JP2006141992A

JP2006141992A - Absorptive article

Info

Publication number: JP2006141992A
Application number: JP2005286130A
Authority: JP
Inventors: Kenji Kobayashi; 賢司小林; Kenji Ando; 賢治安藤; Takuo Yanajima; 拓郎梁島; Masanori Endo; 正規遠藤
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2004-10-18
Filing date: 2005-09-30
Publication date: 2006-06-08
Anticipated expiration: 2025-09-30
Also published as: JP4330572B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide an absorptive article forming a joint part with a mechanical fastener between a side edge part of a rear side part and a side edge part of an abdominal part in a simple manufacturing process without using a large amount of female material. <P>SOLUTION: The absorptive article 10 comprises an absorptive body 17 having a liquid permeable surface sheet material 15, a liquid impermeable leak preventive sheet material, and a liquid holding absorbent 16; and an outer layer material 14 having the rear side part B, the abdominal part A and a crotch part C. The absorptive article 10 is formed in pants shape by joining both side edge parts 18b of the rear side part B to both side edge parts 18a of the abdominal part A through the mechanical fastener 12. A male material 19 is mounted to the inner surface of the side edge part 18b of the rear side part B, and the female material 20 is formed of a band-like sheet material and mounted by joining an outer side part 20a to the inner surface of the side edge part 18a of the abdominal part A and extending a free portion 20b to the inner side of the outer side part 20a. The male material 19 is locked to the female material 20 at the free portion 20b to join the both side edge parts 18b of the rear side part B to the both side edge parts 18a of the abdominal part A. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、吸収性物品及び吸収性物品の製造方法に関し、特に、液透過性の表面シート材と、液不透過性の防漏シート材と、これらのシート材の間に介在する液保持性の吸収体とを備え、背側部の側縁部と腹側部の側縁部とを各々接合することにより、パンツ形状に形成される吸収性物品及び該吸収性物品の製造方法に関する。 TECHNICAL FIELD The present invention relates to an absorbent article and a method for producing the absorbent article, and in particular, a liquid-permeable surface sheet material, a liquid-impermeable leak-proof sheet material, and a liquid retention property interposed between these sheet materials. It is related with the absorbent article formed in underpants shape by joining the side edge part of a back side part, and the side edge part of an abdominal side part, and the manufacturing method of this absorbent article.

使い捨ておむつ、パンツ型おむつ等の吸収性物品は、例えば液透過性の表面シート材と、液不透過性の防漏シート材と、液保持性の吸収体とを具備する実質的に縦長の吸収性本体と、背側部と腹側部と股下部とを含む外層材とからなるものであり、身体からの排出物等を吸収体に効果的に吸収できるようにすると共に、吸収した排出物を漏出させることなく強固に保持できるようにするための種々の工夫がなされている。 Absorbent articles such as disposable diapers and pants-type diapers, for example, are substantially longitudinal absorptions comprising a liquid-permeable surface sheet material, a liquid-impermeable leak-proof sheet material, and a liquid-retaining absorbent body. And the outer layer material including the back side, the abdominal side, and the crotch part. The absorbent body can effectively absorb the exhaust from the body, and the absorbed exhaust Various devices have been devised so that they can be firmly held without leakage.

また、使い捨ておむつやパンツ型おむつ等は、子供や老人等の着用者の下腹部に沿った形状となるように、例えば吸収性本体を内側にして外層材を股下部で二つ折りに折り返すと共に、背側部の側縁部と腹側部の側縁部とを接合することによってパンツ形状に形成される。さらに、外層材にウェスト周り弾性部材、胴回り弾性部材、レッグ周り弾性部材等を配置することにより、装着時の肌合いやフィット感を向上させている。 In addition, disposable diapers, pants-type diapers, etc. are folded in half at the crotch part with the outer layer material inside, for example, with the absorbent main body inside so as to be in the shape along the lower abdomen of the wearer such as a child or the elderly, A pants shape is formed by joining the side edge portion of the back side portion and the side edge portion of the abdominal side portion. Furthermore, by arranging an elastic member around the waist, an elastic member around the waist, an elastic member around the leg, and the like on the outer layer material, the texture and fit at the time of wearing are improved.

使い捨ておむつやパンツ型おむつをパンツ形状に形成するべく背側部の側縁部と腹側部の側縁部とを接合する手段としては、これらの側縁部を重ね合わせてヒートシールする方法が一般的に採用されているが、例えば廃棄時等において側縁部の接合部を剥離して折り畳んだり、一旦剥離した接合部を必要に応じて再接合したりすることを容易にする接合手段として、オス材及びメス材からなるメカニカルファスナーを用いたものが知られている。メカニカルファスナーによる接合手段の場合、図８に示すように、対向する一対の側縁部７０ａ，７０ｂの内側面にオス材７１とメス材７２を各々配置してこれらを重ね合わせて接合するだけでは、着用時における引っ張り力がＴ字方向の引っ張り力として負荷されることになるため接合強度が不足することになる。一方、図９に示すように一方の側縁部７３ａの外側面に他方の側縁部７３ｂの内側面を重ね合わせてオス材７４とメス材７５とを係止させることにより、着用時における引っ張り力がせん断方向の引っ張り力として負荷されるようにすることも考えられるが、吸収性物品を連続的に製造する工程において、一方の側縁部７３ａの外側面に他方の側縁部７３ｂの内側面を重ね合わせる作業に多くの手間がかかることになる。特に、例えば吸収性本体を間欠的に取り付けた外層材のウェブ（連続体）を、製造される吸収性物品の幅方向に連続して送り出す、いわゆる横流れによる製造方法では、弾性部材は胴周囲方向に伸縮可能な状態となるように配置されており、製品を個々に分断した後は収縮した部分のハンドリングが必要となるため、一方の側縁部の外側面に他方の側縁部の内側面を重ね合わせた状態とする工程の難易度が高くなる。 As a means for joining the side edge of the back side and the side edge of the abdomen to form a disposable diaper or a pants-type diaper in a pant shape, a method of heat-sealing these side edges is generally used. As a joining means that makes it easy to peel and fold the joint part of the side edge part at the time of disposal, etc., or to rejoin the joint part once peeled off as necessary, for example, The thing using the mechanical fastener which consists of a male material and a female material is known. In the case of a joining means using a mechanical fastener, as shown in FIG. 8, simply placing a male material 71 and a female material 72 on the inner surfaces of a pair of side edge portions 70 a and 70 b facing each other and superimposing them to join them. Since the pulling force at the time of wearing is loaded as the pulling force in the T-direction, the bonding strength is insufficient. On the other hand, as shown in FIG. 9, the outer surface of one side edge portion 73a is overlapped with the inner surface of the other side edge portion 73b so that the male material 74 and the female material 75 are engaged with each other. Although it is conceivable that the force is applied as a tensile force in the shear direction, in the process of continuously manufacturing the absorbent article, the inner side of the other side edge 73b is formed on the outer surface of the one side edge 73a. It takes a lot of work to overlap the sides. In particular, in a manufacturing method using a so-called cross flow in which a web (continuous body) of an outer layer material to which an absorbent main body is intermittently attached is continuously sent out in the width direction of the manufactured absorbent article, the elastic member is in the circumferential direction of the trunk. Because it is necessary to handle the shrunken part after dividing the product individually, the inner side surface of the other side edge is on the outer side of one side edge. The degree of difficulty of the process of making the state of being overlaid increases.

これに対し、対向する一対の側縁部の内側面にオス材やメス材を各々配置してこれらを重ね合わせて接合した場合でも、着用時における引っ張り力がせん断方向の引っ張り力として負荷される接合部を有する吸収性物品及びその製造方法が開発されている（例えば、特許文献１参照）。特許文献１によれば、図１０に示すように、吸収性物品の製造時に、メカニカルファスナーのメス材７６を扁平なＣ形に折り畳み、折り線部分７６ｃを外側に配置して一方の折り畳み片部７６ａの外側面を一方の側縁部７７ａの内側面に接合すると共に、他方の折り畳み片部７６ｂの外側面を、他方の側縁部７７ｂの内側面に設けたオス材７８と係止させるようにしたものである。
特表２００３−５３３２７８号公報 On the other hand, even when a male material and a female material are respectively arranged on the inner side surfaces of a pair of side edges facing each other and bonded together, the tensile force at the time of wearing is loaded as the tensile force in the shearing direction. An absorbent article having a joint and a method for manufacturing the same have been developed (see, for example, Patent Document 1). According to Patent Document 1, as shown in FIG. 10, when manufacturing the absorbent article, the female material 76 of the mechanical fastener is folded into a flat C shape, and the folding line portion 76c is arranged on the outside so that one folded piece portion is formed. The outer surface of 76a is joined to the inner surface of one side edge 77a, and the outer surface of the other folded piece 76b is locked with the male member 78 provided on the inner surface of the other side edge 77b. It is a thing.
Special table 2003-533278 gazette

しかしながら、上記特許文献１に記載の吸収性物品によれば、背側部の側縁部７７ｂと腹側部の側縁部７７ａとの接合部において、メス材７６は、２重に折り畳むことが可能な２倍の長さで設置されることになるため、材料の無駄が生じることになると共に、吸収性物品の製造工程においてメス材７６を２重に折り畳む作業が必要になって製造工程が複雑化することになる。 However, according to the absorbent article described in Patent Document 1, the female member 76 can be folded in a double manner at the joint between the side edge 77b on the back side and the side edge 77a on the abdomen. Since the installation is twice as long as this, the material is wasted, and the manufacturing process of the absorbent article requires a double folding operation of the female member 76, which complicates the manufacturing process. It will become.

本発明は、背側部の側縁部と腹側部の側縁部とを、これらの内側面同士を対向させた状態でオス材とメス材を配置して接合した場合でも、着用時における引っ張り力がせん断方向の引っ張り力として負荷されるようにしたメカニカルファスナーによる接合部を、多くのメス材を用いることなく且つ簡易な製造工程で容易に形成することのできる吸収性物品及び該吸収性物品の製造方法を提供することを目的とする。 Even when the male side and the female side are arranged and joined to the side edge of the back side and the side edge of the abdominal side in a state where these inner side surfaces are opposed to each other, the present invention can be pulled. Absorbent article capable of easily forming a joint by a mechanical fastener in which a force is applied as a tensile force in the shear direction without using a large number of female materials and by a simple manufacturing process, and the absorbent article It aims at providing the manufacturing method of.

本発明は、液透過性の表面シート材と、液不透過性の防漏シート材と、これらのシート材の間に介在する液保持性の吸収体とを備え、吸収体の背側部と腹側部の側方に延出する外層材を有し、背側部の側縁部と腹側部の側縁部とを、オス材及びメス材からなるメカニカルファスナーを介して各々接合することにより、パンツ形状に形成される吸収性物品であって、前記オス材は、前記背側部又は腹側部の何れか一方の側縁部の内側面（身体側の面）に取り付けられており、前記メス材は、シート材からなり、外側辺部の裏面（外層材と対向する面）を、前記背側部又は腹側部の他方の側縁部の内側面（身体側の面）に接合することにより、接合された前記外側辺部よりも内方部分を自由部分として延設させた状態で取り付けられており、前記オス材は、前記自由部分において前記メス材と係止して、前記背側部の側縁部と腹側部の側縁部とを接合している吸収性物品を提供することにより、上記目的を達成したものである。 The present invention comprises a liquid-permeable surface sheet material, a liquid-impermeable leak-proof sheet material, and a liquid-retaining absorbent body interposed between these sheet materials, and the back side portion and the stomach of the absorbent body By having the outer layer material extending to the side of the side part, joining the side edge part of the back side part and the side edge part of the abdominal side part via mechanical fasteners made of male material and female material, An absorbent article formed in a pants shape, wherein the male material is attached to an inner side surface (a body side surface) of either one of the back side portion or the ventral side portion, The female material is made of a sheet material, and the back surface of the outer side portion (surface facing the outer layer material) is joined to the inner side surface (surface on the body side) of the other side edge of the back side portion or the abdominal side portion. By being attached in a state where the inner part is extended as a free part from the joined outer side part, By providing an absorbent article that is engaged with the female material at the free portion and joins the side edge portion of the back side portion and the side edge portion of the abdominal side portion, the above object is achieved. Achieved.

また、本発明は、上記吸収性物品を製造するための製造方法であって、前記吸収性物品を構成するウェブを連続的に横流れで送り出す工程と、送り出される前記ウェブを流れ方向と平行な二つ折り線に沿って折り畳んだ後に個々の吸収性物品に切り離す工程とを含み、前記ウェブを折り畳んで個々の吸収性物品に切り離す工程に先立って、前記ウェブの背側部、腹側部における切り離し予定線を挟んだ両側に、切り離して形成される各吸収性物品の両側縁部の内側面に配置して、前記オス材又はメス材の何れか一方及び他方を各々取り付ける工程を備え、前記ウェブを二つ折りに折り畳んだ際に、前記オス材を前記メス材の自由部分に係止させ、前記切り離し予定線で前記ウェブを個々に切り離して、前記背側部の両側縁部と前記腹側部の両側縁部がメカニカルファスナーを介して各々接合された吸収性物品を製造する吸収性物品の製造方法を提供することにより、上記目的を達成したものである。 Further, the present invention is a manufacturing method for manufacturing the absorbent article, wherein the web constituting the absorbent article is continuously fed out in a transverse flow, and the web fed out is parallel to the flow direction. Fold along the fold line and then cut into individual absorbent articles, and prior to the step of folding the web into individual absorbent articles, the web is scheduled to be cut off at the dorsal and ventral sides A step of attaching either one of the male material or the female material and the other to the inner surface of both side edges of each absorbent article formed separately on both sides of the wire, When folded in half, the male material is locked to the free part of the female material, the webs are individually separated by the planned separation line, and both side edges of the back side part and the ventral side part are separated. Both By edge to provide a method of manufacturing an absorbent article manufacturing each bonded absorbent article via the mechanical fastener is obtained by achieving the above object.

本発明の吸収性物品及び該吸収性物品の製造方法によれば、背側部の側縁部と腹側部の側縁部とを、これらの内側面同士を対向させた状態でオス材とメス材を配置して接合した場合でも、着用時における引っ張り力がせん断方向の引っ張り力として負荷されるようにしたメカニカルファスナーによる接合部を、多くのメス材を用いることなく且つ簡易な製造工程で容易に形成することができる。 According to the absorbent article and the method for producing the absorbent article of the present invention, the male side and the female side of the side edge part of the back side part and the side edge part of the abdominal side part face each other. Even when materials are placed and joined, joints made with mechanical fasteners that allow the tensile force during wearing to be loaded as a tensile force in the shearing direction can be easily done without using many female materials and with a simple manufacturing process Can be formed.

本発明の好ましい一実施形態に係る吸収性物品は、例えば図１及び図２に示すようなパンツ型おむつ１０として製造されるものであり、このパンツ型おむつ１０は、基材シート１１に弾性部材１２ａ，１２ｂ，１２ｃが伸長状態で配設された複合シート部材を切断して得られた外層材１４と、外層材１４の内側に取り付けられた、液透過性の表面シート材１５、液不透過性の防漏シート材（図示せず）、及びこれらのシートの間に介在する液保持性の吸収体１６からなる縦長の吸収性本体１７とによって構成されるものである。本実施形態のパンツ型おむつ１０は、吸収性本体１７と共に外層材１４を、これの股下部Ｃの中央部分で折り返して腹側部Ａと背側部Ｂとを重ね合わせるように二つ折りにすると共に、好ましくは背側部Ｂの両側縁部１８ｂと腹側部Ａの両側縁部１８ａとを、オス材１９及びメス材２０からなるメカニカルファスナー１３（図３及び図４（ａ），（ｂ）参照）を介して各々接合することによってパンツ形状に形成されることになる。 The absorbent article which concerns on preferable one Embodiment of this invention is manufactured as the underpants type diaper 10 as shown, for example in FIG.1 and FIG.2, and this underpants type diaper 10 is an elastic member to the base material sheet 11. FIG. 12a, 12b, 12c is an outer layer material 14 obtained by cutting a composite sheet member arranged in an expanded state, a liquid-permeable surface sheet material 15 attached to the inside of the outer layer material 14, and a liquid impervious material A leak-proof sheet material (not shown) and a vertically long absorbent main body 17 composed of a liquid-retaining absorbent body 16 interposed between these sheets. The underpants type diaper 10 of this embodiment folds the outer layer material 14 together with the absorbent main body 17 at the center of the crotch portion C so that the abdominal side A and the back side B are overlapped. At the same time, preferably, both side edge portions 18b of the back side portion B and both side edge portions 18a of the abdominal side portion A are connected to the mechanical fastener 13 (FIGS. 3 and 4A, 4B). To each other through a pant shape.

そして、本実施形態の吸収性物品としてのパンツ型おむつ１０は、例えば液透過性の表面シート材１５と、液不透過性の防漏シート材（図示せず）と、これらのシート材の間に介在する液保持性の吸収体１６とを具備する吸収性本体１７と、背側部Ｂと腹側部Ａと股下部Ｃとを含む外層材１４とからなり、図３及び図４（ａ），（ｂ）に示すように、背側部Ｂの両側縁部１８ｂと腹側部Ａの両側縁部１８ａとを、オス材１９及びメス材２０からなるメカニカルファスナー１３を介して各々接合することにより、パンツ形状に形成される吸収性物品であって、オス材１９は、背側部Ｂの側縁部１８ｂの内側面（身体側の面）に取り付けられており、メス材２０は、シート材からなり、外側辺部２０ａの裏面（外層材１４と対向する面）を、腹側部Ａの側縁部１８ａの内側面（身体側の面）に接合することにより、接合された外側辺部２０ａよりも内方部分を自由部分２０ｂとして延設させた状態で取り付けられており、オス材１９は、自由部分２０ｂにおいてメス材２０と係止して、背側部Ｂの両側縁部１８ｂと腹側部Ａの両側縁部１８ａとを接合している。 And the underpants type diaper 10 as an absorbent article of this embodiment is, for example, a liquid-permeable surface sheet material 15, a liquid-impermeable leak-proof sheet material (not shown), and a space between these sheet materials. 3 and 4 (a), comprising an absorbent main body 17 having a liquid-retaining absorbent body 16 interposed therebetween, and an outer layer material 14 including a back side portion B, an abdominal side portion A, and a crotch portion C. , (B), by joining the both side edges 18b of the dorsal side B and the both side edges 18a of the ventral side A via mechanical fasteners 13 made of a male material 19 and a female material 20, respectively. The male material 19 is attached to the inner side surface (the body side surface) of the side edge 18b of the back side B, and the female material 20 is a sheet material. And the back surface of the outer side portion 20a (the surface facing the outer layer material 14) Attached to the inner side surface (body side surface) of the side edge portion 18a of A, the inner side portion is attached as a free portion 20b extending from the joined outer side portion 20a, and the male side is attached. The material 19 is engaged with the female material 20 at the free portion 20b, and joins both side edges 18b of the back side B and both side edges 18a of the abdominal side A.

本実施形態によれば、パンツ型おむつ１０は、後述する工程と共に、従来のパンツ型おむつと略同様の製造工程によって製造されることになる。すなわち、例えば図５に示すように、原反ロールから連続的に供給される外層不織布を基材シート１１として、この基材シート１１に対して、例えばホットメルト型接着剤を連続的に塗工すると共に、ウェスト周り弾性部材１２ａ、レッグ周り弾性部材１２ｂ、及び胴周り部弾性部材１２ｃを所定の伸長率に伸長させた状態で各々複数本配設する。また各弾性部材１２ａ，１２ｂ，１２ｃが配設された基材シート１１を覆うようにして、例えば原反ロールから連続的に供給される帯状の内層不織布１１ａを接合することにより、基材シート１１と弾性部材１２ａ，１２ｂ，１２ｃと内層不織布１１ａとが一体となった複合シート部材を、外層材１４の連続体であるウェブ２１として形成する。 According to this embodiment, the underpants type diaper 10 is manufactured by the manufacturing process substantially the same as the conventional underpants type diaper with the process mentioned later. That is, for example, as shown in FIG. 5, an outer layer nonwoven fabric continuously supplied from an original fabric roll is used as a base sheet 11, and for example, a hot melt adhesive is continuously applied to the base sheet 11. At the same time, a plurality of waist elastic members 12a, leg elastic members 12b, and waist elastic members 12c are arranged in a state of being stretched to a predetermined elongation rate. Moreover, the base material sheet 11 is bonded by covering the base material sheet 11 on which the elastic members 12a, 12b, and 12c are disposed, for example, by joining the belt-shaped inner layer nonwoven fabric 11a continuously supplied from the raw fabric roll. A composite sheet member in which the elastic members 12 a, 12 b, 12 c and the inner layer nonwoven fabric 11 a are integrated is formed as a web 21 that is a continuous body of the outer layer material 14.

さらに、形成されるパンツ型おむつ１０の幅方向に連続して、横流れで送り出されれる外層材１４のウェブ２１に、表面シート材１５と防漏シート材と吸収体１６とからなる吸収性本体１７を間欠的に取り付けると共に、さらに送り出されるウェブ２１に、例えばレッグホールカッター装置を用いてレッグホール２２を開口形成する。しかる後に、外層材１４のウェブ２１を、吸収性本体１７を内側にして流れ方向と平行な二つ折り線に沿って折り畳み、吸収性本体１７を取り付けたウェブ２１を切り離して、個々の製品に分割することにより、パンツ型おむつ１０が形成されることになる。 Further, an absorbent main body 17 comprising a surface sheet material 15, a leak-proof sheet material, and an absorbent body 16 is formed on the web 21 of the outer layer material 14 that is continuously fed in the width direction of the formed pant diaper 10. Are attached intermittently, and a leg hole 22 is formed in the web 21 to be fed out by using, for example, a leg hole cutter device. After that, the web 21 of the outer layer material 14 is folded along a fold line parallel to the flow direction with the absorbent main body 17 inside, and the web 21 attached with the absorbent main body 17 is cut off and divided into individual products. By doing so, the underpants type diaper 10 is formed.

そして、本実施形態のパンツ型おむつ１０は、図３及び図４（ａ），（ｂ）に示すように、オス材１９及びメス材２０からなるメカニカルファスナー１３を介して背側部Ｂの両側縁部１８ｂと腹側部Ａの両側縁部１８ａとが各々接合されるものであり、メカニカルファスナー１３のオス材１９としては、例えば基材の一面に多数の鈎状、キノコ状、Ｔ字状、Ｙ字状等のフックを起立してなる公知の各種のメカニカルファスナーのオス材を用いることができる。また、本実施形態によれば、オス材１９は、例えば幅３〜４０ｍｍ程度の帯状に形成され、背側部Ｂの両サイドの側縁部１８ｂに沿って、上下の端部に非設置部分を残しつつ、略全長にわたって、当該側縁部１８ｂの内側面に、例えばヒートシールや超音波等による熱融着の方法や、ホットメルト等の接合手段を介して貼り付けられて、相当の接合強度を発現するように取り付けられている。なお、上下の端部の非設置部分は、パンツ型おむつ１０を着用者から取り外す際のきっかけとなるつまみしろとして機能すると共に、突起部のあるオス材１９の表面や裏面、或いは角部が着用者の肌に直接触れないようにするために残置される部分である。非設置部分の寸法は、好ましくは１〜３０ｍｍであり、特に好ましくは５〜２０ｍｍである。 And as shown in FIG.3 and FIG.4 (a), (b), the underpants type diaper 10 of this embodiment is the both sides of the back side part B via the mechanical fastener 13 which consists of the male material 19 and the female material 20. FIG. The edge portion 18b and both side edge portions 18a of the ventral side portion A are respectively joined, and as the male material 19 of the mechanical fastener 13, for example, a large number of bowl-shaped, mushroom-shaped, T-shaped, Various male fasteners of known mechanical fasteners formed by raising a hook such as a Y-shape can be used. Further, according to the present embodiment, the male member 19 is formed in a band shape having a width of about 3 to 40 mm, for example, and is not installed at the upper and lower end portions along the side edge portions 18b on both sides of the back side portion B. Is attached to the inner side surface of the side edge portion 18b over substantially the entire length, for example, by a heat sealing method such as heat sealing or ultrasonic waves, or by a bonding means such as hot melt. It is attached to develop strength. In addition, the non-installation part of the upper and lower end portions functions as a pinch for triggering the removal of the pant-type diaper 10 from the wearer, and is worn on the front surface, the back surface, or the corner portion of the male material 19 having the protrusions. It is the part that is left behind so that it does not touch the person's skin directly. The dimension of the non-installation part is preferably 1 to 30 mm, particularly preferably 5 to 20 mm.

ここで、本実施形態によれば、オス材１９が背側部Ｂの両側縁部１８ｂの内側面に取り付けられていることにより、例えばパンツ型おむつ１０を使用後に廃棄する際に、腹側部Ａを内側に丸め込むようにしつつ外側を背側部Ｂで覆った状態で、オス材１９を用いて背側部Ｂの両側縁部１８ｂを丸め込んだパンツ型おむつ１０の外周部分に固定することにより、廃棄テープ等を別途に用いることなく、使用後のパンツ型おむつ１０をコンパクトにまとめることが可能になり、ごみを小さくしたり、***物の臭いを漏れ難くすることができ、これによってパンツ型おむつ１０の廃棄性を向上させることが可能になる。また、オス材１９は、背側部Ｂの側縁部１８ｂにおいて、外側縁から３０ｍｍ以上離れることなく取り付けられていることが好ましい。これによって、オス材１９の外側に延出する自由部分２０ｂを過度に長くする必要がなくなると共に、おむつの胴回りの内寸を形成するために材料が有効に使われることとなり、これらによって材料の無駄が生じるのを効果的に回避することが可能になる。 Here, according to this embodiment, when the male material 19 is attached to the inner surface of the both side edge portions 18b of the back side portion B, for example, when the pants-type diaper 10 is discarded after use, the ventral side portion By fixing A to the outer peripheral part of the pants-type diaper 10 in which both side edges 18b of the back side part B are rounded using the male material 19 with the outside covered with the back side part B while making A round. The pants-type diaper 10 after use can be gathered in a compact manner without using a separate disposal tape, etc., making it possible to reduce trash and make it difficult to leak the smell of excrement, thereby making the pants-type It becomes possible to improve the discardability of the diaper 10. Moreover, it is preferable that the male material 19 is attached in the side edge part 18b of the back side part B, without leaving | separating 30 mm or more from an outer side edge. As a result, it is not necessary to make the free portion 20b extending to the outside of the male material 19 excessively long, and the material is effectively used to form an inner dimension around the waist of the diaper. Can effectively be avoided.

メカニカルファスナー１３のメス材２０としては、機能の面からいうと、製品として出荷される際、オス材１９と係止されて必要強度を発現し、製品を使い終わる間際まで強度を保つことを可能にする素材であればよい。そのため、その材料はオス材１９の選択によっても変わることとなる。再係止を念頭において設計するかどうかも、メス材２０を選択する上で重要な基準となる。また、もうひとつの大切な機能として、外層材１４と接合されたときにその接合強度を保ち、着用中の負荷に対して自らが破断することのない材料強度を有していることが好ましい。メス材２０としては、例えば基材シート上に多数の繊維をループ状又はアーチ状に編み込んでなる編み物の他、所定の坪量や繊維の維度を備える不織布等の、公知の各種のメカニカルファスナーのメス材を用いることができる。もちろん、所望の物性を満たすものであれば、外層材１４に用いている材料と同じ材料をそのまま転用することもできる。またおむつ内の環境を改善するためには、通気性のある素材が望まれる。本実施形態によれば、メス材２０として、好ましくは熱融着性に優れ、伸縮可能な不織布を用いることできる。メス材２０として熱融着性に優れた不織布を用いることは、メス材２０と外層材１４の接合強度を確保しつつ、生産性を高める上で非常に重要である。またメス材２０として伸縮可能な不織布を用いることにより、メス材２０にも伸縮性を持たせることとなり、パンツ型オムツ１０の着用者へのフィット性を高めることが可能になる。 As for the female material 20 of the mechanical fastener 13, in terms of function, when shipped as a product, it is locked with the male material 19 to express the necessary strength, and it is possible to maintain the strength until just before using the product. Any material can be used. Therefore, the material will change depending on the selection of the male material 19. Whether or not to design with re-locking in mind is also an important criterion in selecting the female material 20. In addition, as another important function, it is preferable to have a material strength that maintains its bonding strength when bonded to the outer layer material 14 and does not break itself against a load during wearing. Examples of the female material 20 include various kinds of known mechanical fasteners such as a knitted fabric in which a large number of fibers are knitted in a loop shape or an arch shape on a base sheet, and a nonwoven fabric having a predetermined basis weight and fiber consistency. A female material can be used. Of course, as long as the desired physical properties are satisfied, the same material as that used for the outer layer material 14 can be used as it is. In order to improve the environment in the diaper, a breathable material is desired. According to this embodiment, as the female material 20, a nonwoven fabric that is preferably excellent in heat-fusibility and stretchable can be used. The use of a non-woven fabric excellent in heat-fusibility as the female material 20 is very important for enhancing the productivity while ensuring the bonding strength between the female material 20 and the outer layer material 14. In addition, by using a stretchable nonwoven fabric as the female material 20, the female material 20 is also provided with stretchability, and the fit of the pant-type diaper 10 to the wearer can be enhanced.

本実施形態によれば、メス材２０は、例えば片側につき幅５〜５０ｍｍ程度の帯状シート材料からなり、例えば幅１〜２０ｍｍ程度、好ましくは３〜１０ｍｍ程度の外側辺部２０ａの裏面を、例えばホットメルト型接着剤や熱融着シール等の接合手段を介して腹側部Ａの両サイドの側縁部１８ａの内側面に接合することにより、当該側縁部１８ｂの略全長にわたって取り付けられている。メス材２０と側縁部１８ａとの接合については、その使われ方や、接合後の材料の物性等を考慮して、適宜設計することができる。例えば、接合箇所の接合面積は、素材のやわらかさを損なわないようにしたり、接合部分の剛性を抑えるために、極力小さくしておくことが好ましい。できれば、連続した面での接合ではなく、部分接合となるポイントシールをすることが好ましい。ポイントシールとしては、円形、楕円形、矩形、ひし形、線状などの形状をもったシール面を、間隔を置いて配置することが好ましい。またメス材２０は、外側辺部２０ａを側縁部１８の側縁に近接させて取り付けることが好ましい。これによって、パンツ型オムツの胴回りの内寸を形成する材料を有効に使うことができるとともに、オス材１９の略全域を効果的にメス材２０に係止させることが可能になる。さらに、メス材２０は、メス材２０とオス材１９とを接合した際に、メス材２０の自由部分２０ｂの自由端が、オス材１９の内側縁を越える長さで延設するように設けることが好ましい。これによって、内側に向いたオス材１９をメス材２０の自由端を越えてはみ出させることなくメス材２０によって確実に覆って、オス材１９のフックが肌に直接触れて違和感を生じさせるのを効果的に回避することが可能になる。 According to the present embodiment, the female member 20 is made of, for example, a belt-like sheet material having a width of about 5 to 50 mm per side, and the back surface of the outer side portion 20a having a width of about 1 to 20 mm, preferably about 3 to 10 mm, for example, By being joined to the inner side surface of the side edge portion 18a on both sides of the abdominal side portion A through a joining means such as a hot-melt adhesive or a heat-sealing seal, the side edge portion 18b is attached over substantially the entire length. Yes. The joining of the female material 20 and the side edge portion 18a can be appropriately designed in consideration of how it is used and the physical properties of the material after joining. For example, it is preferable to keep the joining area of the joining portion as small as possible so as not to impair the softness of the material or to suppress the rigidity of the joining portion. If possible, it is preferable to perform point sealing that is partial bonding rather than continuous bonding. As the point seal, it is preferable that seal surfaces having a circular shape, an elliptical shape, a rectangular shape, a rhombus shape, a linear shape, and the like are arranged at intervals. Moreover, it is preferable that the female material 20 is attached with the outer side portion 20 a being close to the side edge of the side edge portion 18. This makes it possible to effectively use the material that forms the inner size around the waist of the pant-type diaper, and to effectively lock the female material 20 over substantially the entire area of the male material 19. Furthermore, the female member 20 is provided so that the free end of the free portion 20b of the female member 20 extends beyond the inner edge of the male member 19 when the female member 20 and the male member 19 are joined. It is preferable. As a result, the male material 19 facing inward is surely covered with the female material 20 without protruding beyond the free end of the female material 20, and the hook of the male material 19 directly touches the skin to cause a sense of incongruity. It can be effectively avoided.

なお、本実施形態によれば、メス材２０の外側辺部２０ａの、腹側部Ａの側縁部１８ａの内側面に対する接合強度は、３Ｎ／３０ｍｍ以上であることが好ましく、さらに好ましくは５Ｎ／ｍｍ以上、特に好ましくは８Ｎ／３０ｍｍ以上である。パンツ型おむつ１０の着用時においては、オス材１９とメス材２０によるメカニカルファスナー１３の接合部とは異なり、メス材２０の外側辺部２０ａと側縁部１８ａの内側面との接合部には、Ｔ字方向の引っ張り力が負荷されることになるが、かかる接合部の接合強度を３Ｎ／３０ｍｍ以上とすることにより、負荷されるＴ字方向の引っ張り力に効果的に抵抗することが可能になる。 In addition, according to this embodiment, it is preferable that the joining strength with respect to the inner surface of the side edge part 18a of the abdominal side part A of the outer side part 20a of the female material 20 is 3N / 30mm or more, More preferably, 5N / Mm or more, particularly preferably 8 N / 30 mm or more. When the pants-type diaper 10 is worn, the joint between the outer side 20a of the female 20 and the inner side of the side edge 18a is different from the joint of the mechanical fastener 13 by the male 19 and female 20. The tensile force in the T-shaped direction is loaded, but it is possible to effectively resist the loaded tensile force in the T-shaped direction by setting the bonding strength of the bonded portion to 3 N / 30 mm or more. become.

また、本実施形態によれば、パンツ型おむつ１０の背側部Ｂの両側縁部１８ｂと腹側部Ａの両側縁部１８ａには、ウェスト周り弾性部材１２ａ、レッグ周り弾性部材１２ｂ、及び胴回り弾性部材１２ｃが配設されており、オス材１９及びメス材２０の取り付け箇所において、弾性部材１２ａ，１２ｂ，１２ｃの少なくとも一部が、弾性による収縮機能が実質的に発現されないようになっている。収縮機能を発現させない方法としては、弾性部材１２ａ，１２ｂ，１２ｃの分断や、熱シールによる非機能化等を挙げることができる。 Further, according to the present embodiment, the waist elastic member 12a, the leg elastic member 12b, and the waist elastic are provided on the side edge 18b of the back side B of the pant-type diaper 10 and the side edge 18a of the abdominal side A. The member 12c is disposed, and at the part where the male member 19 and the female member 20 are attached, at least a part of the elastic members 12a, 12b, and 12c does not substantially exhibit a contraction function due to elasticity. Examples of the method that does not exhibit the contraction function include division of the elastic members 12a, 12b, and 12c, non-functionalization by heat sealing, and the like.

ここで、ウェスト周り弾性部材１２ａ、レッグ周り弾性部材１２ｂ、及び胴回り弾性部材１２ｃを収縮機能が発現されないようにする手段としては、例えば特開２００２−２５３６０５号公報に記載の複合伸縮部材の製造方法に用いる弾性部材分断部と略同様の構成を備えるものを採用することがきる。すなわち、この弾性部材分断部は、弾性部材切断用の多数の凸部を有する加圧部を周面に備えたカットロールと、カットロールに対向配置された表面平滑なアンビルロールとからなり、これらのロールの間に、基材シート１１に弾性部材１２ａ，１２ｂ，１２ｃを伸長状態で配設した外層材１４のウェブ２１を通過させると共に、オス材１９及びメス材２０の取り付け箇所に加圧部から加圧力を加えることにより、加圧部に設けられた多数の凸部を介して、各弾性部材１２ａ，１２ｂ，１２ｃを、ウェブ２１の損傷を実質的に抑制しつつ、当該取り付け箇所において連続しないように、各々複数に分断するものである。（以後、この手段を「プレカット」と記す。）また多数の凸部をカッター刃としたプレカットカッターによるプレカット手段を採用することもできる。 Here, as a means for preventing the contraction function from appearing in the waist elastic member 12a, the leg elastic member 12b, and the waist elastic member 12c, for example, a method of manufacturing a composite elastic member described in JP-A-2002-253605 It is possible to employ one having substantially the same configuration as the elastic member dividing portion used in the above. That is, the elastic member dividing portion is composed of a cut roll having a pressing portion having a large number of convex portions for cutting the elastic member on the peripheral surface, and an anvil roll having a smooth surface disposed facing the cut roll. The web 21 of the outer layer material 14 in which the elastic members 12a, 12b, and 12c are disposed in an expanded state is passed through the base sheet 11 between the rolls, and a pressurizing portion is attached to the attachment location of the male material 19 and the female material 20 By applying a pressing force from above, the elastic members 12a, 12b, and 12c are continuously connected at the attachment locations while substantially preventing damage to the web 21 through a large number of convex portions provided in the pressing portion. In order not to be divided, each is divided into a plurality of pieces. (Hereinafter, this means is referred to as “pre-cut”.) Further, a pre-cut means using a pre-cut cutter having a large number of convex portions as cutter blades may be employed.

なお、ウェスト周り弾性部材１２ａ、レッグ周り弾性部材１２ｂ、胴回り弾性部材１２ｃをプレカットして、オス材１９及びメス材２０の取り付け箇所で収縮機能が発現されないようにすることにより、パンツ型おむつ１０の製造工程において、切り離し予定線２３（図６参照）でウェブ２１を切り離して、個々の製品に分割する際に、オス材１９やメス材２０の取り付け箇所が、各弾性部材がテンションフリーになることで開放されて収縮・カールし、外観や使い易さが損なわれるのを効果的に回避することが可能になる。 In addition, the waist elastic member 12a, the leg elastic member 12b, and the waist elastic member 12c are pre-cut so that the contraction function is not exhibited at the attachment positions of the male material 19 and the female material 20, thereby allowing the pant-type diaper 10 to be developed. In the manufacturing process, when the web 21 is separated by the planned separation line 23 (see FIG. 6) and divided into individual products, the elastic members are tension-free at the attachment positions of the male material 19 and the female material 20. It is possible to effectively prevent the appearance and ease of use from being lost by shrinking and curling after being released.

また、ウェスト周り弾性部材１２ａ、レッグ周り弾性部材１２ｂ、胴回り弾性部材１２ｃを分断して非機能化した部分に隣接する箇所には、例えばホットメルト型接着剤等による、弾性部材１２ａ，１２ｂ，１２ｃの抜けを防止するための固定手段を追加的に設けることが好ましい。その際、弾性部材１２ａ，１２ｂ，１２ｃに直接塗布する方法は、接着強度の向上に効果的である。 Further, elastic members 12a, 12b, 12c made of, for example, hot melt adhesive are provided at portions adjacent to the non-functionalized portions around the waist elastic member 12a, leg elastic member 12b, and waist elastic member 12c. It is preferable to additionally provide a fixing means for preventing the slippage. In that case, the method of directly applying to the elastic members 12a, 12b, and 12c is effective in improving the adhesive strength.

そして、背側部Ｂの両側縁部１８ｂと腹側部Ａの両側縁部１８ａの内側面同士を対向配置させて、これらをオス材１９及びメス材２０からなるメカニカルファスナー１３を介して各々接合してなる本実施形態のパンツ型おむつ１０によれば、接合部において多くのメス材２０を用いることなく、着用時における引っ張り力がせん断方向の引っ張り力として負荷されるようにすることが可能になって、十分な接合強度を容易且つ効率良く得ることができる。すなわち、本実施形態によれば、図３及び図４（ａ），（ｂ）に示すように、オス材１９は、背側部Ｂの側縁部１８ｂの内側面に取り付けられており、メス材２０は、外側辺部２０ａの裏面を腹側部Ａの側縁部１８ａの内側面に接合することにより、外側辺部２０ａよりも内方部分を自由部分２０ｂとして延設させた状態で取り付けられており、且つオス材１９は、自由部分２０ｂにおいてメス材２０と係止しているので、パンツ型おむつ１０の装着時に、オス材１９と係止したメス材２０の自由部分２０ｂを背側部Ｂの側に開かせて、着用者の腰回り部に沿って周方向に延設させることが可能になり、これによって、Ｃ形に折り畳まれる２倍の長さのメス材を用いることなく、効率良く且つ効果的に、着用時における引っ張り力がせん断方向の引っ張り力として負荷されるようすることが可能になる。 And the inner side surfaces of the both side edge portions 18b of the back side portion B and the both side edge portions 18a of the abdominal side portion A are arranged to face each other, and these are joined to each other via the mechanical fastener 13 composed of the male material 19 and the female material 20. According to the pants-type diaper 10 of the present embodiment, the tensile force at the time of wearing can be applied as the tensile force in the shearing direction without using many female members 20 at the joint. Thus, a sufficient bonding strength can be obtained easily and efficiently. That is, according to this embodiment, as shown in FIG. 3 and FIGS. 4A and 4B, the male material 19 is attached to the inner side surface of the side edge portion 18 b of the back side portion B, and the female The material 20 is attached in a state in which the inner side portion extends from the outer side portion 20a as the free portion 20b by joining the back surface of the outer side portion 20a to the inner side surface of the side edge portion 18a of the ventral side portion A. Since the male material 19 is locked to the female material 20 at the free portion 20b, the free portion 20b of the female material 20 locked to the male material 19 is attached to the back side when the pant-type diaper 10 is mounted. It can be opened to the side of the part B and can be extended in the circumferential direction along the waist of the wearer, and without using a double length female material that is folded into a C shape. Efficient and effective, the tensile force when wearing is shearing It is possible to be loaded as a pulling force.

また、上述の構成を有する本実施形態のパンツ型おむつ１０は、図５及び図６に示すように、簡易な製造方法によって容易に形成することができる。すなわち、本実施形態によれば、上述のように、従来の製造工程と同様に、液透過性の表面シート材１５（図２参照）と、液不透過性の防漏シート材と、これらのシート材の間に介在する液保持性の吸収体１６（図２参照）とを具備する吸収性本体１７を間欠的に取り付けた外層材１４のウェブ２１を、連続的に横流れで送り出す工程と、送り出されるウェブ２１を、吸収性本体１７を内側にして流れ方向と平行な二つ折り線に沿って折り畳んだ後に、ウェブ２１を個々のパンツ型おむつ１０として切り離す工程とを含んでいる。 Moreover, as shown in FIG.5 and FIG.6, the underpants type diaper 10 of this embodiment which has the above-mentioned structure can be easily formed with a simple manufacturing method. That is, according to the present embodiment, as described above, the liquid-permeable surface sheet material 15 (see FIG. 2), the liquid-impermeable leak-proof sheet material, and these, as in the conventional manufacturing process, A step of continuously feeding out the web 21 of the outer layer material 14 to which the absorbent main body 17 having the liquid retaining absorbent body 16 (see FIG. 2) interposed between the sheet materials is intermittently attached; The web 21 to be fed out is folded along a fold line parallel to the flow direction with the absorbent main body 17 inside, and then the web 21 is separated as individual pant-type diapers 10.

一方、本実施形態の製造方法によれば、ウェブ２１を折り畳んで個々のパンツ型おむつ１０に切り離す工程に先立って、ウェブ２１の背側部Ｂにおける切り離し予定線２３を挟んだ両側に、切り離して形成される各パンツ型おむつ１０の背側部Ｂの両側縁部１８ｂの内側面に配置して、オス材１９を例えばホットメルトを介して取り付けると共に、ウェブ２１の腹側部Ａにおける切り離し予定線２３を挟んだ両側に、切り離して形成される各パンツ型おむつ１０の腹側部Ａの両側縁部１８ａの内側面に配置して、外側辺部２０ａを例えばポイントシールを介して接合することにより、自由部分２０を延設させた状態で、メス材２０を取り付ける工程を備えている。なお、メス材２０とオス材１９とを一体化した後に、背側部Ｂまたは腹側部Ａに供給することもできる。 On the other hand, according to the manufacturing method of the present embodiment, prior to the step of folding the web 21 and separating it into individual pant-type diapers 10, the web 21 is separated on both sides of the planned separation line 23 on the back side B of the web 21. The male material 19 is attached via, for example, hot melt and disposed on the inner side surface of both side edge portions 18b of the back side portion B of each pant-type diaper 10 to be formed, and the planned separation line at the ventral side portion A of the web 21 By arranging the outer side portions 20a on the inner side surfaces of both side edge portions 18a of the ventral side portion A of each of the pant-type diapers 10 formed separately on both sides of the pants-type diaper 10, and joining the outer side portions 20a through point seals, for example The step of attaching the female material 20 with the free portion 20 extended is provided. In addition, after integrating the female material 20 and the male material 19, it can also supply to the back side part B or the abdominal side part A. FIG.

そして、ウェブ２１を二つ折りに折り畳んだ際に、オス材１９をメス材２０の自由部分２０ｂに係止させ、切り離し予定線２３でウェブ２１を個々に切り離すことにより、背側部Ｂの両側縁部１８ｂと腹側部Ａの両側縁部１８ａがメカニカルファスナー１３を介して各々接合された、本実施形態の吸収性物品としてのパンツ型おむつ１０が、例えばメス材を２重に折り畳む複雑な工程を要することなく、従来の横流れの製造工程と略同様の簡易な工程によって、容易に形成されることになる。付け加えて言うならば、ウェブ２１を二つ折りに折り畳んだ際、オス材１９とメス材２０の自由部分を係止させるわけであるが、その係止力を高めるために追加的な加圧手段を設けることが好ましい。追加的な加圧手段において、一対のロール間を通して加圧する場合、係止領域のみ部分的に加圧し、一対のロールのそれぞれに若干の速度差を設け、せん断方向の力を与えながら加圧することもでき、これによって係止力の向上を図ることができる。 Then, when the web 21 is folded in half, the male material 19 is locked to the free portion 20b of the female material 20, and the web 21 is individually separated by the planned separation line 23, whereby both side edges of the back side portion B are obtained. The pants-type diaper 10 as the absorbent article of the present embodiment, in which the side edge portions 18a of the portion 18b and the ventral side portion A are joined via the mechanical fastener 13, respectively, is a complicated process of folding a female material in a double manner, for example. It is not necessary, and it is easily formed by a simple process substantially the same as the conventional cross-flow manufacturing process. In addition, when the web 21 is folded in half, the free portions of the male member 19 and the female member 20 are locked. In order to increase the locking force, an additional pressurizing means is provided. It is preferable to provide it. In an additional pressurizing means, when pressurizing between a pair of rolls, press only partly in the locking region, provide a slight speed difference to each of the pair of rolls, and apply pressure in a shearing direction. Thus, the locking force can be improved.

また、本実施形態の製造方法によれば、ウェブ２１の背側部Ｂにおける各切り離し予定線２３を挟んだ両側に、オス材１９をツーピースの部材として各々取り付ける一方で、ウェブ２１の腹側部Ａには、メス材２０を、各切り離し予定線２３を挟んだ両側に跨って連続する一部材として取り付けておき、切り離し予定線２３でウェブ２１が切断される際に、各パンツ型おむつ１０の腹側部Ａの両側縁部１８ａにメス材２０が各々取り付けられるようにすることが好ましい。オス材１９をツーピースとすることで、背側部Ｂの両側縁に隣接するオス材（しばしばこのオス材は着用者に違和感与える）をなくすことができるとともに、単価の高いオス材の使用量を削減することでコストを抑えることができる。また、メス材２０を連続する一部材として取り付けることで、自由端を形成する必要のあるメス材２０のハンドリングを容易にし、各切り離し予定線２３を挟んだ両側にメス材２０を各々取り付ける作業の簡略化を図ることが可能になる。このとき、メス材２０と外層材２４との接合部分は、切り離し予定線２３に重なって配置されていてもよいが、好ましくは切り離し予定線２３を外した両側にて接合することが好ましい。そうすることによって、切り離し予定線２３の接合部分の硬さを抑えることができ、着用者に優しい設計とすることができる。 In addition, according to the manufacturing method of the present embodiment, the male material 19 is attached as a two-piece member on both sides of the web 21 on the back side portion B of the web 21 with the planned separation lines 23 interposed therebetween, while the ventral side portion of the web 21 is attached. In A, the female material 20 is attached as a continuous member across both sides of each separation line 23, and when the web 21 is cut along the separation line 23, It is preferable that the female members 20 are respectively attached to both side edge portions 18a of the ventral side portion A. By using the male material 19 as a two-piece, it is possible to eliminate the male material adjacent to both side edges of the back side B (often this male material gives the wearer a sense of incongruity) and to reduce the amount of male material used with a high unit price. By reducing the cost, the cost can be suppressed. Further, by attaching the female material 20 as a continuous member, it is easy to handle the female material 20 that needs to form a free end, and each of the female materials 20 is attached to both sides of each scheduled separation line 23. Simplification can be achieved. At this time, the joint portion between the female member 20 and the outer layer member 24 may be disposed so as to overlap the planned separation line 23, but it is preferable to join on both sides of the planned separation line 23. By doing so, the hardness of the junction part of the separation line 23 can be suppressed, and it can be set as a wearer-friendly design.

さらに、本実施形態の製造方法によれば、ウェブ２１の腹側部Ａにおける各切り離し予定線２３を挟んだ両側に取り付けられるメス材２０の自由部分２０ｂを仮着する工程を含めることができる。仮着というのは、メス材２０の自由部分は本来ウェブ２１に対して接合されてはならないが、加工中に開いてめくれることによって問題が発生しないようにするために、使用時には簡単に剥がすことができる程度にウェブ２１に対してメス材２０の自由部分を接着しておくというものである。仮着を行う手段としては、ホットメルト型接着剤や、熱融着シール、圧着などの公知の手段を採用することができる。材破を伴わない程度にウェブ２１と仮着することが好ましい。これによって、パンツ型おむつ１０の製造中における自由部分２０ｂのめくれを効果的に回避することが可能になる。 Furthermore, according to the manufacturing method of this embodiment, the process of temporarily attaching | bonding the free part 20b of the female material 20 attached to the both sides which pinched | interposed each separation planned line 23 in the stomach side part A of the web 21 can be included. Temporary attachment means that the free part of the female material 20 should not be bonded to the web 21 originally, but it should be easily peeled off during use in order to avoid problems caused by opening it during processing. The free part of the female material 20 is adhered to the web 21 to such an extent that the web 21 can be formed. As means for performing temporary attachment, known means such as a hot-melt adhesive, a heat-sealing seal, and pressure bonding can be employed. It is preferable to temporarily attach the web 21 to the extent that no material breakage occurs. This makes it possible to effectively avoid turning over the free portion 20b during the manufacture of the pant-type diaper 10.

さらにまた、本実施形態の製造方法によれば、ウェブ２１の各切り離し予定線２３を挟んだ両側にオス材１９やメス材２０を各々取り付ける工程に先立って、上述のように、これらの取り付け箇所における弾性部材１２ａ，１２ｂ，１２ｃを、予めプレカットして収縮機能が発現されないようにする工程を含めることが好ましい。特にオス材１９と重なる部分の外層材１４においては、メス材２０の自由部分との係着を考えても、収縮機能が発現されないようにされていることが好ましい。 Furthermore, according to the manufacturing method of the present embodiment, prior to the step of attaching the male material 19 and the female material 20 to both sides of the web 21 with the respective planned separation lines 23 therebetween, as described above, these attachment locations are provided. It is preferable to include a step of pre-cutting the elastic members 12a, 12b, and 12c in order to prevent the contraction function from being expressed. In particular, in the outer layer material 14 that overlaps the male material 19, it is preferable that the contraction function is not expressed even in consideration of engagement with the free portion of the female material 20.

なお、本発明は上記実施形態に限定されることなく種々の変更が可能である。例えば、本発明はパンツ型おむつに限定されることなく、その他のパンツ形状を備える種々の吸収性物品に適用することができる。上述した実施形態においては、吸収性本体と外層体とからなるパンツ型おむつについて詳述したが、吸収性本体を備えていない形のパンツ型おむつにも適用することが可能である。また、本発明の吸収性物品は、上記実施形態の製造方法によって製造されるものに限定されることなく、その他の製造方法によって製造することもでき、横流れの製造方法のみならず、縦流れの製造法によって製造されたものであっても良い。さらに、オス材を腹側部の側縁部に取り付け、メス材を背側部の側縁部に取り付けて、メカニカルファスナーによる接合部を構成しても良い。さらにまた、使用後のパンツ型おむつを着用者から取り外す際には、メカニカルファスナーに剥離方向の力をかければ、係止されたサイド部分を容易に剥がすことができるが、その際にオス材を小さく適用して上側の部分をつまみとすることが好ましいことは、上述した。それとは違った形で、例えば図７に示すように、腹側部Ａの側縁部１８ａに凹状に切り欠いた摘み部２４を設けて背側部Ｂの側縁部１８ｂを摘みやすくすることにより、メカニカルファスナーによる接合部の引き剥がしやすさを向上することができる。また、仮に再接合を行う場合であっても、再接合を容易にすることもできる。さらに、本発明の吸収性物品は、上述の構成のオス材及びメス材からなるメカニカルファスナーによって背側部の両側縁部と腹側部の両側縁部とを接合したものの他、背側部の片側の側縁部と腹側部の片側の側縁部のみを上述のメカニカルファスナーによって接合したものであっても良い。 The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the present invention is not limited to a pants-type diaper, but can be applied to various absorbent articles having other pant shapes. In embodiment mentioned above, although the underpants type diaper which consists of an absorptive main body and an outer layer body was explained in full detail, it is also applicable to the underpants type diaper of the form which is not equipped with an absorptive main body. In addition, the absorbent article of the present invention is not limited to the one manufactured by the manufacturing method of the above embodiment, but can be manufactured by other manufacturing methods. It may be manufactured by a manufacturing method. Furthermore, a male material may be attached to the side edge of the abdominal side, and a female material may be attached to the side edge of the dorsal side to constitute a joint portion using a mechanical fastener. Furthermore, when removing the pants-type diaper after use from the wearer, if the force in the peeling direction is applied to the mechanical fastener, the locked side portion can be easily peeled off. As described above, it is preferable to apply a small portion and use the upper portion as a knob. In a different form, for example, as shown in FIG. 7, the side edge 18a of the ventral side A is provided with a knob 24 cut out in a concave shape so that the side edge 18b of the back side B can be easily picked. Thereby, the ease of peeling of the junction part by a mechanical fastener can be improved. Further, even if rejoining is performed, rejoining can be facilitated. Furthermore, the absorbent article of the present invention is obtained by joining both side edges of the back side and both side edges of the abdomen using a mechanical fastener made of the male material and the female material having the above-described configuration, and one side of the back side. Only one side edge portion of the side edge portion and the abdominal side portion may be joined by the mechanical fastener described above.

本発明の一実施形態に係る吸収性物品であるパンツ型おむつを示す正面図である。It is a front view showing a pants type diaper which is an absorptive article concerning one embodiment of the present invention. 本発明の一実施形態に係る吸収性物品であるパンツ型おむつの両側縁部を接合する前の状態を示す正面図である。It is a front view which shows the state before joining the both-sides edge part of the underpants type diaper which is an absorptive article concerning one embodiment of the present invention. 本発明の一実施形態に係る吸収性物品であるパンツ型おむつの要部を説明する略示斜視図である。It is a schematic perspective view explaining the principal part of the underpants type diaper which is an absorptive article concerning one embodiment of the present invention. 本発明の一実施形態に係る吸収性物品であるパンツ型おむつの要部を説明する、（ａ）は部分斜視図、（ｂ）は（ａ）のＤ−Ｄに沿った断面図である。The principal part of the underpants type diaper which is an absorbent article which concerns on one Embodiment of this invention is demonstrated, (a) is a fragmentary perspective view, (b) is sectional drawing along DD of (a). 本発明の一実施形態に係る吸収性物品であるパンツ型おむつの製造工程を説明する略示斜視図である。It is a schematic perspective view explaining the manufacturing process of the underpants type diaper which is an absorptive article concerning one embodiment of the present invention. 本発明の一実施形態に係る吸収性物品であるパンツ型おむつの製造工程の要部を説明する平面図である。It is a top view explaining the principal part of the manufacturing process of the underpants type diaper which is an absorptive article concerning one embodiment of the present invention. 本発明の一実施形態に係る吸収性物品であるパンツ型おむつの他の形態の要部を説明する略示斜視図である。It is a schematic perspective view explaining the principal part of the other form of the underpants type diaper which is an absorptive article concerning one embodiment of the present invention. 従来のメカニカルファスナーによる接合部の説明図である。It is explanatory drawing of the junction part by the conventional mechanical fastener. 従来のメカニカルファスナーによる接合部の説明図である。It is explanatory drawing of the junction part by the conventional mechanical fastener. 従来のメカニカルファスナーによる接合部の説明図である。It is explanatory drawing of the junction part by the conventional mechanical fastener.

符号の説明Explanation of symbols

１０パンツ型おむつ（吸収性物品）
１１基材シート
１２ａウェスト周り弾性部材
１２ｂレッグ周り弾性部材
１２ｃ胴周り部弾性部材
１３メカニカルファスナー
１４外層材
１５表面シート材
１６吸収体
１７吸収性本体
１８ａ腹側部の側縁部
１８ｂ背側部の側縁部
１９オス材
２０メス材
２０ａメス材の外側辺部
２０ｂメス材の自由部分
２１ウェブ（外層材の連続体）
２２レッグホール
２３切り離し予定線
２４摘み部
Ａ腹側部
Ｂ背側部
Ｃ股下部
10 Pants-type diapers (absorbent articles)
11 base material sheet 12a waist elastic member 12b leg elastic member 12c waist elastic member 13 mechanical fastener 14 outer layer material 15 surface sheet material 16 absorbent body 17 absorptive main body 18a abdominal side edge 18b Side edge portion 19 Male material 20 Female material 20a Female material outer side 20b Female material free portion 21 Web (continuum of outer layer material)
22 leg hole 23 planned separation line 24 knob part A ventral part B dorsal part C inseam

Claims

液透過性の表面シート材と、液不透過性の防漏シート材と、これらのシート材の間に介在する液保持性の吸収体とを備え、吸収体の背側部と腹側部の側方に延出する外層材を有し、背側部の側縁部と腹側部の側縁部とを、オス材及びメス材からなるメカニカルファスナーを介して各々接合することにより、パンツ形状に形成される吸収性物品であって、
前記オス材は、前記背側部又は腹側部の何れか一方の側縁部の内側面に取り付けられており、
前記メス材は、シート材からなり、外側辺部の裏面を、前記背側部又は腹側部の他方の側縁部の内側面に接合することにより、接合された前記外側辺部よりも内方部分を自由部分として延設させた状態で取り付けられており、
前記オス材は、前記自由部分において前記メス材と係止して、前記背側部の側縁部と腹側部の側縁部とを接合している吸収性物品。 A liquid-permeable surface sheet material, a liquid-impermeable leak-proof sheet material, and a liquid-retaining absorbent body interposed between these sheet materials, the back side and the ventral side of the absorbent body It has an outer layer material that extends in the direction, and is formed into a pants shape by joining the side edge portion of the back side portion and the side edge portion of the abdominal side portion via a mechanical fastener made of male material and female material, respectively. An absorbent article to be made,
The male material is attached to the inner surface of one of the side edge portions of the back side portion or the abdominal side portion,
The female material is made of a sheet material, and the inner side surface of the outer side portion is joined to the inner side surface of the other side edge portion of the back side portion or the abdominal side portion. It is attached with the side part extended as a free part,
The said male material is the absorbent article which latches with the said female material in the said free part, and has joined the side edge part of the said back side part, and the side edge part of an abdominal side part.

前記オス材は前記背側部の側縁部に取り付けられ、前記メス材は前記腹側部の側縁部に取り付けられる請求項１記載の吸収性物品。 The absorbent article according to claim 1, wherein the male material is attached to a side edge portion of the back side portion, and the female material is attached to a side edge portion of the abdominal side portion.

ウェスト周り弾性部材及び胴回り弾性部材を有しており、該ウェスト周り弾性部材及び胴回り弾性部材は、前記オス材及び／または前記メス材の取り付け箇所において収縮機能が発現されないようになっている請求項１又は２に記載の吸収性物品。 A waist circumference elastic member and a waistline elastic member are provided, and the waist circumference elastic member and the waistline elastic member are configured such that a contraction function is not exhibited at an attachment position of the male material and / or the female material. The absorbent article according to 1 or 2.

請求項１記載の吸収性物品を製造するための製造方法であって、前記吸収性物品を構成するウェブを連続的に横流れで送り出す工程と、送り出される前記ウェブを流れ方向と平行な二つ折り線に沿って折り畳んだ後に個々の吸収性物品に切り離す工程とを含み、
前記ウェブを折り畳んで個々の吸収性物品に切り離す工程に先立って、前記ウェブの背側部、腹側部における切り離し予定線を挟んだ両側に、切り離して形成される各吸収性物品の両側縁部の内側面に配置して、前記オス材又はメス材の何れか一方及び他方を各々取り付ける工程を備え、
前記ウェブを二つ折りに折り畳んだ際に、前記オス材を前記メス材の自由部分に係止させ、前記切り離し予定線で前記ウェブを個々に切り離して、前記背側部の両側縁部と前記腹側部の両側縁部がメカニカルファスナーを介して各々接合された吸収性物品を製造する吸収性物品の製造方法。 A manufacturing method for manufacturing the absorbent article according to claim 1, wherein the web constituting the absorbent article is continuously fed in a transverse flow, and the web fed out is folded in parallel with the flow direction. Folds along and cuts into individual absorbent articles,
Prior to the step of folding the web and separating it into individual absorbent articles, both sides of each absorbent article formed separately on both sides of the web on the back side and the ventral side with the planned separation line in between. Arranged on the inner surface of each of the above, comprising the step of attaching either one of the male material or female material and the other,
When the web is folded in half, the male material is locked to the free portion of the female material, the web is individually separated by the planned separation line, and both side edges of the back side portion and the belly The manufacturing method of the absorbent article which manufactures the absorbent article in which the both-sides edge part of the side part was each joined via the mechanical fastener.

前記メス材は、前記切り離し予定線を挟んだ両側に跨って連続する一部材として取り付けられ、前記切り離し予定線で前記ウェブが切断される以前または切断されると同時に、各吸収性物品の前記背側部又は腹側部の両側縁部に各々取り付けられる請求項４記載の吸収性物品の製造方法。 The female material is attached as a continuous member across both sides of the planned separation line, and before or simultaneously with the cutting of the web along the planned separation line, the back of each absorbent article. The manufacturing method of the absorbent article of Claim 4 attached to the both-sides edge part of a side part or a stomach side part, respectively.

前記切り離し予定線を挟んだ両側に取り付けられる前記メス材の自由部分を仮着する工程を含む請求項４又は５に記載の吸収性物品の製造方法。
The manufacturing method of the absorbent article of Claim 4 or 5 including the process of temporarily attaching | attaching the free part of the said female material attached to the both sides on both sides of the said separation plan line.