gather 93A. The folded edge 111c of the first outer sheet 111 constitutes the edge of the first waist gather 93A.

  On the other hand, the 2nd outer sheet | seat 121 is comprised similarly to the 1st outer sheet | seat 111 from the main-body part 121a, the folding | returning part 121b, and the folding | turning 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 second 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 second inner sheet 122 and one end portion of the absorbent main body 83 in the first direction D1.

  The plurality of second waist elastic members 123 are located closer to the folding edge 121c than the absorbent main body 83 in the first direction D1 between the second outer sheet 121 and the second inner sheet 122. Each of the second waist elastic members 123 has a linear shape extending along the second direction D2, and is arranged at intervals in the first direction D1.

  In such a diaper 80, the second outer sheet 121, the second inner sheet 122, and the plurality of second waist elastic members 123 form a second waist gather 93B. The folded edge 121c of the second outer sheet 121 constitutes the edge of the second waist gather 93B.

  In the ventral exterior body 81, a plurality of first tammy elastic members 114 are located between the first outer sheet 111 and the first inner sheet 112. The plurality of first tammy elastic members 114 are located closer to the center of the absorbent main body 83 in the first direction D1 than all the first waist elastic members 113.

  The plurality of first tammy elastic members 114 are closer to the first joint end portion 81a than the absorbent main body 83 and the second joint end portion 81b is closer to the second joint end portion 81b than the absorbent main body 83. It is comprised from the several 1st Tammy elastic member 114 located. A plurality of first tammy elastic members 114 located closer to the first joint end 81a than the absorbent main body 83, and a plurality of first tammy elastic members located closer to the second joint end 81b than the absorbent main body 83. 114 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 111, the first inner sheet 112, and the first tammy elastic member 114 constitute a first tammy gather 94A. The first tammy gather 94A has a plurality of pleats arranged along the second direction D2 when the diaper 80 is worn.

  In the backside exterior body 82, a plurality of second tammy elastic members 124 are positioned between the second outer sheet 121 and the second inner sheet 122. The plurality of second tammy elastic members 124 are located closer to the center of the absorbent main body 83 in the first direction D1 than all the second waist elastic members 123.

  The plurality of second tammy elastic members 124 are closer to the first joint end portion 82a than the absorbent main body 83 and the second tammy elastic members 124 are closer to the second joint end portion 82b than the absorbent main body 83. It is comprised from the several 2nd Tammy elastic member 124 located. A plurality of second tammy elastic members 124 positioned closer to the first joint end portion 82a than the absorbent main body 83, and a plurality of second tammy elastic members positioned closer to the second joint end portion 81b than the absorbent main body 83. 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 second outer sheet 121, the second inner sheet 122, and the second tammy elastic member 124 constitute a second tammy gather 94B. The second tammy gather 94B has a plurality of pleats arranged along the second direction D2 when the diaper 80 is worn.

[Modification of Second Embodiment]
The second embodiment described above can be implemented with appropriate modifications as follows.
In the first leg gather 92 </ b> A, all the leg elastic members 105 constituting the first leg elastic member group 105 </ b> A may be positioned between the folded portion 103 b of the cover sheet 103 and the back sheet 102. Further, in the second leg gather 92B, all the leg elastic members 105 constituting the second leg elastic member group 105B may be positioned between the folded portion 103b of the cover sheet 103 and the back sheet 102.

  Of the first inner sheet 112, the end covered with the folded portion 111b of the first outer sheet 111 is positioned closer to the absorbent main body 83 than all the first waist elastic members 113 in the first direction D1. May be. That is, in the first waist gather 93A, all the first waist elastic members 113 may be positioned between the main body portion 111a and the folded portion 111b of the first outer sheet 111. In addition, the end of the second inner sheet 122 that is covered with the folded portion 121b of the second outer sheet 121 is positioned closer to the absorbent main body 83 than all the second waist elastic members 123 in the first direction D1. May be. That is, in the second waist gather 93B, all the second waist elastic members 123 may be positioned between the main body 121a and the folded portion 121b of the second outer sheet 121.

  Each of the ventral exterior body 81 and the back exterior body 82 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 folded edge has a linear shape extending along the second direction D2, and the second sheet element is folded at the folded edge to the side where the absorbent main body 83 is located 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 83 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 80 includes four types of gathers, that is, a waist gather, a tammy gather, a three-dimensional gather, and a leg gather. Of these, at least a waist gather may be provided.

  DESCRIPTION OF SYMBOLS 10,80 ... Diaper, 10a ... Waist opening, 10a1 ... Waist edge part, 10b1 ... First leg opening, 10b2 ... Second leg opening, 11 ... Front body, 11a ... Front edge part, 11a1, 12a1, 13a1, 13b1 ... Edge , 12 ... Rear body, 12a ... Rear end, 13 ... Crotch, 13a ... First leg end, 13b ... Second leg end, 21A, 93A ... First waist gather, 21B, 93B ... Second waist gather 22A, 92A ... 1st leg gather, 22B, 92B ... 2nd leg gather, 23A, 91A ... 1st solid gather, 23B, 91B ... 2nd solid gather, 24A, 94A ... 1st Tammy gather, 24B, 94B ... 2nd Tammy Gather, 31 ... Exterior Body, 31a ... First End, 31b ... Second End, 31P1 ... First Part, 31P2 ... Second Part, 31 3 ... Third part, 32, 83 ... Absorbent body, 41 ... Outer sheet, 41a, 61a, 103a, 111a, 121a ... Body part, 41b, 61b, 103b, 111b, 121b ... Folded part, 41c, 61c, 84c , 103c, 111c, 121c... Folded edge, 42... Inner sheet, 43... Waist elastic member, 43a... Tip elastic member, 43b. ... Back sheet, 53, 104 ... Absorber, 61, 84 ... Side sheet, 61a1 ... Outer edge, 62, 85 ... Solid elastic member, 71, 105 ... Leg elastic member, 81 ... Ventral exterior body, 81a, 82a, P1a, P3a ... first joint end, 81b, 82b, P1b, P3b ... second joint end, 82 ... backside exterior body, 83a ... One end, 83a1 ... first opening element, 83b ... second end, 83b1 ... second opening element, 84a ... first sheet element, 84a1 ... first edge, 84b ... second sheet element, 84b1 ... second edge , 103 ... cover sheet, 105A ... first leg elastic member group, 105B ... second leg elastic member group, 111 ... first outer sheet, 112 ... first inner sheet, 113 ... first waist elastic member, 114 ... first Tammy elastic member, 121 ... second outer sheet, 122 ... second inner sheet, 123 ... second waist elastic member, 124 ... second tammy elastic member, R1 ... fixing region, R1a ... tip fixing region, R1a1 ... tip fixing portion , R1a2 ... non-fixed portion, R1b ... proximal end fixed region, R1b1 ... proximal end fixed portion, R2 ... free region.

Claims (4)

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,
An opening end portion that defines an opening through which the wearer's torso passes is constituted by a front end portion included in the front body and a rear end portion included in the back body,
At least one of the front end and the rear end is a gather end where a waist gather is located,
Of the front body and the back body, the direction from the body where the waist gathers is located toward the crotch is the first direction, and the direction orthogonal to the first direction is the second direction,
The waist gather is
A first sheet including an edge of the waist gather;
A second sheet facing the first sheet and including an edge of the waist gather;
A plurality of elastic members positioned between the first sheet and the second sheet, extending along the second direction, and arranged in the first direction;
Among the plurality of elastic members, the elastic member having the smallest distance from the edge of the waist gather is the 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 second direction in the tip fixing region,
The distal fixing region further seen including a non-fixed portion that is not fixed to the first sheet and said second sheet,
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 whole base end fixing region is the base end fixing. The proximal end fixing region being a portion,
The absorbent article in which the length of the base end fixing portion is longer than the total length of the tip fixing portion in the second direction . The tip fixing region is composed of two tip fixing portions and one non-fixing portion,
The non-fixed portion is sandwiched between two tip fixed portions in the second direction;
The absorptive article according to claim 1. In the 2nd direction, the length of each tip fixed part is shorter than the length of the non-fixed part. The absorptive article according to claim 2. In the 2nd direction, the sum total of the length of the tip fixed part is shorter than the length of the non-fixed part. The first sheet is a first sheet element constituting a part of one sheet,
At least a part of 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 3 , wherein a boundary between the first sheet element and the second sheet element is an edge of the waist gather.