JP6237562B2

JP6237562B2 - Absorbent articles

Info

Publication number: JP6237562B2
Application number: JP2014206792A
Authority: JP
Inventors: 瀧山　吉宏; 吉宏瀧山
Original assignee: Oji Holdings Corp; Oji Paper Co Ltd
Current assignee: New Oji Paper Co Ltd; Oji Holdings Corp
Priority date: 2014-10-07
Filing date: 2014-10-07
Publication date: 2017-11-29
Anticipated expiration: 2034-10-07
Also published as: JP2016073512A

Description

本発明は，着用者の股下に配置され，尿などの液体を吸収し保持するための吸収性物品に関する。 The present invention relates to an absorptive article which is disposed in a crotch of a wearer and absorbs and holds a liquid such as urine.

従来から，使い捨ておむつ，尿取りパッド，吸収パッド，又は生理用ナプキンなどのように，排泄された体液を吸収保持することを目的として，着用者の股下に装着される吸収性物品が知られている。一般的な吸収性物品は，液透過性のトップシートと液不透過性のバックシートとの間に吸収体を配置して構成された吸収性本体を有している。また，一般的な吸収性物品は，吸収性本体の左右両側に，着用者の肌に当接する方向に向かって立ち上がる一対の立体ギャザーが形成されている（特許文献１〜３等）。 2. Description of the Related Art Absorbent articles that are worn on the inseam of a wearer for the purpose of absorbing and retaining excreted body fluids, such as disposable diapers, urine absorption pads, absorption pads, or sanitary napkins, have been known. Yes. A typical absorbent article has an absorbent main body configured by disposing an absorbent body between a liquid-permeable top sheet and a liquid-impermeable back sheet. Moreover, as for a general absorbent article, a pair of three-dimensional gathers which stand up toward the direction contact | abutted to a wearer's skin are formed in the both right and left sides of an absorptive main body (patent documents 1-3 etc.).

一対の立体ギャザーは，吸収体の左右両側において起立するものであり，尿漏れを防ぐための防漏壁として機能する。立体ギャザーは，一般的に，トップシート上にサイドシートを重ねて接合し，このサイドシートの内側端部に弾性伸縮部材（糸ゴムなど）を伸長状態で固定することにより形成される。弾性伸縮部材が収縮すると，サイドシートの内側端部が弾性伸縮部材の収縮力によって立ち上がるとともに，弾性伸縮部材が収縮した部位に皺（ギャザー）が形成される。これにより，サイドシートが立体ギャザーとなる。 The pair of three-dimensional gathers stands on both the left and right sides of the absorber, and functions as a leak-proof wall for preventing urine leakage. A three-dimensional gather is generally formed by stacking and joining side sheets on a top sheet and fixing an elastic elastic member (such as rubber thread) to the inner end of the side sheet in an expanded state. When the elastic expansion / contraction member contracts, the inner end portion of the side sheet rises due to the contraction force of the elastic expansion / contraction member, and a gather is formed at a site where the elastic expansion / contraction member contracts. Thereby, a side sheet becomes a three-dimensional gather.

また，従来の吸収性物品は，一般的に，弾性伸縮部材がサイドシートの長手方向のほぼ全域に亘って固定されている。このため，サイドシートのほぼ全域に亘って皺が形成されることとなる。このように，従来の吸収性物品は，サイドシートの広い範囲に皺を形成することによって，立体ギャザーの肌触りを良くしようとしていた。 Further, in conventional absorbent articles, generally, elastic elastic members are fixed over almost the entire region in the longitudinal direction of the side sheet. For this reason, a wrinkle will be formed over the substantially whole area of a side seat | sheet. Thus, the conventional absorbent article tried to improve the touch of a three-dimensional gather by forming a wrinkle in a wide range of side sheets.

特開平１０−２４３９６０号公報Japanese Patent Laid-Open No. 10-243960 特開２００７−０００３３９号公報JP 2007-000339 A 特開２０１３−１２３４４７号公報JP 2013-123447 A

しかしながら，立体ギャザーを形成するサイドシートは，不織布などの柔らかいシート部材で構成されているのに対し，立体ギャザー用の弾性伸縮部材は，糸ゴムなどのような比較的肌触りの硬い伸縮部材で構成されている。このため，立体ギャザーを形成すると，比較的肌触りの硬い弾性伸縮部材が，ほぼ直接的に着用者の肌に触れることとなる。また，立体ギャザー用の弾性伸縮部材は，着用者が吸収性物品を装着している間，着用者の肌に常に触れ続ける。さらに，着用者が歩行や寝返りなどの動作を行うと，立体ギャザー用の弾性伸縮部材が着用者の肌に擦れることもある。このため，従来の吸収性物品のように，弾性伸縮部材がサイドシートの長手方向のほぼ全域に亘って固定されたものであると，長時間吸収性物品を使用する着用者に対して，弾性伸縮部材の硬さに起因した不快感を与えるおそれがあった。 However, the side sheet forming the three-dimensional gather is composed of a soft sheet member such as a non-woven fabric, while the elastic stretch member for the three-dimensional gather is composed of a relatively soft stretch member such as rubber thread. Has been. For this reason, when a three-dimensional gather is formed, the elastic elastic member having a relatively soft touch comes into direct contact with the wearer's skin. Moreover, the elastic elastic member for three-dimensional gathers always touches the wearer's skin while the wearer wears the absorbent article. Furthermore, when the wearer performs an operation such as walking or turning over, the elastic elastic member for three-dimensional gathering may rub against the wearer's skin. For this reason, when the elastic elastic member is fixed over almost the entire region in the longitudinal direction of the side sheet as in the conventional absorbent article, it is elastic to the wearer who uses the absorbent article for a long time. There was a risk of discomfort due to the hardness of the elastic member.

また，左右一対の立体ギャザーは，サイドシートの先端に固定された弾性伸縮部材の収縮力を利用して起立するものである。このため，一般的な立体ギャザーは，サイドシートが弾性伸縮部材によって引っ張られるようにして，幅方向内側に傾倒するように起立する。しかしながら，弾性伸縮部材によって引っ張られている状態において，この左右のサイドシートは，柔軟に幅方向外側に向かって開いたり，自由に伸び縮みすることができない。このため，従来の吸収性物品は，例えば，左右のサイドシートの間に便などの固形物が排泄された場合であっても，固形物をサイドシートの間に収容し続けておくことが難しいとされていた。 Further, the pair of left and right three-dimensional gathers stands up by using the contraction force of the elastic elastic member fixed to the tip of the side seat. For this reason, a general three-dimensional gather stands up so that the side sheet is tilted inward in the width direction so as to be pulled by the elastic elastic member. However, in the state of being pulled by the elastic elastic member, the left and right side seats cannot be flexibly opened toward the outer side in the width direction, and cannot freely expand and contract. For this reason, it is difficult for conventional absorbent articles to keep the solid matter between the side sheets even when solid matter such as feces is excreted between the left and right side sheets. It was said.

このため，現在では，肌触りが良く，便などの固形物を収容しやすい立体ギャザーを備えた吸収性物品が求められている。 For this reason, at present, there is a demand for an absorbent article having a three-dimensional gather that has a good touch and can easily store solids such as stool.

そこで，本発明の発明者は，従来発明の問題の解決手段について鋭意検討した結果，立体ギャザーのうち，少なくとも股下部の中央に，弾性伸縮部材による伸縮性が付与されていない中央非伸縮部を形成することとした。このように，立体ギャザーに中央非伸縮部を形成することにより，この中央非伸縮部の肌触りが良くなるため，吸収性物品の装着感を向上させることができる。また，中央非伸縮部においては，サイドシートが弾性伸縮部材によって引っ張られないため，自由に展開したり伸び縮みするようになる。これにより，中央非伸縮部に，便などの固形物を収容可能な空間（ポケット）が形成されるようになり，このような固形物を長時間安定的に留めておくことができる。そして，本発明者は，上記知見に基づけば，従来技術の課題を解決できることに想到し，本発明を完成させた。具体的に説明すると，本発明は以下の構成を有する。 Therefore, the inventors of the present invention have intensively studied the means for solving the problems of the conventional invention. It was decided to form. In this way, by forming the central non-stretchable portion in the three-dimensional gather, the touch of the central non-stretchable portion is improved, so that the wearing feeling of the absorbent article can be improved. Further, in the central non-stretchable portion, the side seat is not pulled by the elastic stretchable member, so that it can freely expand and contract. As a result, a space (pocket) capable of accommodating solid matter such as feces is formed in the central non-stretchable portion, and such solid matter can be stably retained for a long time. The inventor has conceived that the problems of the prior art can be solved based on the above knowledge, and has completed the present invention. More specifically, the present invention has the following configuration.

本発明は，使い捨ておむつなどの吸収性物品に関する。
本発明の吸収性物品は，吸収性本体１０と，左右一対のサイドシート２０と，を備える。吸収性本体１０は，着用者の腹部に接する前身頃１，着用者の背部に接する後身頃２，及びこれらの間に位置する股下部３に，長手方向に区分されている。また，一対のサイドシート２０は，吸収性本体１０の肌対向面側において，吸収性本体１０の幅方向の左右両側に配設されるシート部材である。
一対のサイドシート２０は，接合線２１と，接合領域２２と，起立領域２３と，を有する。接合線２１は，吸収性本体１０の長手方向に沿って延びる線であり，接合領域２２と起立領域２３との境界線に相当する。接合領域２２は，接合線２１よりも幅方向の外側において，吸収性本体１０の肌対向面に接合された領域である。起立領域２３は，接合線２１よりも幅方向の内側の領域である。
起立領域２３は，接合部分２３ａ，２３ｂと，自由部分２３ｃと，を有している。接合部分２３ａ，２３ｂは，長手方向の前後両端側において，吸収性本体１０の肌対向面に接合された部分である。自由部分２３ｃは，接合部分２３ａ，２３ｂの長手方向の間に位置し，吸収性本体１０の肌対向面に接合されていない部分である。
この自由部分２３ｃが吸収性本体１０から離れて起立することにより，立体ギャザーが形成される。
ここで，自由部分２３ｃは，前側伸縮部３０と，後側伸縮部４０と，中央非伸縮部５０と，を有する。前側伸縮部３０は，長手方向に沿った伸長状態で前側立体ギャザー伸縮部材３１が固定されていることにより伸縮性が付与された領域であって，前身頃１寄りに位置する。また，後側伸縮部４０は，長手方向に沿った伸長状態で後側立体ギャザー伸縮部材４１が固定されていることにより伸縮性が付与された領域であって，後身頃２寄りに位置する。つまり，相対的にみて，前側伸縮部３０は，後側伸縮部４０よりも前身頃１寄りに位置し，後側伸縮部４０は，前側伸縮部３０よりも後身頃２寄りに位置している。そして，前側伸縮部３０と後側伸縮部４０との間には，伸縮性が付与されていない中央非伸縮部５０が形成されている。 The present invention relates to an absorbent article such as a disposable diaper.
The absorbent article of the present invention includes an absorbent main body 10 and a pair of left and right side sheets 20. The absorbent main body 10 is divided in the longitudinal direction into a front body 1 in contact with the wearer's abdomen, a back body 2 in contact with the back of the wearer, and a crotch 3 positioned therebetween. The pair of side sheets 20 are sheet members disposed on the left and right sides in the width direction of the absorbent main body 10 on the skin facing surface side of the absorbent main body 10.
The pair of side sheets 20 includes a joining line 21, a joining region 22, and a standing region 23. The joining line 21 is a line extending along the longitudinal direction of the absorbent main body 10, and corresponds to a boundary line between the joining region 22 and the standing region 23. The bonding region 22 is a region bonded to the skin facing surface of the absorbent main body 10 on the outer side in the width direction than the bonding line 21. The standing region 23 is a region on the inner side in the width direction from the bonding line 21.
The standing region 23 includes joint portions 23a and 23b and a free portion 23c. The joint portions 23a and 23b are portions joined to the skin facing surface of the absorbent main body 10 on both front and rear end sides in the longitudinal direction. The free part 23c is a part which is located between the longitudinal directions of the joint parts 23a and 23b and is not joined to the skin facing surface of the absorbent main body 10.
The free portion 23c stands up away from the absorbent main body 10, whereby a three-dimensional gather is formed.
Here, the free part 23 c includes a front side stretchable part 30, a rear side stretchable part 40, and a central non-stretchable part 50. The front expansion / contraction part 30 is an area to which stretchability is imparted by the front three-dimensional gather expansion / contraction member 31 being fixed in an extended state along the longitudinal direction, and is located closer to the front body 1. Further, the rear stretchable portion 40 is an area to which stretchability is imparted by the rear three-dimensional gather stretchable member 41 being fixed in an elongated state along the longitudinal direction, and is located closer to the back body 2. That is, relatively, the front elastic part 30 is located closer to the front body 1 than the rear elastic part 40, and the rear elastic part 40 is located closer to the rear body 2 than the front elastic part 30. . And between the front side expansion-contraction part 30 and the back side expansion-contraction part 40, the center non-expanding part 50 to which the elasticity is not provided is formed.

上記構成のように，前側立体ギャザー伸縮部材３１と後側立体ギャザー伸縮部材４１によって，前側伸縮部３０と後側伸縮部４０を形成することで，これら伸縮部材３１，４１の収縮力を利用してサイドシート２０の自由部分２３ｃを起立させることができる。これにより，立体ギャザーが形成される。他方，本発明では，前側伸縮部３０と後側伸縮部４０の間に伸縮性のない中央非伸縮部５０を形成する。中央非伸縮部５０は，吸収性物品の股下部３に形成される。この中央非伸縮部５０には，例えば糸ゴムなどの弾性伸縮部材が存在しないため，不織布などで形成されたサイドシート２０の柔らかさが，着用者に伝わる。このため，中央非伸縮部５０は肌触りが良く，長時間着用者の肌に触れていても不快感を与えにくい。よって，吸収性物品の着用感が向上する。さらに，中央非伸縮部５０には弾性伸縮部材による張力が付加されていないため，この中央非伸縮部５０において，サイドシート２０は，自由に幅方向の外側に向かって膨らんだり広がったりすることができる。これにより，中央非伸縮部５０に，便などの固形物を収容可能な空間（ポケット）が形成され，このような固形物を長時間安定的に留めておくことができる。さらに，中央非伸縮部５０の前後に前側伸縮部３０と後側伸縮部４０を設けることで，便などの固形物が漏出しやすい箇所にギャザーを集中させることができるため，効率的に横漏れを防止することができる。また，前側伸縮部３０と後側伸縮部４０を設けておくことで，中央非伸縮部５０に相当するサイドシート２０が伸縮可能（拡張可能）な面積が大きくなる。さらに，前側伸縮部３０と後側伸縮部４０の間に中央非伸縮部５０が位置することで，この長手方向の中央に相当する中央非伸縮部５０において，吸収性物品が真っ直ぐに伸びやすくなる。このため，吸収性物品の立体形状を整えることができ，吸収性物品の外観が良くなり，また，吸収性物品を着用しやすくなる。 As in the above configuration, the front side stretchable member 30 and the rear side stretchable member 40 are formed by the front side three-dimensional gather stretchable member 31 and the rear side three-dimensional gather stretchable member 41, so that the shrinkage force of these stretchable members 31, 41 is utilized. Thus, the free portion 23c of the side seat 20 can be erected. Thereby, a three-dimensional gather is formed. On the other hand, in the present invention, a non-stretchable central non-stretchable portion 50 is formed between the front stretchable portion 30 and the rear stretchable portion 40. The center non-stretchable part 50 is formed in the crotch part 3 of the absorbent article. Since there is no elastic elastic member such as thread rubber in the central non-expandable portion 50, the softness of the side sheet 20 formed of a nonwoven fabric or the like is transmitted to the wearer. For this reason, the center non-stretchable part 50 has a good touch, and even if it touches a wearer's skin for a long time, it is hard to give a discomfort. Therefore, the wearing feeling of the absorbent article is improved. Furthermore, since the tension by the elastic stretchable member is not applied to the central non-stretchable portion 50, the side seat 20 can freely bulge or spread outward in the width direction in the central non-stretchable portion 50. it can. As a result, a space (pocket) in which solid matter such as feces can be accommodated is formed in the central non-stretchable portion 50, and such solid matter can be stably held for a long time. Further, by providing the front elastic part 30 and the rear elastic part 40 before and after the central non-expandable part 50, gathers can be concentrated at places where solids such as stool are likely to leak, so that side leakage can be efficiently performed. Can be prevented. Moreover, by providing the front side expansion / contraction part 30 and the rear side expansion / contraction part 40, the area where the side seat 20 corresponding to the center non-expansion / contraction part 50 can expand / contract becomes large. Further, since the central non-stretchable portion 50 is positioned between the front stretchable portion 30 and the rear stretchable portion 40, the absorbent article is easily stretched straight in the central non-stretchable portion 50 corresponding to the center in the longitudinal direction. . For this reason, the three-dimensional shape of an absorbent article can be arranged, the external appearance of an absorbent article becomes good, and it becomes easy to wear an absorbent article.

本発明の吸収性物品において，自由部分２３ｃは，さらに，前側非伸縮部６０と後側非伸縮部７０を有することが好ましい。前側非伸縮部６０は，長手方向の前端側の接合部分２３ａと前側伸縮部３０との間に位置する，伸縮性が付与されていない領域である。また，後側非伸縮部７０は，長手方向の後端側の接合部分２３ｂと後側伸縮部４０との間に位置する，伸縮性が付与されていない領域である。 In the absorbent article of the present invention, the free portion 23c preferably further includes a front non-stretchable portion 60 and a rear non-stretchable portion 70. The front non-stretchable portion 60 is a region which is located between the joint portion 23a on the front end side in the longitudinal direction and the front stretchable portion 30 and is not provided with stretchability. The rear non-stretchable portion 70 is a region that is located between the joining portion 23b on the rear end side in the longitudinal direction and the rear stretchable portion 40 and is not provided with stretchability.

上記構成のように，前側非伸縮部６０と後側非伸縮部７０をさらに形成することで，弾性伸縮部材などの存在しない領域がさらに広くなる。このため，立体ギャザーの全体が長時間着用者の肌に触れていても，この着用者に対しても不快感を与えにくくなる。これにより，吸収性物品の着用感がさらに向上する。また，前側非伸縮部６０と後側非伸縮部７０をさらに形成することで，上述した横漏れ防止効果や，立体形状の整形効果がさらに高まる。 By forming the front non-stretchable part 60 and the rear non-stretchable part 70 as in the above configuration, the area where no elastic stretchable member or the like is present is further widened. For this reason, even if the whole of the three-dimensional gather is in contact with the wearer's skin for a long time, it is difficult to give discomfort to the wearer. Thereby, the wearing feeling of an absorbent article further improves. Further, by further forming the front non-stretchable portion 60 and the rear non-stretchable portion 70, the above-described side leakage prevention effect and the three-dimensional shape shaping effect are further enhanced.

本発明の吸収性物品において，中央非伸縮部５０，前側非伸縮部６０，及び後側非伸縮部７０の長さの合計値（ＮＬ）は，前側伸縮部３０及び後側伸縮部４０の長さの合計値（ＥＬ）よりも長いことが好ましい。 In the absorbent article of the present invention, the total length (NL) of the center non-stretchable portion 50, the front non-stretchable portion 60, and the rear non-stretchable portion 70 is the length of the front stretchable portion 30 and the rear stretchable portion 40. It is preferably longer than the total value (EL).

非伸縮部５０，６０，７０の合計長さ（ＮＬ）が短いと，上述した本発明の効果が効率よく発揮されないおそれがある。この点，少なくとも，非伸縮部５０，６０，７０の合計長さ（ＮＬ）を，伸縮部３０，４０の合計長さ（ＥＬ）よりも長くすることで，本発明の効果が十分に発揮される。 If the total length (NL) of the non-stretchable parts 50, 60, 70 is short, the above-described effects of the present invention may not be exhibited efficiently. In this respect, at least the total length (NL) of the non-stretchable portions 50, 60, 70 is made longer than the total length (EL) of the stretchable portions 30, 40, so that the effect of the present invention is sufficiently exhibited. The

本発明の吸収性物品は，さらに，一又は複数のレッグギャザー伸縮部材８１を有することが好ましい。レッグギャザー伸縮部材８１は，サイドシート２０の接合領域２２に対し，長手方向に沿った伸長状態で固定された伸縮部材である。レッグギャザー伸縮部材８１は，少なくとも，前側非伸縮部６０に相当する位置から後側非伸縮部７０に相当する位置まで配置されていることが好ましい。 It is preferable that the absorbent article of the present invention further includes one or a plurality of leg gather elastic members 81. The leg gather expansion / contraction member 81 is an expansion / contraction member fixed to the joining region 22 of the side sheet 20 in an extended state along the longitudinal direction. The leg gather elastic member 81 is preferably arranged at least from a position corresponding to the front non-expandable part 60 to a position corresponding to the rear non-expandable part 70.

上記構成のように，レッグギャザー伸縮部材８１を設けることで，着用者の脚周りにもギャザーが形成されるようになり，着用者の脚周りに対する吸収性物品のフィット性が向上する。また，本発明では，中央非伸縮部５０，前側非伸縮部６０，及び後側非伸縮部７０といった弾性伸縮部材が配置されていない部位が存在するため，これらの部位において吸収性物品のフィット性が，一般的な従来の吸収性物品のフィット性と比べて低下することも懸念される。この点，本発明では，レッグギャザー伸縮部材８１を設けることにより，吸収性物品のフィット性を維持することができる。 By providing the leg gather expansion / contraction member 81 as described above, gathers are also formed around the wearer's legs, and the fit of the absorbent article to the wearer's legs is improved. Further, in the present invention, there are portions where the elastic elastic members such as the central non-stretchable portion 50, the front non-stretchable portion 60, and the rear non-stretchable portion 70 are not disposed. However, there is also a concern that it may be lower than the fit of a conventional conventional absorbent article. In this regard, in the present invention, by providing the leg gather elastic member 81, the fit of the absorbent article can be maintained.

本発明の吸収性物品は，さらに，一又は複数の中央補強用伸縮部材８２を有することが好ましい。中央補強用伸縮部材８２は，レッグギャザー伸縮部材８１と接合線２１との間において，長手方向に沿った伸長状態で固定されている。さらに，この中央補強用伸縮部材８２は，中央非伸縮部５０に相当する長さ範囲内に配置されている。 The absorbent article of the present invention preferably further includes one or a plurality of central reinforcing elastic members 82. The central reinforcing expansion / contraction member 82 is fixed in an extended state along the longitudinal direction between the leg gather expansion / contraction member 81 and the joining line 21. Further, the central reinforcing expansion / contraction member 82 is disposed within a length range corresponding to the central non-expandable portion 50.

上記構成のように，中央非伸縮部５０に相当する長さ範囲内にのみ，中央補強用伸縮部材８２を設けることで，中央非伸縮部５０におけるフィット性を高めることができる。さらに，中央補強用伸縮部材８２を設けることで，サイドシート２０の中央非伸縮部５０の底部付近が伸縮力の作用によってつぼめられるため，便などの固形物を収容するための空間（ポケット）が形成されやすくなる。これにより，効率的に固形物を留めておくことができる。また，中央補強用伸縮部材８２を，弾性伸縮部材が存在する前側伸縮部３０や後側伸縮部４０に相当する範囲にまで設けると，弾性伸縮部材による圧迫力が強くなり過ぎてしまい，却って吸収性物品の着用感が低下するおそれがある。このため，中央補強用伸縮部材８２は，中央非伸縮部５０に相当する長さ範囲内にのみ存在することが好ましい。 By providing the central reinforcing expansion / contraction member 82 only within the length range corresponding to the central non-expandable portion 50 as in the above configuration, the fit in the central non-expandable portion 50 can be enhanced. Furthermore, by providing the central reinforcing elastic member 82, the vicinity of the bottom of the central non-expandable portion 50 of the side seat 20 is swallowed by the action of the elastic force, so that there is a space (pocket) for storing solid matter such as stool. It becomes easier to form. Thereby, a solid substance can be kept efficiently. If the central reinforcing expansion / contraction member 82 is provided in a range corresponding to the front expansion / contraction portion 30 or the rear expansion / contraction portion 40 where the elastic expansion / contraction member exists, the compression force by the elastic expansion / contraction member becomes too strong and absorbed. There is a possibility that the wearing feeling of the property article may be lowered. For this reason, it is preferable that the central reinforcing expansion / contraction member 82 exists only within a length range corresponding to the central non-expandable portion 50.

本発明の吸収性物品は，さらに，一又は複数の前側補強用伸縮部材８３と，一又は複数の後側補強用伸縮部材８４と，を有することが好ましい。前側補強用伸縮部材８３と後側補強用伸縮部材８４は，レッグギャザー伸縮部材８１と接合線２１との間において，長手方向に沿った伸長状態で固定された伸縮部材である。前側補強用伸縮部材８３は，前側非伸縮部６０に相当する長さ範囲内に配置されていることが好ましく，後側補強用伸縮部材８４は，後側非伸縮部７０に相当する長さ範囲内に配置されていることが好ましい。 The absorbent article of the present invention preferably further includes one or more front reinforcing elastic members 83 and one or more rear reinforcing elastic members 84. The front reinforcing expansion / contraction member 83 and the rear reinforcing expansion / contraction member 84 are expansion / contraction members fixed in an extended state along the longitudinal direction between the leg gather expansion / contraction member 81 and the joining line 21. The front reinforcing elastic member 83 is preferably disposed within a length range corresponding to the front non-expandable portion 60, and the rear reinforcing elastic member 84 is a length range corresponding to the rear non-expandable portion 70. It is preferable to arrange in the inside.

上記構成のように，前側非伸縮部６０及び後側非伸縮部７０に相当する長さ範囲内にのみ，それぞれ前側補強用伸縮部材８３及び後側補強用伸縮部材８４を設けることで，これらの前側非伸縮部６０及び後側非伸縮部７０におけるフィット性を高めることができる。なお，前側補強用伸縮部材８３及び後側補強用伸縮部材８４は，中央補強用伸縮部材８２と併用することも可能である。 By providing the front reinforcing elastic member 83 and the rear reinforcing elastic member 84 only within the length range corresponding to the front non-expandable part 60 and the rear non-expandable part 70 as described above, The fitting property in the front non-stretchable part 60 and the rear non-stretchable part 70 can be improved. Note that the front reinforcing elastic member 83 and the rear reinforcing elastic member 84 can be used together with the central reinforcing elastic member 82.

本発明の吸収性物品において，前側伸縮部３０は，長手方向の前端側の接合部分２３ａに達するように形成されており，且つ，後側伸縮部４０は，長手方向の後端側の接合部分２３ｂに達するように形成されていることとしてもよい。つまり，本発明の吸収性物品は，上述した前側非伸縮部６０と後側非伸縮部７０とを省略することもできる。 In the absorbent article of the present invention, the front side stretchable part 30 is formed so as to reach the joint part 23a on the front end side in the longitudinal direction, and the rear side stretchable part 40 is a joint part on the rear end side in the longitudinal direction. It may be formed so as to reach 23b. That is, in the absorbent article of the present invention, the front non-stretchable portion 60 and the rear non-stretchable portion 70 described above can be omitted.

上記構成のように，中央非伸縮部５０を残しつつ，前側非伸縮部６０と後側非伸縮部７０とを省略することで，前身頃１及び後身頃２側のフィット性を高めることができる。 As described above, the front non-stretchable portion 60 and the back non-stretchable portion 70 are omitted while leaving the central non-stretchable portion 50, so that the fit of the front body 1 and the back body 2 can be improved. .

本発明によれば，肌触りが良く，便などの固形物を収容しやすい立体ギャザーを備えた吸収性物品を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the absorptive article provided with the three-dimensional gather which has a good touch and is easy to accommodate solid matters, such as stool, can be provided.

図１は，本発明に係る吸収性物品の第１の実施形態を示した斜視図である。FIG. 1 is a perspective view showing a first embodiment of an absorbent article according to the present invention. 図２は，本発明に係る吸収性物品の第１の実施形態を示した平面図である。FIG. 2 is a plan view showing the first embodiment of the absorbent article according to the present invention. 図３は，吸収性物品の断面図である。図３（ａ）は，図２のＡ−Ａ線における断面図を示しており，図３（ｂ）は，図２のＢ−Ｂ線における断面図を示している。FIG. 3 is a cross-sectional view of the absorbent article. 3A shows a cross-sectional view taken along line AA in FIG. 2, and FIG. 3B shows a cross-sectional view taken along line BB in FIG. 図４は，本発明に係る吸収性物品の第２の実施形態を示した平面図である。FIG. 4 is a plan view showing a second embodiment of the absorbent article according to the present invention. 図５は，本発明に係る吸収性物品の第３の実施形態を示した平面図である。FIG. 5 is a plan view showing a third embodiment of the absorbent article according to the present invention. 図６は，本発明に係る吸収性物品の第４の実施形態を示した平面図である。FIG. 6 is a plan view showing a fourth embodiment of the absorbent article according to the present invention.

以下，図面を用いて本発明を実施するための形態について説明する。本発明は，以下に説明する形態に限定されるものではなく，以下の形態から当業者が自明な範囲で適宜修正したものも含む。 Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below, but includes those appropriately modified by those skilled in the art from the following embodiments.

本願明細書において，「長手方向」とは，吸収性物品の前身頃と後身頃とを結ぶ方向を意味する。また，「幅方向」とは，長手方向に平面的に直交する方向を意味する。本願の図において，「長手方向」はＹ軸で示され，「幅方向」はＸ軸で示されている。
本願明細書において，「肌対向面」とは，吸収性物品の着用時において，着用者の肌に向かい合う面を意味する。また，「肌非対向面」とは，吸収性物品の着用時において，着用者の肌に向かい合わない面，すなわち肌対向面の反対側の面を意味する。
本願明細書において，「Ａ〜Ｂ」とは，「Ａ以上Ｂ以下」であることを意味する。 In the present specification, the “longitudinal direction” means a direction connecting the front body and the back body of the absorbent article. The “width direction” means a direction orthogonal to the longitudinal direction in a plane. In the drawings of the present application, the “longitudinal direction” is indicated by the Y axis, and the “width direction” is indicated by the X axis.
In the present specification, the “skin facing surface” means a surface facing the wearer's skin when the absorbent article is worn. The “non-skin facing surface” means a surface that does not face the wearer's skin when the absorbent article is worn, that is, a surface opposite to the skin facing surface.
In the present specification, “A to B” means “A or more and B or less”.

図１は，本発明の第１の実施形態に係る吸収性物品を示している。図１に示された例において，吸収性物品は，テープ型の使い捨ておむつである。図１に示されるように，テープ型の使い捨ておむつは，後身頃の両側部に取り付けられたファスニングテープを前身頃に止め付けることにより装着されるタイプの使い捨ておむつである。以下では，テープ型の使い捨ておむつを例に挙げて，本発明の吸収性物品について詳しく説明する。ただし，本発明は，テープ型の使い捨ておむつに限定されるものではない。例えば，本発明は，パンツ型の使い捨ておむつや，尿取りパッド，吸収パッド，又は生理用ナプキンなどのように，排泄された体液を吸収保持することを目的として，着用者の股下に装着される吸収性物品に広く適用することができる。 FIG. 1 shows an absorbent article according to the first embodiment of the present invention. In the example shown in FIG. 1, the absorbent article is a tape-type disposable diaper. As shown in FIG. 1, the tape-type disposable diaper is a type of disposable diaper that is worn by fastening fastening tapes attached to both sides of the back body to the front body. Below, a tape type disposable diaper is mentioned as an example and the absorptive article of the present invention is explained in detail. However, the present invention is not limited to a tape-type disposable diaper. For example, the present invention is worn on the inseam of a wearer for the purpose of absorbing and holding excreted body fluids such as pants-type disposable diapers, urine-absorbing pads, absorbent pads, or sanitary napkins. It can be widely applied to absorbent articles.

［１．第１の実施形態］
まず，図１から図３を参照して，本発明の吸収性物品１００の第１の実施形態について説明する。図１は，第１の実施形態の係る吸収性物品１００を示した斜視図であり，図２は，第１の実施形態に係る吸収性物品１００を示した展開図である。また，図３（ａ）は，図２のＡ−Ａ線における断面図を示しており，図３（ｂ）は，図２のＢ−Ｂ線における断面図を示している。 [1. First Embodiment]
First, with reference to FIGS. 1 to 3, a first embodiment of the absorbent article 100 of the present invention will be described. FIG. 1 is a perspective view showing an absorbent article 100 according to the first embodiment, and FIG. 2 is a development view showing the absorbent article 100 according to the first embodiment. 3A shows a cross-sectional view taken along the line AA in FIG. 2, and FIG. 3B shows a cross-sectional view taken along the line BB in FIG.

図１及び図２に示されるように，吸収性物品１００は，長手方向において，着用者の腹部に接する前身頃１と，着用者の背部に接する後身頃２と，前身頃１と後身頃２の間に位置し着用者の股下に接する股下部３とに区分される。また，図３の断面図に示されるように，吸収性物品１００は，吸収性本体１０と，左右一対のサイドシート２０と，を備えている。吸収性本体１０は，トップシート１１と，バックシート１２と，これらのシート１１，１２の間に介在する吸収体１３とを含む。また，一対のサイドシート２０により，吸収性本体１０の幅方向左右両側に，一対の立体ギャザーが形成される。なお，図３では，吸収性物品の構造を分り易くするために各シート部材に厚みを持たせているが，実際の各シート部材は極めて薄いシート状の部材である。 As shown in FIG. 1 and FIG. 2, the absorbent article 100 includes a front body 1 that contacts the abdomen of the wearer, a back body 2 that contacts the back of the wearer, a front body 1 and a back body 2 in the longitudinal direction. It is divided into the crotch part 3 which is located between and touches a wearer's crotch. As shown in the cross-sectional view of FIG. 3, the absorbent article 100 includes an absorbent main body 10 and a pair of left and right side sheets 20. The absorbent main body 10 includes a top sheet 11, a back sheet 12, and an absorber 13 interposed between these sheets 11 and 12. Further, a pair of three-dimensional gathers are formed by the pair of side sheets 20 on both the left and right sides of the absorbent main body 10 in the width direction. In FIG. 3, each sheet member is given a thickness in order to make the structure of the absorbent article easier to understand, but each actual sheet member is a very thin sheet-like member.

まず，吸収性本体１０の基本構成について説明する。吸収性本体１０を構成するトップシート１１は，着用者の股下部の肌に直接接し，尿などの液体を吸収体１３へ透過させるための部材である。このため，トップシート１１は，柔軟性が高い液透過性材料で構成される。また，トップシート１１は，吸収体１３の肌対向面を被覆するように配置される。トップシート１１を構成する液透過性材料の例は，織布，不織布，又は多孔性フィルムである。また，トップシート１１としては，例えばポリプロピレンやポリエチレン，ポリエステル，ナイロンのような熱可塑性樹脂の繊維を親水化処理してさらに不織布にしたものを用いることとしてもよい。 First, the basic configuration of the absorbent main body 10 will be described. The top sheet 11 constituting the absorbent main body 10 is a member that is in direct contact with the skin of the wearer's crotch and allows liquid such as urine to pass through the absorbent body 13. For this reason, the top sheet 11 is made of a liquid-permeable material having high flexibility. Moreover, the top sheet 11 is arrange | positioned so that the skin opposing surface of the absorber 13 may be coat | covered. Examples of the liquid permeable material constituting the top sheet 11 are a woven fabric, a non-woven fabric, or a porous film. Moreover, as the top sheet 11, it is good also as, for example, using the fiber of the thermoplastic resin like polypropylene, polyethylene, polyester, nylon, and making it the nonwoven fabric further, and making it into a nonwoven fabric.

バックシート１２は，トップシート１１を透過して吸収体１３に吸収された液体が，おむつの外側へ漏出することを防止するための部材である。このため，バックシート１２は，液不透過性材料によって構成される。また，バックシート１２は，吸収体１３の底面からの液漏れを防止するため，吸収体１３の肌非対向面を被覆している。また，図３に示されるように，バックシート１２は，トップシート１１よりも幅広に形成されており，バックシート１２の左右両端部は，トップシート１１の左右両側縁よりも外側に延出していることが好ましい。バックシート１２を構成する不透過材料の例は，ポリエチレン樹脂からなる液不透過性のフィルムである。特に，バックシート１２としては，液不透過性を維持しつつ通気性を確保するために，０．１〜４μｍの微細な孔が複数形成された微多孔性ポリエチレンフィルムを用いることが好ましい。 The back sheet 12 is a member for preventing the liquid that has passed through the top sheet 11 and absorbed by the absorber 13 from leaking to the outside of the diaper. For this reason, the back sheet 12 is made of a liquid-impermeable material. Further, the back sheet 12 covers the non-skin facing surface of the absorber 13 in order to prevent liquid leakage from the bottom surface of the absorber 13. Also, as shown in FIG. 3, the back sheet 12 is formed wider than the top sheet 11, and the left and right ends of the back sheet 12 extend outward from the left and right side edges of the top sheet 11. Preferably it is. An example of the impermeable material constituting the back sheet 12 is a liquid impermeable film made of polyethylene resin. In particular, as the back sheet 12, it is preferable to use a microporous polyethylene film in which a plurality of fine pores of 0.1 to 4 μm are formed in order to ensure air permeability while maintaining liquid impermeability.

吸収体１３は，尿などの液体を吸収し，吸収した液体を保持するための部材である。吸収体１３は，液透過性のトップシート１１と，液不透過性のバックシート１２の間に配置される。吸収体１３は，公知の吸収性材料により構成することができる。吸収性材料としては，例えば，フラッフパルプ，高吸水性ポリマー，又は親水性シートを用いることとしてもよい。また，吸収性材料には，フラッフパルプ，高吸水性ポリマー，又は親水性シートのうち１種類を単独で用いてもよいし，２種類以上を併用することとしてもよい。吸収性材料は，通常，単層又は複数層のマット状に形成して用いられる。図１〜図３に示されるように，吸収体１３の周囲においては，トップシート１１とバックシート１２が互いに接合されている。これにより，吸収体１３は，トップシート１１とバックシート１２の接合部によって周囲を囲われたものとなる。 The absorber 13 is a member for absorbing liquid such as urine and holding the absorbed liquid. The absorber 13 is disposed between the liquid-permeable top sheet 11 and the liquid-impermeable back sheet 12. The absorber 13 can be comprised with a well-known absorptive material. As an absorptive material, it is good also as using a fluff pulp, a super absorbent polymer, or a hydrophilic sheet, for example. In addition, as the absorbent material, one kind of fluff pulp, a super absorbent polymer, or a hydrophilic sheet may be used alone, or two or more kinds may be used in combination. The absorbent material is usually used in the form of a single layer or a plurality of layers. As shown in FIGS. 1 to 3, the top sheet 11 and the back sheet 12 are joined to each other around the absorber 13. As a result, the absorber 13 is surrounded by the joint between the top sheet 11 and the back sheet 12.

続いて，立体ギャザーを形成するための構造について詳しく説明する。図１〜図３に示されるように，吸収性本体１０の肌対向面側の幅方向左右両側には，長手方向の全体に亘って，一対のサイドシート２０が重ね合わされている。一対のサイドシート２０は，吸収体１３の両側縁に沿って起立して，尿の横漏れを防止する立体ギャザーを形成するためのシート部材である。例えば，サイドシート２０を構成するシート部材としては，撥水性と通気性を有するシート部材を採用することが好ましい。サイドシート２０としては，例えば，カードエンボスやスパンボンド等の製法により得られた不織布シートを使用することができ，特に防水性及び通気性が高いＳＭＳやＳＭＭＳ等の不織布シートを用いることが好ましい。 Next, a structure for forming a three-dimensional gather will be described in detail. As shown in FIG. 1 to FIG. 3, a pair of side sheets 20 are superimposed on the left and right sides in the width direction on the skin facing surface side of the absorbent main body 10 over the entire longitudinal direction. The pair of side sheets 20 is a sheet member that stands along both side edges of the absorbent body 13 and forms a three-dimensional gather that prevents side leakage of urine. For example, as the sheet member constituting the side sheet 20, it is preferable to employ a sheet member having water repellency and air permeability. As the side sheet 20, for example, a non-woven sheet obtained by a method such as card embossing or spunbonding can be used, and it is particularly preferable to use a non-woven sheet such as SMS or SMMS having high waterproofness and air permeability.

図２及び図３に示されるように，一対のサイドシート２０は，それぞれ，接合線２１と，接合領域２２と，起立領域２３とからなる。サイドシート２０の接合線２１は，長手方向に沿って真っ直ぐに延びた直線状に形成されており，接合領域２２と起立領域２３の間の境界線となっている。また，図３に示されるように，サイドシート２０の接合線２１は，トップシート１１の肌対向面上に形成されていることが好ましい。 As shown in FIGS. 2 and 3, the pair of side sheets 20 includes a joining line 21, a joining region 22, and a standing region 23, respectively. The joining line 21 of the side sheet 20 is formed in a straight line extending straight along the longitudinal direction, and serves as a boundary line between the joining region 22 and the standing region 23. Further, as shown in FIG. 3, the joining line 21 of the side sheet 20 is preferably formed on the skin facing surface of the top sheet 11.

サイドシート２０の接合領域２２は，接合線２１よりも幅方向の外側に位置する領域である。この接合領域２２において，サイドシート２０は，吸収性本体１０の肌対向面上に全面的に接合されている。図３に示されるように，接合領域２２において，サイドシート２０は，トップシート１１の肌対向面上に接合されていることが好ましい。また，図３に示されるように，バックシート１２の左右両端部がトップシート１１から延出している場合，サイドシート２０は，接合領域２２において，バックシート１２の肌対向面上にも接合されていることが好ましい。このように，サイドシート２０を，トップシート１１とバックシート１２の両方に対して接合することで，サイドシート２０が吸収性本体１０から剥がれにくくなる。 The joining region 22 of the side sheet 20 is a region located outside the joining line 21 in the width direction. In the joining region 22, the side sheet 20 is entirely joined on the skin facing surface of the absorbent main body 10. As shown in FIG. 3, in the joining region 22, the side sheet 20 is preferably joined on the skin facing surface of the top sheet 11. As shown in FIG. 3, when the left and right ends of the back sheet 12 extend from the top sheet 11, the side sheet 20 is also bonded to the skin facing surface of the back sheet 12 in the bonding region 22. It is preferable. Thus, the side sheet 20 is hardly peeled off from the absorbent main body 10 by bonding the side sheet 20 to both the top sheet 11 and the back sheet 12.

サイドシート２０の起立領域２３は，接合線２１よりも幅方向の内側に位置する領域である。この起立領域２３は，長手方向に見て，長手方向の前後両端側に位置する接合部分２３ａ，２３ｂと，これらの接合部分２３ａ，２３ｂの間に位置する自由部分２３ｃとに区分されている。前後両端の接合部分２３ａ，２３ｂにおいて，サイドシート２０は，吸収性本体１０（トップシート１１）の肌対向面上に接合されている。なお，図２においては，接合部分２３ａ，２３ｂを分かりやすく示すために，概念的に，この接合部分２３ａ，２３ｂに網掛けを施して示している。他方，接合部分２３ａ，２３ｂの間に位置する自由部分２３ｃにおいて，サイドシート２０は，吸収性本体１０の肌対向面上に接合されていない。このため，サイドシート２０は，起立領域２３の自由部分２３ｃにおいて，吸収性本体１０から離れており，自由に立ち上がることができるようになっている。起立領域２３の自由部分２３ｃは，立体ギャザーを形成する部分となる。このため，起立領域２３の自由部分２３ｃは，長手方向に見て，少なくとも股下部３の全体に亘っており，前身頃１及び後身頃２に到達する長さで形成されていることが好ましい。 The standing region 23 of the side sheet 20 is a region located on the inner side in the width direction than the bonding line 21. The standing region 23 is divided into joint portions 23a and 23b located on both front and rear ends in the longitudinal direction and a free portion 23c located between the joint portions 23a and 23b when viewed in the longitudinal direction. In the joint portions 23a and 23b at the front and rear ends, the side sheet 20 is joined to the skin facing surface of the absorbent main body 10 (top sheet 11). In FIG. 2, in order to show the joint portions 23a and 23b in an easy-to-understand manner, the joint portions 23a and 23b are conceptually shaded. On the other hand, in the free part 23c located between the joining parts 23a and 23b, the side sheet 20 is not joined on the skin facing surface of the absorbent main body 10. For this reason, the side seat 20 is separated from the absorbent main body 10 in the free portion 23c of the standing region 23, and can stand up freely. The free portion 23c of the standing region 23 is a portion that forms a three-dimensional gather. For this reason, it is preferable that the free portion 23c of the standing region 23 is formed to have a length that reaches at least the entire crotch 3 and reaches the front body 1 and the back body 2 when viewed in the longitudinal direction.

なお，上述したサイドシート２０の接合領域２２や，起立領域２３の接合部分２３ａ，２３ｂにおけるシートの接合には，例えば，公知のホットメルト接着剤などを利用することができる。 For example, a known hot melt adhesive may be used for joining the sheet in the joining region 22 of the side sheet 20 and the joining portions 23a and 23b of the standing region 23 described above.

また，図３に示されるように，サイドシート２０の起立領域２３は，幅方向内側の端縁が折り返されて，シート部材が２重に重なった折返部２４を有することが好ましい。サイドシート２０の折返部２４は，サイドシート２０の長手方向全体に亘って形成されている。折返部２４は，図３に示されるように，サイドシート２０の内側端縁を，幅方向の内側に向かって折り返すようにして形成されたものであってもよい。また，図示は省略するが，折返部２４は，サイドシート２０の内側端縁を，幅方向の外側に向かって折り返すようにして形成されたものであってもよい。図１，図２，及び図３（ａ）に示されるように，このサイドシート２０の折返部２４には，一又は複数の立体ギャザー伸縮部材３１，４１を挟み込んで固定することができる。 Further, as shown in FIG. 3, the standing region 23 of the side seat 20 preferably has a folded portion 24 in which the edge on the inner side in the width direction is folded and the sheet member is overlapped. The folded portion 24 of the side sheet 20 is formed over the entire longitudinal direction of the side sheet 20. The folding | returning part 24 may be formed so that the inner side edge of the side seat | sheet 20 may be turned toward the inner side of the width direction, as FIG. 3 shows. Moreover, although illustration is abbreviate | omitted, the folding | turning part 24 may be formed so that the inner side edge of the side seat | sheet 20 may be folded toward the outer side of the width direction. As shown in FIGS. 1, 2, and 3 (a), one or a plurality of three-dimensional gather elastic members 31, 41 can be sandwiched and fixed to the folded portion 24 of the side seat 20.

図１及び図２に示されるように，本発明において，一対のサイドシート２０の起立領域２３の自由部分２３ｃには，それぞれ，一又は複数の前側立体ギャザー伸縮部材３１と，一又は複数の後側立体ギャザー伸縮部材４１とが取り付けられている。前側立体ギャザー伸縮部材３１は，後側立体ギャザー伸縮部材４１と比べて，前身頃１側寄りに設けられており，後側立体ギャザー伸縮部材４１は，前側立体ギャザー伸縮部材３１と比べて，後身頃２側寄りに設けられている。前側立体ギャザー伸縮部材３１と後側立体ギャザー伸縮部材４１は，それぞれ，１本，２本，又は３本以上設けることが可能である。 As shown in FIGS. 1 and 2, in the present invention, the free portions 23 c of the upright regions 23 of the pair of side seats 20 are respectively provided with one or more front three-dimensional gather elastic members 31 and one or more rear members. A side three-dimensional gather elastic member 41 is attached. The front three-dimensional gather expansion / contraction member 31 is provided closer to the front body 1 side than the rear three-dimensional gather expansion / contraction member 41, and the rear three-dimensional gather expansion / contraction member 41 is rearward compared to the front three-dimensional gather expansion / contraction member 31. It is provided near the body 2 side. One, two, or three or more front three-dimensional gather expansion / contraction members 31 and rear three-dimensional gather expansion / contraction members 41 can be provided, respectively.

また，前側立体ギャザー伸縮部材３１と後側立体ギャザー伸縮部材４１は，それぞれ，長手方向に沿った伸長状態で，サイドシート２０の自由部分２３ｃに固定されている。具体的には，前側立体ギャザー伸縮部材３１と後側立体ギャザー伸縮部材４１は，サイドシート２０の自由部分２３ｃに形成された折返部２４に挟み込んで固定されていることが好ましい。このようにして，各立体ギャザー伸縮部材３１，４１が伸長状態で固定されていることで，これらの立体ギャザー伸縮部材３１，４１が収縮したときに，サイドシート２０の自由部分２３ｃが長手方向に縮まる。これにより，サイドシート２０の自由部分２３ｃが，各立体ギャザー伸縮部材３１，４１の収縮力を利用して，吸収性本体１０の肌対向面から離れるように起立する。従って，サイドシート２０の自由部分２３ｃによって，着用者の肌の方向に向かって起立する立体ギャザーが形成されることとなる。なお，各立体ギャザー伸縮部材３１，４１をサイドシート２０に固定するときには，各立体ギャザー伸縮部材３１，４１に直接接着剤を塗布して，引き伸ばされた状態のままで，サイドシート２０に固定すればよい。また，サイドシート２０に接着剤を塗布した後，引き伸ばされた状態の各立体ギャザー伸縮部材３１，４１をサイドシート２０に取り付けることとしてもよい。 In addition, the front three-dimensional gather elastic member 31 and the rear three-dimensional gather elastic member 41 are each fixed to the free portion 23c of the side seat 20 in an extended state along the longitudinal direction. Specifically, it is preferable that the front three-dimensional gather expansion / contraction member 31 and the rear three-dimensional gather expansion / contraction member 41 are sandwiched and fixed by the folded portion 24 formed in the free portion 23 c of the side seat 20. In this way, since the three-dimensional gather elastic members 31, 41 are fixed in an extended state, when these three-dimensional gather elastic members 31, 41 contract, the free portion 23c of the side seat 20 extends in the longitudinal direction. Shrink. Thereby, the free part 23c of the side seat 20 stands up so that it may leave | separate from the skin opposing surface of the absorptive main body 10 using the contraction force of each solid gather expansion-contraction member 31 and 41. FIG. Accordingly, a three-dimensional gather standing up toward the wearer's skin is formed by the free portion 23 c of the side seat 20. When fixing the three-dimensional gather elastic members 31, 41 to the side sheet 20, the adhesive is directly applied to the three-dimensional gather elastic members 31, 41, and the three-dimensional gather elastic members 31, 41 are fixed to the side sheet 20 while being stretched. That's fine. In addition, after applying an adhesive to the side sheet 20, the three-dimensional gather elastic members 31 and 41 in a stretched state may be attached to the side sheet 20.

このように，前側立体ギャザー伸縮部材３１と後側立体ギャザー伸縮部材４１を伸長状態でサイドシート２０の自由部分２３ｃに固定することで，この自由部分２３ｃには，それぞれ，前側伸縮部３０と後側伸縮部４０とが形成される。つまり，前側伸縮部３０は，前側立体ギャザー伸縮部材３１によって伸縮性が付与された部分であり，後側伸縮部４０は，後側立体ギャザー伸縮部材４１によって伸縮性が付与された部分である。前側伸縮部３０と後側伸縮部４０においては，サイドシート２０が縮まることで，サイドシート２０に皺（ギャザー）が形成される。 Thus, by fixing the front three-dimensional gather expansion / contraction member 31 and the rear three-dimensional gather expansion / contraction member 41 to the free portion 23c of the side seat 20 in an expanded state, the free portion 23c includes the front expansion / contraction portion 30 and the rear A side elastic part 40 is formed. That is, the front side expansion / contraction part 30 is a part provided with elasticity by the front side three-dimensional gather expansion / contraction member 31, and the rear side expansion / contraction part 40 is a part provided with elasticity by the rear side three-dimensional gather expansion / contraction member 41. In the front side expansion / contraction part 30 and the rear side expansion / contraction part 40, the side sheet | seat 20 shrinks, and a crease (gather) is formed in the side sheet | seat 20. As shown in FIG.

ここで，本発明において，前側伸縮部３０（前側立体ギャザー伸縮部材３１）と後側伸縮部４０（後側立体ギャザー伸縮部材４１）の間には，長手方向に沿って，間隔が設けられている。この間隔は，サイドシート２０の自由部分２３ｃに，伸縮性が付与されていない中央非伸縮部５０を形成する。このように，本発明の吸収性物品１００では，前側伸縮部３０と後側伸縮部４０との間に，伸縮性が付与されていない中央非伸縮部５０が形成されている。中央非伸縮部５０は，少なくとも，サイドシート２０の長手方向の中央（吸収性物品１００を長手方向に二分する中心線Ｂ−Ｂ）を含む領域であることが好ましい。 Here, in the present invention, a gap is provided along the longitudinal direction between the front elastic part 30 (front three-dimensional gather elastic member 31) and the rear elastic part 40 (rear three-dimensional gather elastic member 41). Yes. This interval forms a central non-stretchable portion 50 that is not provided with stretchability in the free portion 23 c of the side seat 20. As described above, in the absorbent article 100 of the present invention, the central non-stretchable portion 50 to which stretchability is not imparted is formed between the front stretchable portion 30 and the rear stretchable portion 40. The center non-stretchable portion 50 is preferably a region including at least the center in the longitudinal direction of the side sheet 20 (center line BB that bisects the absorbent article 100 in the longitudinal direction).

本発明において，中央非伸縮部５０を形成する方法は特に限定されない。以下に，中央非伸縮部５０を形成する方法の例を説明する。まず，単純に，前側立体ギャザー伸縮部材３１と後側立体ギャザー伸縮部材４１とを，長手方向に間隔を空けて，別々に取り付ける方法が考えられる。これにより，各立体ギャザー伸縮部材３１，４１の間に，中央非伸縮部５０が形成される。 In the present invention, the method for forming the central non-expandable portion 50 is not particularly limited. Below, the example of the method of forming the center non-expandable part 50 is demonstrated. First, a method of simply attaching the front three-dimensional gather expansion / contraction member 31 and the rear three-dimensional gather expansion / contraction member 41 separately at an interval in the longitudinal direction is conceivable. Thereby, the center non-expandable part 50 is formed between each solid gather elastic members 31 and 41.

また，他の方法として，前側立体ギャザー伸縮部材３１と後側立体ギャザー伸縮部材４１は，もともと繋がっていた同じ伸縮部材から形成することもできる。すなわち，伸縮部材をサイドシート２０の自由部分２３ｃに対して，長手方向に延びた伸縮部材を，接着部と非接着部とが交互に連続するように間欠的に固定する。例えば，伸縮部材に対して接着剤を間欠的に塗布してもよいし，サイドシート２０に対して接着剤を間欠的に塗布してもよい。このようにして，サイドシート２０の自由部分２３ｃに伸縮部材を間欠的に接着した後，非接着部において，伸縮部材のみを切断する。すると，この伸縮部材が部分的に収縮して，非接着部には存在しなくなり，接着部にのみ存在するようになる。この接着部に残った伸縮部材が，前側立体ギャザー伸縮部材３１と後側立体ギャザー伸縮部材４１に相当する。また，接着部の間に位置する非接着部が，中央非伸縮部５０に相当する。このようにして，前側伸縮部３０と後側伸縮部４０の間に，伸縮性が付与されていない中央非伸縮部５０を形成することができる。 As another method, the front three-dimensional gather expansion / contraction member 31 and the rear three-dimensional gather expansion / contraction member 41 can be formed from the same expansion / contraction member that was originally connected. That is, the elastic member extending in the longitudinal direction is intermittently fixed to the free portion 23c of the side sheet 20 so that the adhesive portions and the non-adhesive portions are alternately continued. For example, the adhesive may be intermittently applied to the elastic member, or the adhesive may be intermittently applied to the side sheet 20. In this way, after the elastic member is intermittently bonded to the free portion 23c of the side sheet 20, only the elastic member is cut at the non-bonded portion. As a result, the elastic member partially contracts and does not exist in the non-bonded portion, but only in the bonded portion. The elastic members remaining in the bonded portion correspond to the front three-dimensional gather elastic member 31 and the rear three-dimensional gather elastic member 41. Further, the non-bonded portion located between the bonded portions corresponds to the central non-stretchable portion 50. In this way, the central non-stretchable portion 50 that is not given stretchability can be formed between the front stretchable portion 30 and the rear stretchable portion 40.

さらに別の方法も考えられる。まず，伸縮部材をサイドシート２０の自由部分２３ｃに対して，長手方向に延びた伸縮部材を連続的（全体的）に接着する。このようにして，サイドシート２０の自由部分２３ｃに伸縮部材を連続的に接着した後，ある区間において，伸縮部材のみを細かく切断する。すると，伸縮部材が細かく切断された区間において，伸縮部材による伸縮性が解除される。この伸縮性が解除された領域が，中央非伸縮部５０に相当する。また，中央非伸縮部５０の前後に残った伸縮部材が，前側立体ギャザー伸縮部材３１と後側立体ギャザー伸縮部材４１に相当する。このようにして，前側伸縮部３０と後側伸縮部４０の間に，伸縮部材による伸縮性が付与されていない中央非伸縮部５０を形成することもできる。 Still other methods are possible. First, the stretchable member extending in the longitudinal direction is continuously (overall) bonded to the free portion 23c of the side sheet 20. In this manner, after the elastic member is continuously bonded to the free portion 23c of the side sheet 20, only the elastic member is finely cut in a certain section. Then, the stretchability of the stretchable member is canceled in the section where the stretchable member is finely cut. The region where the stretchability is released corresponds to the central non-stretchable portion 50. The elastic members remaining before and after the central non-expandable portion 50 correspond to the front three-dimensional gather elastic member 31 and the rear three-dimensional gather elastic member 41. In this way, the central non-stretchable portion 50 to which the stretchability of the stretchable member is not imparted can be formed between the front stretchable portion 30 and the rear stretchable portion 40.

また，前側立体ギャザー伸縮部材３１と後側立体ギャザー伸縮部材４１をサイドシート２０に固定するときの伸長率は，例えば，２６０％〜４１０％，２８０％〜３７０％，又は３１０％〜３４０％程度であることが好ましい。ここにいう「伸長率」とは，収縮状態（自然状態）の弾性伸縮部材の長さを１００％として，伸長状態の弾性伸縮部材の長さの増加分を示した割合であり，例えば，長さ１０ｃｍのものを２０ｃｍに伸長すると，その伸長率は２００％とされる。 Moreover, the elongation rate when fixing the front three-dimensional gather elastic member 31 and the rear three-dimensional gather elastic member 41 to the side seat 20 is, for example, about 260% to 410%, 280% to 370%, or 310% to 340%. It is preferable that The “elongation rate” here is a ratio indicating an increase in the length of the elastic stretch member in the stretched state, where the length of the elastic stretch member in the contracted state (natural state) is 100%. When a 10 cm length is stretched to 20 cm, the stretch rate is 200%.

図３（ａ）は，図２におけるＡ−Ａ線の断面図であり，図３（ｂ）は，図２におけるＢ−Ｂ線の断面図である。すなわち，図３（ａ）は，前側伸縮部３０（又は後側伸縮部４０）に相当する部位における吸収性物品１００の断面図を示しており，図３（ｂ）は，中央非伸縮部５０に相当する部位における吸収性物品１００の断面図を示している。図１に示されるように，前側伸縮部３０には前側立体ギャザー伸縮部材３１が存在しているため，前側立体ギャザー伸縮部材３１によって引っ張られるようにして，サイドシート２０の自由部分２３ｃが起立している。このため，この前側伸縮部３０において，サイドシート２０は，内側に傾倒するように起立することが多い。このようにして，前側伸縮部３０及び後側伸縮部４０が存在することにより，サイドシート２０が立体ギャザーとして機能する。 3A is a cross-sectional view taken along the line AA in FIG. 2, and FIG. 3B is a cross-sectional view taken along the line BB in FIG. That is, FIG. 3A shows a cross-sectional view of the absorbent article 100 at a portion corresponding to the front side stretchable part 30 (or the rear side stretchable part 40), and FIG. Sectional drawing of the absorbent article 100 in the site | part corresponded to is shown. As shown in FIG. 1, since the front three-dimensional gather elastic member 31 exists in the front elastic member 30, the free portion 23 c of the side seat 20 stands up so as to be pulled by the front three-dimensional gather elastic member 31. ing. For this reason, in this front side expansion-contraction part 30, the side seat 20 often stands up so that it may incline inside. Thus, the side seat 20 functions as a three-dimensional gather by the presence of the front side stretchable part 30 and the rear side stretchable part 40.

他方で，中央非伸縮部５０には伸縮性が付与されていないため，サイドシート２０の自由部分２３ｃは起立しているものの，伸縮部材等によっては引っ張られていない。このため，図３（ｂ）に示されるように，中央非伸縮部５０においては，サイドシート２０の自由部分２３ｃが，幅方向外側に向かって展開することも可能となっている。このように，中央非伸縮部５０において，サイドシート２０は，伸縮部材の状態に依存せず，自由に幅方向の外側に向かって膨らんだり広がったりすることができる。これにより，中央非伸縮部５０において，サイドシート２０は，例えば，便などの固形物を収容可能な空間（ポケット）を形成することができる。従って，便などが排泄されやすい股下部３の中央付近に，中央非伸縮部５０を形成して，サイドシート２０によってポケットを形成することで，排泄された便を長時間安定的に留めておくことができる。特に，図３に示されるように，サイドシート２０の根元付近（接合線２１付近）が，幅方向外側に膨らみやすいため，この根元付近に便などの固形物を安定的に収容することが可能となる。 On the other hand, since the central non-stretchable portion 50 is not stretchable, the free portion 23c of the side seat 20 is upright but is not pulled by a stretchable member or the like. For this reason, as shown in FIG. 3B, in the central non-stretchable portion 50, the free portion 23 c of the side seat 20 can be developed toward the outside in the width direction. Thus, in the central non-expandable portion 50, the side seat 20 can freely swell or expand outward in the width direction without depending on the state of the stretchable member. Thereby, in the center non-expandable part 50, the side seat | sheet 20 can form the space (pocket) which can accommodate solid objects, such as a stool, for example. Accordingly, the non-stretchable portion 50 is formed near the center of the crotch 3 where stool or the like is easily excreted, and the pockets are formed by the side seats 20 so that the excreted stool is stably retained for a long time. be able to. In particular, as shown in FIG. 3, the vicinity of the base of the side sheet 20 (the vicinity of the joining line 21) is likely to bulge outward in the width direction, so that solids such as feces can be stably accommodated near the base. It becomes.

また，図２に示されるように，サイドシート２０の自由部分２３ｃには，前側伸縮部３０よりも前端部側と後側伸縮部４０よりも後端部側に，さらに，伸縮性が付与されていない領域が存在する。すなわち，まず，前端側の接合部分２３ａと前側伸縮部３０との間に，伸縮性が付与されていない前側非伸縮部６０が存在する。また，後端側の接合部分２３ｂと後側伸縮部４０との間に，伸縮性が付与されていない後側非伸縮部７０が存在する。前側非伸縮部６０と後側非伸縮部７０は，それぞれ，上述した中央非伸縮部５０を形成する方法と同様の方法にて形成すればよい。 Further, as shown in FIG. 2, the free portion 23 c of the side seat 20 is further provided with stretchability on the front end portion side with respect to the front stretchable portion 30 and on the rear end portion side with respect to the rear stretchable portion 40. There are areas that are not. That is, first, the front non-stretchable portion 60 to which no stretchability is imparted exists between the joint portion 23 a on the front end side and the front stretchable portion 30. Further, a rear non-stretchable portion 70 that is not provided with stretchability exists between the joint portion 23b on the rear end side and the rear stretchable portion 40. The front non-stretchable portion 60 and the rear non-stretchable portion 70 may be formed by a method similar to the method of forming the central non-stretchable portion 50 described above.

ここで，前側伸縮部３０の長さをＥＬ_１とし，後側伸縮部４０の長さをＥＬ_２とする。また，中央非伸縮部５０の長さをＮＬ_１とし，前側非伸縮部６０の長さをＮＬ_２とし，後側非伸縮部７０の長さをＮＬ_３とする。この場合に，中央非伸縮部５０の長さＮＬ_１と前側非伸縮部６０の長さＮＬ_２と後側非伸縮部７０の長さＮＬ_３の合計値ＮＬは，前側伸縮部３０の長さＥＬ_１と後側伸縮部４０の長さＥＬ_２の合計値ＥＬよりも，長いことが好ましい（ＮＬ＞ＥＬ）。例えば，長さＮＬは，長さＥＬに対して，１１０％〜４００％，１２０％〜３８０％，又は１５０％〜３５０％であることが好ましい。さらに具体的には，中央非伸縮部５０の長さが符号ＮＬ_１は，前側伸縮部３０の長さＥＬ_１と後側伸縮部４０の長さＥＬ_２の合計値ＥＬよりも，長いことが好ましい（ＮＬ_１＞ＥＬ）。例えば，長さＮＬ_１は，長さＥＬに対して，１０１％〜２００％，１０２％〜１８０％，又は１０５％〜１５０％であることが好ましい。また，中央非伸縮部５０の長さＮＬ_１は，少なくとも，５ｍｍ以上であることが好ましく，５〜１００ｍｍ，又は１０〜６０ｍｍとすることができる。 Here, the length of the front extensible portion 30 and EL _1, the length of the rear expansion portion 40 and EL _2. Further, the length of the central non-contracted parts 50 and NL _1, the length of the front non-contracted parts 60 and NL _2, the length of the rear non-contracted parts 70 and NL _3. In this case, the total value NL length NL ₃ of the center non-stretchable length of the portion 50 NL ₁ and the length of the front non-contracted parts 60 NL ₂ and a rear non-contracted parts 70, the front telescopic section 30 length It is preferably longer than the total value EL of EL ₁ and the length EL ₂ of the rear side stretchable part 40 (NL> EL). For example, the length NL is preferably 110% to 400%, 120% to 380%, or 150% to 350% with respect to the length EL. More specifically, the sign NL ₁ length of the central non-contracted parts 50, rather than the total value EL length EL ₂ length EL ₁ and a rear stretch unit 40 of the front extensible portion 30, is longer Preferred (NL ₁ > EL). For example, the length NL ₁ is preferably 101% to 200%, 102% to 180%, or 105% to 150% with respect to the length EL. The length NL ₁ of the central non-contracted parts 50, at least, preferably at 5mm or more, can be 5 to 100 mm, or 10 to 60 mm.

このように，本発明では，弾性伸縮部材によって伸縮性が付与された前側伸縮部３０と後側伸縮部４０の長さを比較的短くし，弾性伸縮部材が存在せず伸縮性が付与されていない中央非伸縮部５０，前側非伸縮部６０，及び後側非伸縮部７０の長さを長くする。接着剤によって固定される弾性伸縮部材は，不織布などのシート部材と比較して肌触りが硬いものである。従って，本発明のように，弾性伸縮部材が存在する領域を，立体ギャザーを形成可能な程度に限定し，その他の領域から弾性伸縮部材を省略することで，立体ギャザーの肌触りを良化している。つまり，中央非伸縮部５０，前側非伸縮部６０，及び後側非伸縮部７０は，弾性伸縮部材が存在しないため，肌触りが良好である。そこで，これらの非伸縮部５０，６０，７０を比較的広く確保することで，立体ギャザー全体の肌触りが良くなり，その結果，吸収性物品１００の着用感が向上する。 As described above, in the present invention, the lengths of the front side stretchable part 30 and the rear side stretchable part 40 to which the stretchability is imparted by the elastic stretchable member are relatively shortened, and there is no elastic stretchable member and the stretchability is imparted. The lengths of the center non-stretchable portion 50, the front non-stretchable portion 60, and the rear non-stretchable portion 70 are increased. The elastic elastic member fixed by the adhesive has a hard touch compared to a sheet member such as a nonwoven fabric. Therefore, as in the present invention, the area where the elastic expansion and contraction member exists is limited to the extent that a three-dimensional gather can be formed, and the elastic expansion and contraction member is omitted from other areas, thereby improving the touch of the three-dimensional gather. . That is, the center non-stretchable part 50, the front non-stretchable part 60, and the rear non-stretchable part 70 have good touch because there is no elastic stretchable member. Therefore, by securing these non-stretchable portions 50, 60, 70 relatively wide, the touch of the entire three-dimensional gather is improved, and as a result, the feeling of wearing the absorbent article 100 is improved.

図１〜図３に示されるように，吸収性物品１００は，さらに，レッグギャザー伸縮部材８１を備えることが好ましい。レッグギャザー伸縮部材８１は，吸収性本体１０の幅方向左右両側に，それぞれ一又は複数本設けられる。図２に示されるように，レッグギャザー伸縮部材８１は，長手方向に沿った伸長状態で，直線状，湾曲線状，又は屈曲線状に配置される。レッグギャザー伸縮部材８１は，股下部３を中心として，前身頃１及び後身頃２にかけて配置されていることが好ましい。このように，レッグギャザー伸縮部材８１を設けることで，吸収性物品１００が装着された際，着用者の脚周りに相当する部分にレッグギャザーが形成される。レッグギャザーを形成することで，着用者の脚周りと吸収性物品１００とのフィット性が向上するため，尿などの液体が脚周りの開口部から漏れ出すことを防止できる。 As shown in FIGS. 1 to 3, it is preferable that the absorbent article 100 further includes a leg gather elastic member 81. One or a plurality of leg gather elastic members 81 are provided on each of the left and right sides of the absorbent main body 10 in the width direction. As shown in FIG. 2, the leg gather elastic members 81 are arranged in a straight line shape, a curved line shape, or a bent line shape in an extended state along the longitudinal direction. The leg gather expansion / contraction member 81 is preferably arranged over the front body 1 and the back body 2 with the crotch 3 as the center. Thus, by providing the leg gather elastic member 81, when the absorbent article 100 is mounted, a leg gather is formed in a portion corresponding to the circumference of the wearer's leg. By forming leg gathers, the fit between the wearer's leg and the absorbent article 100 is improved, so that liquid such as urine can be prevented from leaking from the opening around the leg.

図２及び図３に示されるように，左右のレッグギャザー伸縮部材８１は，それぞれ，サイドシート２０の接合領域２２において，このサイドシート２０と吸収性本体１０の間に挟んで固定されていることが好ましい。例えば，図３に示されるように，本実施形態では，トップシート１１よりも外側に延出したバックシート１２の一部分とサイドシート２０との間に，レッグギャザー伸縮部材８１が固定されている。このように，接合領域２２において，サイドシート２０とバックシート１２の間に，一又は複数のレッグギャザー伸縮部材８１を固定することとしてもよい。また，図示は省略するが，レッグギャザー伸縮部材８１は，接合領域２２において，サイドシート２０とトップシート１１の間に固定されていてもよい。 As shown in FIGS. 2 and 3, the left and right leg gather elastic members 81 are fixed between the side sheet 20 and the absorbent body 10 in the joining region 22 of the side sheet 20. Is preferred. For example, as shown in FIG. 3, in this embodiment, a leg gather expansion / contraction member 81 is fixed between a portion of the back sheet 12 that extends outward from the top sheet 11 and the side sheet 20. Thus, in the joining area | region 22, it is good also as fixing the 1 or several leg gather expansion-contraction member 81 between the side seat | sheet 20 and the back seat | sheet 12. FIG. Although not shown, the leg gather elastic member 81 may be fixed between the side sheet 20 and the top sheet 11 in the joining region 22.

ここで，図２に示されるように，レッグギャザー伸縮部材８１は，少なくとも，起立領域２３の前側非伸縮部６０に相当する位置から後側非伸縮部７０に相当する位置まで達するような長さで配置されている。つまり，レッグギャザー伸縮部材８１は，接合領域２２に固定されるものである。ただし，幅方向に見たときに，レッグギャザー伸縮部材８１の前端は，起立領域２３の前側非伸縮部６０に達しており，レッグギャザー伸縮部材８１の後端は，起立領域２３の後側非伸縮部７０に達している。また，レッグギャザー伸縮部材８１は，前端から後端に至るまで連続的に繋がっており，不連続となっている部分（切断された部分）は存在していない。このため，幅方向に見たときに，中央非伸縮部５０の側方にも，レッグギャザー伸縮部材８１が存在している。 Here, as shown in FIG. 2, the leg gather expansion / contraction member 81 has a length that reaches at least a position corresponding to the front non-expandable part 60 of the standing region 23 to a position corresponding to the rear non-expandable part 70. Is arranged in. That is, the leg gather elastic member 81 is fixed to the joining region 22. However, when viewed in the width direction, the front end of the leg gather stretchable member 81 reaches the front non-stretchable portion 60 of the standing region 23, and the rear end of the leg gather stretchable member 81 is non-backward of the standing region 23. The elastic part 70 is reached. Further, the leg gather expansion / contraction member 81 is continuously connected from the front end to the rear end, and there is no discontinuous portion (cut portion). For this reason, when viewed in the width direction, the leg gather expansion / contraction member 81 is also present on the side of the central non-expandable portion 50.

本発明では，上述したように，起立領域２３の自由部分２３ｃに，中央非伸縮部５０や，前側非伸縮部６０，及び後側非伸縮部７０を設けることで，立体ギャザーの肌触りを良化し，さらに，立体ギャザー内に固形物を収容しやすくしている。ただし，これらの非伸縮部５０，６０，７０が存在することで，吸収性物品１００全体のフィット性が多少低下することが懸念される。そこで，本発明では，上述したように，レッグギャザー伸縮部材８１を，前側非伸縮部６０に相当する位置から，中央非伸縮部５０に相当する位置を通り，後側非伸縮部７０に相当する位置まで配置することで，吸収性物品１００のフィット性の低下を抑制している。これにより，非伸縮部５０，６０，７０を設けた場合であっても，一般的な吸収性物品と変わらないフィット性を提供することができる。 In the present invention, as described above, the center non-stretchable portion 50, the front non-stretchable portion 60, and the rear non-stretchable portion 70 are provided in the free portion 23c of the standing region 23, thereby improving the touch of the three-dimensional gather. Furthermore, it is easy to accommodate solid matter in the three-dimensional gather. However, the presence of these non-stretchable parts 50, 60, and 70 is a concern that the fit of the absorbent article 100 as a whole is somewhat lowered. Therefore, in the present invention, as described above, the leg gather expansion / contraction member 81 passes from the position corresponding to the front non-expandable part 60 to the position corresponding to the central non-expandable part 50 and corresponds to the rear non-expandable part 70. By arrange | positioning to a position, the fall of the fitting property of the absorbent article 100 is suppressed. Thereby, even if it is a case where the non-expandable parts 50, 60, and 70 are provided, the fitting property which is not different from a general absorbent article can be provided.

上記した前側立体ギャザー伸縮部材３１や，後側立体ギャザー伸縮部材４１，レッグギャザー伸縮部材８１には，それぞれ，公知の弾性伸縮部材を用いることができる。例えば，各弾性伸縮部材には，糸状弾性ゴム又は平状弾性ゴムを適用することができる。このようなゴム部材としては，スチレン系ゴム，オレフィン系ゴム，ウレタン系ゴム，エステル系ゴム，ポリウレタン，ポリエチレン，ポリスチレン，スチレンブタジエン，シリコーン，又はポリエステル等の素材を用いることができる。また，各伸縮部材には，例えば熱可塑性エラストマー，プラスチックシート，又はゴムシート等の伸縮性を有する公知の部材を用いることもできる。 As the front three-dimensional gather elastic member 31, the rear three-dimensional gather elastic member 41, and the leg gather elastic member 81, known elastic elastic members can be used. For example, thread elastic rubber or flat elastic rubber can be applied to each elastic elastic member. As such a rubber member, materials such as styrene rubber, olefin rubber, urethane rubber, ester rubber, polyurethane, polyethylene, polystyrene, styrene butadiene, silicone, or polyester can be used. In addition, for each elastic member, a known member having elasticity such as a thermoplastic elastomer, a plastic sheet, or a rubber sheet can be used.

［２．第２の実施形態］
続いて，図４を参照して，本発明に係る吸収性物品１００の第２の実施形態について説明する。図４は，第２の実施形態に係る吸収性物品１００の平面図を示している。図４に示されるように，第２の実施形態に係る吸収性物品１００は，左右両側のそれぞれに，一又は複数の中央補強用伸縮部材８２をさらに備えている。その他の構成要素について，第２の実施形態に係る吸収性物品１００は，図１〜図３に示した第１の実施形態と同様である。 [2. Second Embodiment]
Then, with reference to FIG. 4, 2nd Embodiment of the absorbent article 100 which concerns on this invention is described. FIG. 4 shows a plan view of the absorbent article 100 according to the second embodiment. As shown in FIG. 4, the absorbent article 100 according to the second embodiment further includes one or a plurality of central reinforcing elastic members 82 on both the left and right sides. About other components, the absorbent article 100 which concerns on 2nd Embodiment is the same as that of 1st Embodiment shown in FIGS. 1-3.

図４に示されるように，中央補強用伸縮部材８２は，サイドシート２０の接合領域２２に配設されている。具体的には，中央補強用伸縮部材８２は，接合領域２２において，サイドシート２０と吸収性本体１０の間に固定されることが好ましい。また，中央補強用伸縮部材８２は，レッグギャザー伸縮部材８１と接合線２１との間に位置する。中央補強用伸縮部材８２は，レッグギャザー伸縮部材８１と接合線２１との間において，長手方向に沿った伸長状態で固定されている。 As shown in FIG. 4, the central reinforcing elastic member 82 is disposed in the joining region 22 of the side sheet 20. Specifically, the central reinforcing elastic member 82 is preferably fixed between the side sheet 20 and the absorbent main body 10 in the joining region 22. The central reinforcing expansion / contraction member 82 is located between the leg gather expansion / contraction member 81 and the joining line 21. The central reinforcing expansion / contraction member 82 is fixed in an extended state along the longitudinal direction between the leg gather expansion / contraction member 81 and the joining line 21.

さらに，図４に示されるように，中央補強用伸縮部材８２は，中央非伸縮部５０に相当する長さ範囲内にのみ配置されている。すなわち，幅方向に見て，中央補強用伸縮部材８２の前端と後端は，いずれも，中央非伸縮部５０の範囲内に収まっており，この中央非伸縮部５０から突出していない。このため，幅方向に見て，中央補強用伸縮部材８２の前端と後端は，前側伸縮部３０と後側伸縮部４０とに重ならないようになっている。 Furthermore, as shown in FIG. 4, the central reinforcing expansion / contraction member 82 is disposed only within a length range corresponding to the central non-expandable portion 50. That is, when viewed in the width direction, the front end and the rear end of the central reinforcing expansion / contraction member 82 are both within the range of the central non-expandable portion 50 and do not protrude from the central non-expandable portion 50. For this reason, the front end and the rear end of the central reinforcing expansion / contraction member 82 do not overlap the front expansion / contraction part 30 and the rear expansion / contraction part 40 when viewed in the width direction.

第２の実施形態では，このような中央補強用伸縮部材８２を設けることで，中央非伸縮部５０における吸収性物品１００のフィット性を高めることができる。つまり，本発明では，起立領域２３の自由部分２３ｃに，中央非伸縮部５０を設けることで，立体ギャザーの肌触りを良化し，さらに，立体ギャザー内に固形物を収容しやすくしている。ただし，これらの中央非伸縮部５０が存在することで，吸収性物品１００のフィット性が多少低下することが懸念される。そこで，上述したレッグギャザー伸縮部材８１に加えて，さらに，中央非伸縮部５０に相当する長さ範囲内に中央補強用伸縮部材８２を設けることで，吸収性物品１００のフィット性を補強することができる。なお，中央補強用伸縮部材８２を，前側伸縮部３０や後側伸縮部４０に相当する範囲に設けると，圧迫力が強くなり過ぎてしまい，却って吸収性物品１００の着用感が低下するおそれがある。このため，中央補強用伸縮部材８２は，中央非伸縮部５０に相当する長さ範囲内にのみ存在することが好ましい。 In 2nd Embodiment, the fitting property of the absorbent article 100 in the center non-expandable part 50 can be improved by providing such a center reinforcing elastic member 82. In other words, in the present invention, the central non-stretchable portion 50 is provided in the free portion 23c of the upright region 23, thereby improving the feel of the three-dimensional gather and making it easier to accommodate the solid matter in the three-dimensional gather. However, there is a concern that the fit of the absorbent article 100 may be somewhat deteriorated due to the presence of these central non-stretchable portions 50. Therefore, in addition to the above-described leg gather elastic member 81, the fitting property of the absorbent article 100 is reinforced by providing a central reinforcing elastic member 82 within a length range corresponding to the central non-elastic part 50. Can do. If the central reinforcing elastic member 82 is provided in a range corresponding to the front elastic part 30 and the rear elastic part 40, the pressing force becomes too strong, and the wearing feeling of the absorbent article 100 may be reduced. is there. For this reason, it is preferable that the central reinforcing expansion / contraction member 82 exists only within a length range corresponding to the central non-expandable portion 50.

［３．第３の実施形態］
続いて，図５を参照して，本発明に係る吸収性物品１００の第３の実施形態について説明する。図５は，第３の実施形態に係る吸収性物品１００の平面図を示している。図５に示されるように，第２の実施形態に係る吸収性物品１００は，左右両側のそれぞれに，一又は複数の前側補強用伸縮部材８３と，一又は複数の後側補強用伸縮部材８４とを有している。その他の構成要素について，第３の実施形態に係る吸収性物品１００は，図１〜図３に示した第１の実施形態と同様である。 [3. Third Embodiment]
Then, with reference to FIG. 5, 3rd Embodiment of the absorbent article 100 which concerns on this invention is described. FIG. 5 shows a plan view of the absorbent article 100 according to the third embodiment. As shown in FIG. 5, the absorbent article 100 according to the second embodiment includes one or more front reinforcing elastic members 83 and one or more rear reinforcing elastic members 84 on each of the left and right sides. And have. Regarding other components, the absorbent article 100 according to the third embodiment is the same as the first embodiment shown in FIGS.

図５に示されるように，前側補強用伸縮部材８３と後側補強用伸縮部材８４は，サイドシート２０の接合領域２２に配設されている。具体的には，前側補強用伸縮部材８３と後側補強用伸縮部材８４は，接合領域２２において，サイドシート２０と吸収性本体１０の間に固定されることが好ましい。また，前側補強用伸縮部材８３と後側補強用伸縮部材８４は，レッグギャザー伸縮部材８１と接合線２１との間に位置し，長手方向に沿った伸長状態で固定されている。 As shown in FIG. 5, the front reinforcing elastic member 83 and the rear reinforcing elastic member 84 are disposed in the joining region 22 of the side seat 20. Specifically, the front reinforcing elastic member 83 and the rear reinforcing elastic member 84 are preferably fixed between the side sheet 20 and the absorbent main body 10 in the joining region 22. Further, the front reinforcing elastic member 83 and the rear reinforcing elastic member 84 are positioned between the leg gather elastic member 81 and the joining line 21 and are fixed in an extended state along the longitudinal direction.

さらに，図５に示されるように，前側補強用伸縮部材８３は，前側非伸縮部６０に相当する長さ範囲内にのみ配置されている。すなわち，幅方向に見て，前側補強用伸縮部材８３の前端と後端は，いずれも，前側非伸縮部６０の範囲内に収まっており，この前側非伸縮部６０から突出していない。このため，幅方向に見て，前側補強用伸縮部材８３の前端と後端は，前端側の接合部分２３ａや前側伸縮部３０に重ならないようになっている。同様に，後側補強用伸縮部材８４は，後側非伸縮部７０に相当する長さ範囲内にのみ配置されている。すなわち，幅方向に見て，後側補強用伸縮部材８４の前端と後端は，いずれも，後側非伸縮部７０の範囲内に収まっており，この後側非伸縮部７０から突出していない。このため，幅方向に見て，後側補強用伸縮部材８４の前端と後端は，後端側の接合部分２３ｂや後側伸縮部４０に重ならないようになっている。 Furthermore, as shown in FIG. 5, the front reinforcing expansion / contraction member 83 is disposed only within a length range corresponding to the front non-expandable portion 60. That is, when viewed in the width direction, the front end and the rear end of the front reinforcing expansion / contraction member 83 are both within the range of the front non-expandable portion 60 and do not protrude from the front non-expandable portion 60. Therefore, when viewed in the width direction, the front end and the rear end of the front reinforcing expansion / contraction member 83 do not overlap the front end side joining portion 23a or the front expansion / contraction part 30. Similarly, the rear reinforcing elastic member 84 is disposed only within a length range corresponding to the rear non-expandable portion 70. That is, when viewed in the width direction, the front end and the rear end of the rear reinforcing elastic member 84 are both within the range of the rear non-expandable portion 70 and do not protrude from the rear non-expandable portion 70. . For this reason, when viewed in the width direction, the front end and the rear end of the rear reinforcing expansion / contraction member 84 do not overlap the rear end side joining portion 23b and the rear side expansion / contraction part 40.

第３の実施形態では，レッグギャザー伸縮部材８１に加えて，このような前側補強用伸縮部材８３と後側補強用伸縮部材８４を設けることで，前側非伸縮部６０及び後側非伸縮部７０における吸収性物品１００のフィット性を補強することができる。 In the third embodiment, in addition to the leg gather elastic member 81, the front reinforcing elastic member 83 and the rear reinforcing elastic member 84 are provided, so that the front non-expandable part 60 and the rear non-expandable part 70 are provided. The fit of the absorbent article 100 can be reinforced.

なお，第２の実施形態では，中央補強用伸縮部材８２が設けられた形態を説明し，第３の実施形態では，前側補強用伸縮部材８３と後側補強用伸縮部材８４が設けられた形態を説明した。ただし，図示は省略するが，本発明の吸収性物品１００は，中央補強用伸縮部材８２，前側補強用伸縮部材８３，及び後側補強用伸縮部材８４を同時に備えることも可能である。 In the second embodiment, an embodiment in which a central reinforcing elastic member 82 is provided will be described. In the third embodiment, a front reinforcing elastic member 83 and a rear reinforcing elastic member 84 are provided. Explained. However, although not shown in the drawings, the absorbent article 100 of the present invention can also include the central reinforcing elastic member 82, the front reinforcing elastic member 83, and the rear reinforcing elastic member 84 at the same time.

［４．第４の実施形態］
続いて，図６を参照して，本発明に係る吸収性物品１００の第４の実施形態について説明する。図６は，第４の実施形態に係る吸収性物品１００の平面図を示している。図６に示されるように，第４の実施形態に係る吸収性物品１００では，前側立体ギャザー伸縮部材３１が，前端側の接合部分２３ａに達しており，後側立体ギャザー伸縮部材４１が，後端側の接合部分２３ｂに達している。このため，吸収性物品１００は，中央非伸縮部５０が形成されているものの，前側非伸縮部６０及び後側非伸縮部７０が形成されていない。このように，本発明の吸収性物品１００は，少なくとも中央非伸縮部５０が形成されていればよく，前側非伸縮部６０と後側非伸縮部７０を省略することも可能である。 [4. Fourth Embodiment]
Next, a fourth embodiment of the absorbent article 100 according to the present invention will be described with reference to FIG. FIG. 6 shows a plan view of the absorbent article 100 according to the fourth embodiment. As shown in FIG. 6, in the absorbent article 100 according to the fourth embodiment, the front three-dimensional gather elastic member 31 reaches the front end side joining portion 23a, and the rear three-dimensional gather elastic member 41 The end portion 23b is reached. For this reason, the absorbent article 100 has the central non-stretchable part 50 formed therein, but the front non-stretchable part 60 and the rear non-stretchable part 70 are not formed. As described above, the absorbent article 100 of the present invention only needs to have at least the center non-stretchable portion 50 formed, and the front non-stretchable portion 60 and the rear non-stretchable portion 70 can be omitted.

以上，本願明細書では，本発明の内容を表現するために，図面を参照しながら本発明の実施形態の説明を行った。ただし，本発明は，上記実施形態に限定されるものではなく，本願明細書に記載された事項に基づいて当業者が自明な変更形態や改良形態を包含するものである。 As mentioned above, in this specification, in order to express the content of this invention, embodiment of this invention was described, referring drawings. However, the present invention is not limited to the above-described embodiments, but includes modifications and improvements obvious to those skilled in the art based on the matters described in the present specification.

本発明は，使い捨ておむつ，吸収パッド，又は生理用ナプキンのような吸収性物品に関するものである。従って，本発明は，吸収性物品の製造業において好適に利用しうる。 The present invention relates to an absorbent article such as a disposable diaper, an absorbent pad, or a sanitary napkin. Therefore, this invention can be utilized suitably in the manufacturing industry of an absorbent article.

１…前身頃２…後身頃
３…股下部１０…吸収性本体
１１…トップシート１２…バックシート
１３…吸収体２０…サイドシート
２１…接合線２２…接合領域
２３…起立領域２３ａ…前端側の接合部分
２３ｂ…後端側の接合部分２３ｃ…自由部分
２４…折返部３０…前側伸縮部
３１…前側立体ギャザー伸縮部材４０…後側伸縮部
４１…後側立体ギャザー伸縮部材５０…中央非伸縮部
６０…前側非伸縮部７０…後側非伸縮部
８１…レッグギャザー伸縮部材８２…中央補強用伸縮部材
８３…前側補強用伸縮部材８４…後側補強用伸縮部材
１００…吸収性物品 DESCRIPTION OF SYMBOLS 1 ... Front body 2 ... Back body 3 ... Crotch part 10 ... Absorbent main body 11 ... Top sheet 12 ... Back sheet 13 ... Absorbent body 20 ... Side sheet 21 ... Joining line 22 ... Joining area 23 ... Standing area 23a ... Front end side Joined portion 23b ... Rear end side joined portion 23c ... Free portion 24 ... Folded portion 30 ... Front side stretchable portion 31 ... Front side three-dimensional gather stretchable member 40 ... Rear side stretchable portion 41 ... Rear side three-dimensional gather stretchable member 50 ... Center non-stretchable portion 60 ... front non-stretchable part 70 ... rear non-stretchable part 81 ... leg gather elastic member 82 ... central reinforcing elastic member 83 ... front reinforcing elastic member 84 ... rear reinforcing elastic member 100 ... absorbent article

Claims

A front body (1) in contact with the wearer's abdomen, a back body (2) in contact with the back of the wearer, and a crotch part (3) positioned between the front body (1) and the back body (2); An absorptive body (10) sectioned longitudinally;
A pair of side sheets (20) disposed on the left and right sides in the width direction of the absorbent main body (10) on the skin-facing surface side of the absorbent main body (10). )
A joining line (21) extending along the longitudinal direction;
A joining region (22) joined to the skin-facing surface of the absorbent main body (10) outside the joining line (21) in the width direction;
An upright region (23) on the inner side in the width direction than the joint line (21),
The standing area (23) is
Bonded portions (23a, 23b) bonded to the skin-facing surfaces of the absorbent main body (10) at both front and rear ends in the longitudinal direction;
An absorbent article including a free portion (23c) located between the longitudinal directions of the joint portions (23a, 23b) and not joined to the skin facing surface of the absorbent main body (10),
The free part (23c)
A front stretchable part (30) located closer to the front body (1), which is stretched by fixing the front three-dimensional gather stretchable member (31) in an elongated state along the longitudinal direction;
A rear stretchable part (40) located closer to the back body (2), provided with stretchability by fixing the rear three-dimensional gather stretchable member (41) in an elongated state along the longitudinal direction; ,
An absorbent article having a central non-stretchable part (50) which is positioned between the front side stretchable part (30) and the rear side stretchable part (40) and is not provided with stretchability.

The free part (23c)
A front non-stretchable part (60) which is located between the joint part (23a) on the front end side in the longitudinal direction and the front side stretchable part (30) and is not provided with stretchability;
A rear non-stretchable portion (70) which is located between the joining portion (23b) on the rear end side in the longitudinal direction and the rear stretchable portion (40) and is not provided with stretchability. Item 10. An absorbent article according to Item 1.

The total length (NL) of the central non-stretchable portion (50), the front non-stretchable portion (60), and the rear non-stretchable portion (70) is the front stretchable portion (30) and the rear side. The absorbent article according to claim 2, wherein the absorbent article is longer than a total length (EL) of the stretchable parts (40).

One or more leg gather elastic members (81) fixed in an extended state along the longitudinal direction to the joining region (22) of the side seat (20),
The absorption according to claim 2, wherein the leg gather elastic member (81) is disposed at least from a position corresponding to the front non-expandable part (60) to a position corresponding to the rear non-expandable part (70). Sex goods.

One or more central reinforcing elastic members (82) fixed in an extended state along the longitudinal direction between the leg gather elastic member (81) and the joint line (21);
The absorbent article according to claim 4, wherein the central reinforcing elastic member (82) is disposed within a length range corresponding to the central non-expandable part (50).

One or a plurality of front reinforcing expansion / contraction members (83) fixed in an extended state along the longitudinal direction between the leg gather expansion / contraction member (81) and the joint line (21); A rear reinforcing elastic member (84),
The front reinforcing expansion / contraction member (83) is disposed within a length range corresponding to the front non-expandable portion (60),
The absorbent article according to claim 4 or 5, wherein the rear reinforcing elastic member (84) is disposed within a length range corresponding to the rear non-expandable portion (70).

The front side stretchable part (30) is formed so as to reach the joint part (23a) on the front end side in the longitudinal direction,
The absorptive article according to claim 1. The back elastic part (40) is formed so that the junction part (23b) of the back end side of the longitudinal direction may be reached.