JP2009056270A

JP2009056270A - Unitary package of absorptive article

Info

Publication number: JP2009056270A
Application number: JP2007228567A
Authority: JP
Inventors: Aya Ito; 綾伊藤; Shinsuke Nagahara; 進介長原
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2007-09-04
Filing date: 2007-09-04
Publication date: 2009-03-19
Anticipated expiration: 2027-09-04
Also published as: JP5053765B2

Abstract

PROBLEM TO BE SOLVED: To provide a unitary package of an absorbent article with leak-proof walls, where the leak-proof walls are surely functioned in usage and which is excellent in fitting property with respect to skin and property to prevent liquid leakage. SOLUTION: The unitary package 30 is the body for the absorbent article 1 where the leak-proof walls 5 are arranged on both sides in a longitudinal direction and which is packaged by folding along folding lines L1-L3 crossing with a width direction. The leak-proof walls 5 include: base wall parts 51 erected from outer parts in the width direction of absorbent layers 4; and planar skin abutment parts 52 successively connected to the upper end parts 54 of the base wall parts 51. Double layer parts 58A, 58B are arranged in partial areas of the leak-proof walls 5, which are folded inward in the width direction of the absorbent article 1 and formed by joining the folded and opposing surfaces. The double layer parts 58A, 58B are not joined with the skin abutment parts 52 and leak-proof layers 3. The folding lines L1-L3 are arranged across the formation areas of the double layer part 58A, 58B in the leak-proof walls 5 or parts close to the areas. COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、生理用ナプキンや失禁パッド等の吸収性物品の個装体に関する。 The present invention relates to an individual package of absorbent articles such as sanitary napkins and incontinence pads.

従来、生理用ナプキンや失禁パッド等の吸収性物品として、長手方向の両側部に防漏壁が配されているものが知られている。防漏壁は、吸収性物品を着用者にフィットする好ましい立体形状に変形させること、着用者の肌に対する密着性を向上させ、液漏れを確実に防止することなどを目的とするものである。 Conventionally, as an absorbent article such as a sanitary napkin or an incontinence pad, one having leak-proof walls arranged on both sides in the longitudinal direction is known. The purpose of the leak-proof wall is to deform the absorbent article into a preferable three-dimensional shape that fits the wearer, to improve the adhesion of the wearer to the skin, and to reliably prevent liquid leakage.

このような防漏壁を有する吸収性物品として、本出願人は先に、吸収層の幅方向外方から起立した基壁部と、該基壁部の上端部に連設された面状の弾性伸縮部とを備えた防漏壁を有し、後方部における基壁部の上端部から防漏層までの距離を、排泄部対向部における該距離よりも短くした吸収性物品を提案した（特許文献１参照）。特許文献１記載の吸収性物品における該距離の調整は、後方部の基壁部を構成する基壁部形成用シート部の一部に、該シート部の一部を折り重ねて接合することによって形成された重層部を設けることなどによりなされる。特許文献１記載の吸収性物品によれば、弾性伸縮部が着用者の肌に面状に当接するため、肌へのフィット性及び液漏れ防止性の点で満足する結果が得られる。 As an absorbent article having such a leakage-preventing wall, the present applicant firstly has a base wall portion standing upright from the outer side in the width direction of the absorbent layer and a planar shape continuously provided on the upper end portion of the base wall portion. Proposed an absorbent article having a leak-proof wall with an elastic expansion and contraction part, wherein the distance from the upper end of the base wall part in the rear part to the leak-proof layer is shorter than the distance in the excretory part facing part ( Patent Document 1). The adjustment of the distance in the absorbent article described in Patent Document 1 is performed by folding and joining a part of the sheet part to a part of the base wall part forming sheet part constituting the base wall part of the rear part. For example, by providing the formed multilayer portion. According to the absorbent article described in Patent Document 1, since the elastic stretchable part comes into contact with the wearer's skin in a plane, a satisfactory result is obtained in terms of fit to the skin and prevention of liquid leakage.

特開２００３−２４５３０６号公報JP 2003-245306 A

生理用ナプキンや失禁パッド等の吸収性物品は、通常、包装材と共に長手方向に適宜折り畳まれ、所定箇所が封止された個装体として流通される。従って、個装体とされた吸収性物品には、折り畳みによって形成された、吸収性物品の幅方向を横断する折り線が形成されている。
特許文献１記載の防漏壁を有する吸収性物品は、個装体とされたときに、折り線の前後に位置する防漏壁に望ましくない折りぐせがつきやすく、このため包装を解いて展開したときに、防漏壁に皴が発生したり、基壁部の起立が不充分になったりすることがあり、防漏壁による効果（肌へのフィット性及び液漏れ防止性の向上）が充分に得られないという問題があった。 Absorbent articles such as sanitary napkins and incontinence pads are usually distributed together with the packaging material in the longitudinal direction as appropriate and are distributed as individual packages in which predetermined portions are sealed. Therefore, the absorbent article made into an individual body is formed with a fold line that is formed by folding and crosses the width direction of the absorbent article.
The absorbent article having a leak-proof wall described in Patent Document 1 is likely to be undesirably folded on the leak-proof wall positioned before and after the fold line when it is made an individual package. When this occurs, the leak-proof wall may become wrinkled or the base wall may not stand up sufficiently, and the effect of the leak-proof wall (improved skin fit and leakage prevention) There was a problem that it could not be obtained sufficiently.

従って、本発明の目的は、防漏壁を有する吸収性物品の個装体において、使用時に防漏壁がしっかりと機能し、肌に対するフィット性及び液漏れ防止性に優れた吸収性物品の個装体を提供することにある。 Accordingly, an object of the present invention is to provide an individual article of an absorbent article having a leak-proof wall, wherein the leak-proof wall functions firmly at the time of use, and is excellent in fit to skin and liquid leakage prevention. To provide a body.

本発明者らは、基壁部と面状の肌当接部とを備えた防漏壁を有し、個装時に折り畳まれても使用時には該防漏壁が設計通りに起立して本来の作用効果を充分に発揮し得る吸収性物品の個装体について種々検討した結果、折り畳みによって該吸収性物品に形成される、該吸収性物品の幅方向を横断する折り線が、該基壁部の重層部又はその近傍を横断していることにより、折り畳みによる防漏壁への悪影響が最小限に抑えられ、良好なフィット性及び液漏れ防止性が得られることを知見した。 The present inventors have a leak-proof wall provided with a base wall portion and a planar skin contact portion, and even when folded at the time of individual packaging, the leak-proof wall stands up as designed at the time of use. As a result of various investigations on the individual package of the absorbent article that can sufficiently exhibit the action and effect, the fold line that crosses the width direction of the absorbent article formed on the absorbent article by folding is the base wall portion. It has been found that by crossing the multilayer portion or the vicinity thereof, the adverse effect on the leak-proof wall due to folding can be minimized, and good fit and liquid leakage prevention properties can be obtained.

本発明は、前記知見に基づきなされたものであり、肌に当接する表面層、防漏層、及びこれら両層間に介在された吸収層を備え、長手方向の両側部に防漏壁が配されている吸収性物品が、幅方向を横断する折り線に沿って折り畳まれて個装されている吸収性物品の個装体であって、前記防漏壁は、包装を解いて前記吸収性物品を展開したときに、前記吸収層の幅方向外方から起立する基壁部と、該基壁部の上端部に連接された面状の肌当接部とを備えており、前記防漏壁における一部の領域に、前記基壁部の一部が前記吸収性物品の幅方向内方又は外方に延出するように折り重ねられ且つ折り重ねられた対向面の間が接合されて形成された重層部が設けられており、該重層部は、前記肌当接部及び前記防漏層とは接合されておらず、前記折り線は、前記防漏壁における前記重層部の形成領域又はその近傍を横断している吸収性物品の個装体を提供することにより、前記目的を達成したものである。 The present invention has been made on the basis of the above knowledge, and includes a surface layer in contact with the skin, a leak-proof layer, and an absorption layer interposed between both layers, and a leak-proof wall is arranged on both sides in the longitudinal direction. The absorbent article is an individual package of the absorbent article that is folded and folded along a fold line that crosses the width direction, and the leakage prevention wall unwraps the absorbent article. A base wall portion that stands up from the outside in the width direction of the absorbent layer, and a planar skin contact portion that is connected to an upper end portion of the base wall portion, and the leak-proof wall Formed in such a manner that a part of the base wall portion is folded so as to extend inward or outward in the width direction of the absorbent article, and the folded opposing surfaces are joined to a part of the region. The multi-layered portion is provided, and the multi-layered portion is not joined to the skin contact portion and the leak-proof layer, and is not folded. By providing KoSokarada of an absorbent article traverses the forming region or the vicinity thereof of the multilayer portion in the leakage preventing wall is obtained by achieving the above object.

本発明の吸収性物品の個装体は、使用時に防漏壁がしっかりと機能し、肌に対するフィット性及び液漏れ防止性に優れる。 In the individual package of the absorbent article of the present invention, the leak-proof wall functions firmly during use, and is excellent in fit to the skin and liquid leakage prevention.

以下、本発明の吸収性物品の個装体を、その好ましい実施形態に基づき図面を参照して説明する。図１及び図２には、本発明の吸収性物品の個装体の一実施形態としての生理用ナプキンの個装体が示されている。 Hereinafter, an individual package of an absorbent article according to the present invention will be described based on preferred embodiments with reference to the drawings. 1 and 2 show an individual package of a sanitary napkin as an embodiment of the package of the absorbent article of the present invention.

本実施形態の生理用ナプキンの個装体３０は、図１に示すように、ナプキン１（図１では図示せず）が折り畳まれて包装材２０によって個装（個別包装）されてなる。ナプキン１には、図２に示すように、この折り畳みによって形成された３本の折り線Ｌ１〜Ｌ３が形成されている。即ち、個装体３０は、ナプキン１の幅方向を横断するこれらの折り線Ｌ１〜Ｌ３に沿って折り畳まれて個装されている。 As shown in FIG. 1, the sanitary napkin individual package 30 of the present embodiment is formed by individually folding (separately packaging) the napkin 1 (not shown in FIG. 1) by folding the napkin 1. As shown in FIG. 2, the napkin 1 is formed with three folding lines L1 to L3 formed by this folding. That is, the individual package 30 is folded and folded along these folding lines L1 to L3 that cross the width direction of the napkin 1.

本実施形態のナプキン１は、着用時に着用者の肌に当接する表面層としての液透過性の表面シート２、防漏層としての液不透過性又は撥水性の裏面シート３、及びこれら両層２，３間に介在された吸収層としての液保持性の吸収体４を備え、実質的に縦長の形状を有している。ナプキン１の長手方向の両側部それぞれには、該長手方向の全長に亘って（後述するナプキン１の前後端部Ｃ，Ｄ間に亘って）防漏壁５が配されている。 The napkin 1 of this embodiment includes a liquid-permeable surface sheet 2 as a surface layer that comes into contact with the wearer's skin when worn, a liquid-impermeable or water-repellent back sheet 3 as a leak-proof layer, and both layers. A liquid-retaining absorbent body 4 as an absorbent layer interposed between two and three is provided and has a substantially vertically long shape. On both side portions of the napkin 1 in the longitudinal direction, leakage prevention walls 5 are arranged over the entire length in the longitudinal direction (between front and rear end portions C and D of the napkin 1 described later).

ナプキン１は、着用時に着用者の排泄部位に対向配置される排泄部対向部Ａと、着用時に排泄部対向部Ａよりも着用者の背側（後方）に配される後方部Ｂと、ナプキン１の前端部及び後端部をそれぞれ形成する前端部Ｃ及び後端部Ｄとを、長手方向に有している。本実施形態における排泄部対向部Ａと後方部Ｂとの境界は、ナプキン１の長手方向の略中央部に存する。前端部Ｃと排泄部対向部Ａとの境界は、ナプキン１の長手方向前端１Ｃからナプキン１の長手方向の全長の略５〜１０％に相当する距離離間した位置に存する。後方部Ｂと後端部Ｄとの境界は、ナプキン１の長手方向後端１Ｄからナプキン１の長手方向の全長の略略５〜１０％に相当する距離離間した位置に存する。 The napkin 1 includes an excretory part facing part A disposed opposite to the excretion part of the wearer when worn, a rear part B disposed on the back side (rear) of the wearer from the excretion part facing part A when worn, and a napkin. 1 has a front end portion C and a rear end portion D, which respectively form a front end portion and a rear end portion, in the longitudinal direction. The boundary between the excretory part facing part A and the rear part B in the present embodiment exists in the substantially central part of the napkin 1 in the longitudinal direction. The boundary between the front end portion C and the excretory portion facing portion A is located at a position spaced from the longitudinal front end 1C of the napkin 1 by a distance corresponding to approximately 5 to 10% of the total length in the longitudinal direction of the napkin 1. The boundary between the rear portion B and the rear end portion D is located at a position spaced from the rear end 1D in the longitudinal direction of the napkin 1 by a distance corresponding to approximately 5 to 10% of the total length in the longitudinal direction of the napkin 1.

表面シート２は、吸収体４の上面（肌当接面側）の全域を被覆し、且つ吸収体４の長手方向両側縁を覆って裏面シート３側へ巻き込まれている。裏面シート３は、吸収体４の下面（非肌当接面側）を被覆し、更に吸収体４の長手方向両側縁から幅方向外方に延出しており、後方部Ｂにおいて一対のサイドフラップ６，６を形成している。また、裏面シート３は、排泄部対向部Ａの所定箇所において更に幅方向外方に延出して、一対のウイング部７，７を形成している。ウイング部７は、ナプキン１の着用時に下着のクロッチ部の外面側に折り返されて用いられる。表面シート２及び裏面シート３は、吸収体４の前後端から長手方向に延出し、その延出部分において互いにヒートシール等により接合されてエンドシール部１０，１０を形成している。 The top sheet 2 covers the entire upper surface (skin contact surface side) of the absorbent body 4 and covers both side edges in the longitudinal direction of the absorbent body 4 and is wound around the back sheet 3 side. The back sheet 3 covers the lower surface (non-skin contact surface side) of the absorbent body 4 and further extends outward in the width direction from both side edges in the longitudinal direction of the absorbent body 4, and a pair of side flaps at the rear part B 6 and 6 are formed. The back sheet 3 further extends outward in the width direction at a predetermined location of the excretory part facing part A to form a pair of wing parts 7. When the napkin 1 is worn, the wing part 7 is folded and used on the outer surface side of the crotch part of the underwear. The top sheet 2 and the back sheet 3 extend in the longitudinal direction from the front and rear ends of the absorber 4 and are joined to each other by heat sealing or the like at the extended portions to form end seal portions 10 and 10.

尚、「肌当接面側」は、ナプキン着用時に着用者の肌側に向けられる面であり、「非肌当接面側」は、ナプキン着用時に下着側（着用者の肌側とは反対側）に向けられる面である。また、「長手方向」は、ナプキン又は各種部材の長手方向に沿う方向であり、「幅方向」は、長手方向と直交する方向である。 The “skin contact surface side” is the surface facing the wearer's skin when wearing the napkin, and the “non-skin contact surface” is the underwear side (opposite to the wearer's skin side). Side). The “longitudinal direction” is a direction along the longitudinal direction of the napkin or various members, and the “width direction” is a direction orthogonal to the longitudinal direction.

吸収体４は、図３（ａ）に示すように、上層吸収体４１及び下層吸収体４２からなる２層構造を有している。上層吸収体４１は、下層吸収体４２と同様に縦長で、下層吸収体４２よりも長さが短く、幅が狭くなっている。上層吸収体４１は、下層吸収体４２の幅方向中央部で且つナプキン１の着用時に着用者の排泄部位を跨ぐように配置されており、上層吸収体４１の長手方向と下層吸収体４２の長手方向とは一致している。上層吸収体４１と下層吸収体４２との間は接合されていない。上層吸収体４１の斯かる構成・配置により、ナプキン１の肌当接面側における上層吸収体４１が配置されている領域は、他の領域に比して嵩高の中高部となる。この中高部が、ナプキン１の着用時において、着用者の排泄部位を跨ぐように装着者の股間部にフィットすることで、ナプキン１のフィット性及び液漏れ防止性が一層高められる。 As shown in FIG. 3A, the absorber 4 has a two-layer structure including an upper layer absorber 41 and a lower layer absorber 42. The upper-layer absorber 41 is vertically long like the lower-layer absorber 42, and is shorter and narrower than the lower-layer absorber 42. The upper layer absorbent body 41 is arranged at the center in the width direction of the lower layer absorbent body 42 so as to straddle the excretion site of the wearer when the napkin 1 is worn, and the longitudinal direction of the upper layer absorbent body 41 and the longitudinal direction of the lower layer absorbent body 42. The direction is the same. The upper absorber 41 and the lower absorber 42 are not joined. Due to such a configuration / arrangement of the upper layer absorbent body 41, the region where the upper layer absorbent body 41 is disposed on the skin contact surface side of the napkin 1 becomes a bulky middle-high portion compared to other regions. By fitting the mid-high portion to the crotch portion of the wearer so as to straddle the excretion site of the wearer when the napkin 1 is worn, the fit property and the liquid leakage prevention property of the napkin 1 are further enhanced.

裏面シート３の非肌当接面側の所定箇所には本体粘着部（図示せず）が、ウイング部６の非肌当接面側にはウイング部粘着部（図示せず）が、それぞれ設けられている。本体粘着部及びウイング部粘着部は、何れもナプキン１を下着に固定するための固定手段であり、包装材２０は、これらの粘着部を介してナプキン１の非肌当接面側に剥離可能に粘着されている。本体粘着部及びウイング部粘着部は、何れもホットメルト粘着剤を所定箇所に塗布することにより設けられている。包装材２０は、個装体３０の外面を形成するものであり、ナプキン１よりも長さが長く、幅が広く、矩形形状を有している。包装材２の幅方向に沿う一方の端縁（ナプキン１の前端１Ｃ寄りの端縁）には、感圧接着式の公知のタブテープ２１が設けられている。 A main body adhesive portion (not shown) is provided at a predetermined position on the non-skin contact surface side of the back sheet 3, and a wing portion adhesive portion (not shown) is provided on the non-skin contact surface side of the wing portion 6. It has been. Both the main body adhesive portion and the wing portion adhesive portion are fixing means for fixing the napkin 1 to the underwear, and the packaging material 20 can be peeled to the non-skin contact surface side of the napkin 1 via these adhesive portions. It is sticked to. Both the main body adhesive portion and the wing portion adhesive portion are provided by applying a hot melt adhesive to a predetermined location. The packaging material 20 forms the outer surface of the individual package 30, and is longer than the napkin 1, wider, and has a rectangular shape. A known pressure-sensitive adhesive tab tape 21 is provided on one edge along the width direction of the packaging material 2 (an edge near the front end 1C of the napkin 1).

防漏壁５は、包装を解いてナプキン１を展開したときに、図４に示すように、吸収体４の幅方向外方から起立する基壁部５１と、該基壁部５１の上端部５４に、該上端部５４の長手方向の全長に亘って連接された面状の肌当接部５２とを備えている。 As shown in FIG. 4, the leak-proof wall 5, when unwrapped and unfolds the napkin 1, has a base wall portion 51 that stands up from the outer side in the width direction of the absorber 4 and an upper end portion of the base wall portion 51. 54 is provided with a planar skin contact portion 52 connected over the entire length of the upper end portion 54 in the longitudinal direction.

防漏壁５について更に説明すると、防漏壁５は、防漏壁形成用シート５３を主体として構成されている。防漏壁形成用シート５３は、長手方向に亘って一定の幅を有するシートで、基壁部５１及びその上端部５４に肌当接部５２が連設された形状を有するように折り返されている。従って、防漏壁形成用シート５３を折り返して形成された防漏壁５は、図３（ａ）に示すように、基壁部５１及び肌当接部５２において２層構造となっている。基壁部５１の下端部５５は、吸収体４の非肌当接面側に巻き込まれている。吸収体４の非肌当接面側に巻き込まれた下端部５５は、吸収体４の非肌当接面側に巻き込まれた表面シート２の非肌当接面側と、裏面シート３の肌当接面側との間に、接着剤等の公知の接合手段により固定されている。 The leak-proof wall 5 will be further described. The leak-proof wall 5 is mainly composed of a leak-proof wall forming sheet 53. The leakage preventing wall forming sheet 53 is a sheet having a constant width in the longitudinal direction, and is folded back so as to have a shape in which the skin contact portion 52 is continuously provided on the base wall portion 51 and the upper end portion 54 thereof. Yes. Therefore, the leak-proof wall 5 formed by folding the leak-proof wall forming sheet 53 has a two-layer structure in the base wall portion 51 and the skin contact portion 52 as shown in FIG. A lower end portion 55 of the base wall portion 51 is wound around the non-skin contact surface side of the absorbent body 4. The lower end portion 55 that is wound on the non-skin contact surface side of the absorbent body 4 includes the non-skin contact surface side of the top sheet 2 that is wound on the non-skin contact surface side of the absorbent body 4 and the skin of the back sheet 3. Between the contact surface side, it is fixed by a known joining means such as an adhesive.

肌当接部５２は、基壁部５１の上端部５４からナプキン１の幅方向内方に張り出す内方肌当接部５２Ａと、基壁部５１の上端部５４から生理用ナプキン１の幅方向外方に張り出す外方肌当接部５２Ｂとから構成されており、少なくとも排泄部対向部Ａにおいて着用者の肌に面状に当接するようになっている。
本実施形態においては、図３（ａ）に示すように、内方肌当接部５２Ａ及び外方肌当接部５２Ｂは共に、略水平に張り出している。即ち、内方肌当接部５２Ａ及び外方肌当接部５２Ｂは、両者が一体となって平面状に形成され、肌当接部５２と基壁部５１とは、図３（ａ）に示す如き防漏壁５の幅方向（ナプキン１の幅方向）の断面視において、Ｔ字状を形成している。 The skin contact portion 52 includes an inner skin contact portion 52A that protrudes inward in the width direction of the napkin 1 from the upper end portion 54 of the base wall portion 51, and a width of the sanitary napkin 1 from the upper end portion 54 of the base wall portion 51. It is comprised from the outward skin contact part 52B which protrudes in the direction outward, and comes into contact with the wearer's skin at least in the excretion part facing part A at least.
In the present embodiment, as shown in FIG. 3A, both the inner skin contact portion 52A and the outer skin contact portion 52B project substantially horizontally. That is, the inner skin contact portion 52A and the outer skin contact portion 52B are integrally formed in a planar shape, and the skin contact portion 52 and the base wall portion 51 are shown in FIG. A T-shape is formed in a cross-sectional view of the leak-proof wall 5 as shown in the width direction (width direction of the napkin 1).

内方肌当接部５２Ａ及び外方肌当接部５２Ｂそれぞれには、防漏壁５の長手方向に亘って肌当接部弾性部材９２が１本又は複数本配されている（図３（ａ）及び図４においてはそれぞれ１本のみ図示）。以下、内方肌当接部５２Ａに配された肌当接部弾性部材９２を内方弾性部材９２Ａ、外方肌当接部５２Ｂに配された肌当接部弾性部材９２を外方弾性部材９２Ｂという。内方弾性部材９２Ａ及び外方弾性部材９２Ｂがそれぞれ複数本ある場合、複数本の弾性部材９２Ａ，９２Ｂは、それぞれ肌当接部５２の幅方向に所定間隔を置いて配される。 Each of the inner skin contact portion 52A and the outer skin contact portion 52B is provided with one or a plurality of skin contact portion elastic members 92 along the longitudinal direction of the leak-proof wall 5 (FIG. 3 ( a) and FIG. 4 each show only one). Hereinafter, the skin contact portion elastic member 92 disposed on the inner skin contact portion 52A is the inner elastic member 92A, and the skin contact portion elastic member 92 disposed on the outer skin contact portion 52B is the outer elastic member. It is called 92B. When there are a plurality of inner elastic members 92 A and outer elastic members 92 B, the plurality of elastic members 92 A and 92 B are arranged at predetermined intervals in the width direction of the skin contact portion 52.

内方弾性部材９２Ａ及び外方弾性部材９２Ｂは、それぞれ内方肌当接部５２Ａ及び外方肌当接部５２Ｂを構成する２層の防漏壁形成用シート５３，５３の間に伸長状態で配されており、接着剤等の公知の手段によって該２層の防漏壁形成用シート５３，５３と接合されている。
内方肌当接部５２Ａ及び外方肌当接部５２Ｂに内方弾性部材９２Ａ及び外方弾性部材９２Ｂが配されることによって、肌当接部５２に弾性伸縮性が付与され伸縮領域が形成されている。伸縮領域とは、実質的に伸縮性が発現する領域をいい、肌当接部弾性部材９２が存在する領域であっても、例えば、ヒートシール等が施されて剛性が高くなることによって、実質的に伸縮性が発現しなくなっている領域は含まない。 The inner elastic member 92A and the outer elastic member 92B are stretched between the two layers of leak-proof wall forming sheets 53 and 53 constituting the inner skin contact portion 52A and the outer skin contact portion 52B, respectively. It is arranged and joined to the two layers of the leak-proof wall forming sheets 53 and 53 by a known means such as an adhesive.
By disposing the inner elastic member 92A and the outer elastic member 92B on the inner skin contact portion 52A and the outer skin contact portion 52B, the elastic contact property is imparted to the skin contact portion 52 to form an elastic region. Has been. The stretchable region refers to a region in which stretchability is substantially exhibited, and even if the skin contact portion elastic member 92 is present, for example, by applying heat seal or the like to increase the rigidity, In other words, the region in which stretchability is no longer expressed is not included.

肌当接部弾性部材９２は、少なくとも排泄部対向部Ａに配されており、更に前端部Ｃ及び／又は後方部Ｂ、後端部Ｄ側にも延びて配されていることが好ましい。
内方弾性部材９２Ａの本数は、好ましくは１〜５本、更に好ましくは１〜３本であり、外方弾性部材９２Ｂの本数は、好ましくは１〜５本、更に好ましくは１〜３本である。 It is preferable that the skin contact portion elastic member 92 is disposed at least in the excretion portion facing portion A and further extends to the front end portion C and / or the rear portion B and the rear end portion D side.
The number of inner elastic members 92A is preferably 1 to 5, more preferably 1 to 3, and the number of outer elastic members 92B is preferably 1 to 5, and more preferably 1 to 3. is there.

本実施形態においては、内方肌当接部５２Ａ及び外方肌当接部５２Ｂの張り出し幅は異なっている。内方肌当接部５２Ａの張り出し幅と外方肌当接部５２Ｂの張り出し幅との比（前者：後者）は、好ましくは１：５〜５：１であり、特に、肌当接部５２のナプキン１の内方への張り出しによる液吸収面の面積縮小を防止し、該液吸収面を幅方向に広くできる点から、更に好ましくは１：１〜１：４である。
また、内方肌当接部５２Ａの長手方向に沿った自由端から外方肌当接部５２Ｂの長手方向に沿った自由端までの長さ、即ち、肌当接部５２の幅は、フィット性及び防漏壁を汚しにくくする点から、１０〜５０ｍｍが好ましい。 In the present embodiment, the protruding widths of the inner skin contact portion 52A and the outer skin contact portion 52B are different. The ratio of the overhang width of the inner skin contact portion 52A to the overhang width of the outer skin contact portion 52B (the former: the latter) is preferably 1: 5 to 5: 1. It is more preferably 1: 1 to 1: 4 from the viewpoint of preventing the area of the liquid absorbing surface from being reduced due to the inward extension of the napkin 1 and making the liquid absorbing surface wide in the width direction.
The length from the free end along the longitudinal direction of the inner skin contact portion 52A to the free end along the longitudinal direction of the outer skin contact portion 52B, that is, the width of the skin contact portion 52 is fit. 10-50 mm is preferable from the point which makes a property and a leak-proof wall hard to get dirty.

また、本実施形態においては、基壁部５１における上端部５４近傍に、防漏壁５の長手方向に亘って基壁部弾性部材９１が配されている。基壁部弾性部材９１は、基壁部５１の上端部５４近傍において、２層の防漏壁形成用シート５３，５３の間に伸長状態で配されており、接着剤等の公知の手段によって該２層の防漏壁形成用シート５３，５３と接合されている。基壁部弾性部材９１と接合された２層の防漏壁形成用シート５３，５３は、基壁部弾性部材９１の収縮力によって収縮し、図４に示すように、基壁部５１には、上端部５４と基壁部弾性部材９１との間に多数の襞８が形成される。基壁部弾性部材９１は、少なくとも排泄部対向部Ａに配されており、更に前端部Ｃ及び／又は後方部Ｂ、後端部Ｄ側にも延びて配されていることが好ましい。このように、基壁部５１における上端部５４の近傍（肌当接部５２の近傍）に基壁部弾性部材９１が配されていることにより、ナプキン１の使用時において、肌当接部５２の面形状を平面として一層安定的に保持させることが可能となる。 In the present embodiment, a base wall elastic member 91 is disposed in the vicinity of the upper end portion 54 of the base wall 51 along the longitudinal direction of the leak-proof wall 5. The base wall elastic member 91 is arranged in an extended state between the two layers of the leak-proof wall forming sheets 53 and 53 in the vicinity of the upper end portion 54 of the base wall 51, by a known means such as an adhesive. The two-layer leakage prevention wall forming sheets 53 and 53 are joined. The two layers of leak-proof wall forming sheets 53 and 53 joined to the base wall elastic member 91 are contracted by the contracting force of the base wall elastic member 91, and as shown in FIG. A large number of ridges 8 are formed between the upper end portion 54 and the base wall elastic member 91. It is preferable that the base wall elastic member 91 is disposed at least in the excretory part facing part A and further extends to the front end part C and / or the rear part B and the rear end part D side. As described above, the base wall portion elastic member 91 is disposed in the vicinity of the upper end portion 54 of the base wall portion 51 (in the vicinity of the skin contact portion 52), so that the skin contact portion 52 is used when the napkin 1 is used. It is possible to more stably hold the surface shape as a flat surface.

基壁部５１における上端部５４と基壁部弾性部材９１との間隔Ｔ１は、襞８を多数形成して肌当接部５２の面形状の更なる安定を図る観点から、好ましくは１〜１０ｍｍ、更に好ましくは１〜５ｍｍである。間隔Ｔ１が１０ｍｍを超えてしまうと、基壁部弾性部材９１と吸収体４との間の距離が短くなって、小さな襞が形成されにくくなり、基壁部弾性部材９１を設ける意義（肌当接部５２の面形状の更なる安定）が薄れてしまうおそれがある。多数の襞８それぞれの大きさは、同一でなくてもよく、また襞８は、少なくとも排泄部対向部Ａの全域に亘って連続して形成されていることが好ましい。 The distance T1 between the upper end portion 54 and the base wall elastic member 91 in the base wall 51 is preferably 1 to 10 mm from the viewpoint of forming a large number of ridges 8 and further stabilizing the surface shape of the skin contact portion 52. More preferably, it is 1-5 mm. If the interval T1 exceeds 10 mm, the distance between the base wall elastic member 91 and the absorber 4 becomes short, and it becomes difficult to form small wrinkles, and the significance of providing the base wall elastic member 91 (skin contact) There is a risk that the further stability of the surface shape of the contact portion 52 will be thinned. The size of each of the large number of ridges 8 may not be the same, and the ridges 8 are preferably formed continuously over the entire area of the excretory part facing part A.

ナプキン１の長手方向の全長に亘って配されている防漏壁５における一部の領域には、図３（ｃ）及び図３（ｄ）に示すように、基壁部５１の一部がナプキン１の幅方向内方に延出するように折り重ねられ且つ折り重ねられた対向面の間が接合されて形成された重層部５８Ａ，５８Ｂが設けられている。重層部５８Ａ，５８Ｂは、肌当接部５２及び裏面シート３とは接合されておらず、防漏壁５の起立状態においては、肌当接部５２及び裏面シート３それぞれから離間した位置に存する。右側部の防漏壁５における重層部５８Ａ，５８Ｂの形成領域と、左側部の防漏壁５における重層部５８Ａ，５８Ｂの形成領域とは、ナプキン１の幅方向中央を通る仮想直線（図示せず）を挟んで左右対称位置にある。 As shown in FIGS. 3 (c) and 3 (d), a part of the base wall 51 is formed in a part of the leak-proof wall 5 arranged over the entire length of the napkin 1 in the longitudinal direction. Multilayer portions 58A and 58B are provided which are folded so as to extend inward in the width direction of the napkin 1 and are formed by joining the folded opposing surfaces. The multi-layer portions 58A and 58B are not joined to the skin contact portion 52 and the back sheet 3, and exist in positions separated from the skin contact portion 52 and the back sheet 3 in the standing state of the leak-proof wall 5, respectively. . The formation area of the multilayer portions 58A and 58B in the right leakage prevention wall 5 and the formation area of the multilayer portions 58A and 58B in the leakage prevention wall 5 on the right side are virtual straight lines (not shown) passing through the center in the width direction of the napkin 1. Z)).

本実施形態においては、防漏壁５における重層部５８Ａ，５８Ｂの形成領域が複数存在している。
具体的には、排泄部対向部Ａにおける前端部Ｃ寄りの領域Ａ１においては、図３（ｃ）に示すように、基壁部５１において、防漏壁形成用シート５３の一部が、ナプキン１の幅方向内方に延出するように山折りに折り重ねられ、且つ折り重ねられた対向面の間が接着剤、ヒートシール等の接合手段により接合されて折り重ね形態が維持されることにより、重層部５８Ａが形成されている。重層部５８Ａは、領域Ａ１の長手方向の全長に亘って、基壁部５１における肌当接部５２及び防漏層３それぞれから離間した位置に形成されており、且つ吸収体４の肌当接面側にて接着剤、ヒートシール等の接合手段により表面シート２に接合固定されている。
また、排泄部対向部Ａにおける後方部Ｂ寄りの領域Ａ２及び後方部Ｂの全領域においては、これらの領域の長手方向の全長に亘って、図３（ｄ）に示すように、重層部５８Ｂが形成されている。重層部５８Ｂは、表面シート２に接合されていない点以外は重層部５８Ａと同様に形成されている。
このように、本実施形態に係る重層部には、重層部がナプキン１の他の構成部材に接合されていない形態（重層部５８Ａ）、及び重層部が吸収体の肌当接面側（上方）にて他の構成部材（表面層）に接合されている形態（重層部５８Ｂ）の２種類の形態が含まれる。 In the present embodiment, there are a plurality of formation regions of the multilayer portions 58A and 58B in the leak-proof wall 5.
Specifically, in the region A1 near the front end C in the excretion part facing part A, as shown in FIG. 1 is folded in a mountain fold so as to extend inward in the width direction, and the folded opposing surfaces are joined by a joining means such as an adhesive or heat seal to maintain the folded form. Thus, the multi-layer part 58A is formed. The multilayer portion 58A is formed at a position spaced apart from the skin contact portion 52 and the leak-proof layer 3 in the base wall portion 51 over the entire length in the longitudinal direction of the region A1, and the skin contact of the absorber 4 On the surface side, it is bonded and fixed to the surface sheet 2 by bonding means such as an adhesive or heat seal.
Further, in the entire area of the region A2 near the rear part B and the rear part B in the excretory part facing part A, as shown in FIG. 3 (d), the multilayer part 58B extends over the entire length in the longitudinal direction of these areas. Is formed. The multilayer portion 58B is formed in the same manner as the multilayer portion 58A except that the multilayer portion 58B is not joined to the topsheet 2.
Thus, in the multilayer portion according to the present embodiment, the multilayer layer portion is not joined to other components of the napkin 1 (multilayer portion 58A), and the multilayer portion is on the skin contact surface side of the absorbent body (above ) Includes two types of forms (layered portion 58B) joined to other constituent members (surface layer).

一方、排泄部対向部Ａにおける前記Ａ１及びＡ２以外の領域Ａ３（ウイング部７形成箇所に対応する領域）には、図３（ａ）及び図４に示すように、重層部５８Ａ，５８Ｂは設けられていない。領域Ａ３は、着用者の排泄部位に対応する領域である。
このように、本実施形態においては、着用者の排泄部位に対応する領域Ａ３に配されている防漏壁５には重層部５８Ａ，５８Ｂは設けられておらず、該領域Ａ３は重層部の非形成領域とされており、防漏壁５における複数の重層部５８Ａ，５８Ｂの形成領域（Ａ１、Ａ２及び後方部Ｂ）は、該重層部の非形成領域Ａ３を前後から挟むように配されている。 On the other hand, in the region A3 (region corresponding to the wing portion 7 formation position) other than the A1 and A2 in the excretory portion facing portion A, as shown in FIGS. It is not done. Region A3 is a region corresponding to the excretion site of the wearer.
Thus, in the present embodiment, the leakage barrier 5 disposed in the region A3 corresponding to the wearer's excretion site is not provided with the multilayer portions 58A and 58B, and the region A3 is not the multilayer portion. The formation regions (A1, A2 and rear portion B) of the plurality of multilayer portions 58A, 58B in the leak-proof wall 5 are arranged so as to sandwich the non-formation region A3 of the multilayer portion from the front and the rear. ing.

尚、本発明に係る重層部は、上述したように肌当接部５２及び裏面シート３とは接合されないものであり、本発明に係る重層部には、１）基壁部５１が折り重ねられ且つ接合されてなる重層部が、肌当接部５２に接合している場合（図３（ｅ）参照）の該重層部は含まれず、また、２）基壁部５１が折り重ねられ且つ接合されてなる重層部が、裏面シート３に接合している場合（図示せず）の該重層部も含まれない。
防漏壁５の起立時における肌当接部５２と重層部５８Ａ（５８Ｂ）との間隔（基壁部５１における上端部５４と重層部５８Ａ（５８Ｂ）との間隔）Ｔ２は、好ましくは２〜１５ｍｍ、更に好ましくは３〜８ｍｍであり、防漏壁５の起立時における裏面シート３と重層部５８Ａ（５８Ｂ）との間隔（基壁部５１における下端部５５と重層部５８Ａ（５８Ｂ）との間隔）Ｔ３は、好ましくは５〜１５ｍｍ、更に好ましくは８〜１２ｍｍである。 In addition, the multilayer part which concerns on this invention is not joined with the skin contact part 52 and the back surface sheet 3 as mentioned above, and 1) the base wall part 51 is folded over the multilayer part which concerns on this invention. In addition, when the multi-layer part joined is joined to the skin contact part 52 (see FIG. 3E), the multi-layer part is not included, and 2) the base wall part 51 is folded and joined. The multilayer portion formed when the multilayer portion thus formed is bonded to the back sheet 3 (not shown) is not included.
The interval between the skin contact portion 52 and the multilayer portion 58A (58B) at the time of standing of the leak-proof wall 5 (interval between the upper end portion 54 and the multilayer portion 58A (58B) in the base wall portion 51) T2 is preferably 2 to 2. 15 mm, more preferably 3 to 8 mm, and the distance between the back sheet 3 and the multilayer portion 58A (58B) when the leak-proof wall 5 stands (the lower end 55 and the multilayer portion 58A (58B) of the base wall portion 51). (Spacing) T3 is preferably 5 to 15 mm, more preferably 8 to 12 mm.

防漏壁５における重層部５８Ａ，５８Ｂの形成領域（排泄部対向部Ａにおける領域Ａ１及びＡ２、並びに後方部Ｂ）は、該防漏壁５における重層部５８Ａ，５８Ｂの非形成領域（排泄部対向部Ａにおける領域Ａ３）に比して、防漏壁５の起立時における基壁部５１の上端部５４から裏面シート３までの厚み方向距離が短くなっている。このように、防漏壁５における一部の領域に重層部５８Ａ，５８Ｂを設けて、該領域における防漏壁５の起立時の高さを抑制することにより、ナプキン１のフィット性（特に着用者の排泄部位の前後に対するフィット性）が良好となり、ナプキン１と身体とが無理なくフィットし、違和感が低減される。 The formation regions of the multilayer portions 58A and 58B in the leak-proof wall 5 (regions A1 and A2 in the excretion portion facing portion A and the rear portion B) are non-formation regions (excretion portions) of the multilayer portions 58A and 58B in the leak-proof wall 5. Compared with the region A3) in the facing portion A, the distance in the thickness direction from the upper end portion 54 of the base wall portion 51 to the back sheet 3 when the leak-proof wall 5 stands is shorter. Thus, by providing the multilayer portions 58A and 58B in a part of the area of the leak-proof wall 5 and suppressing the height of the leak-proof wall 5 in the area at the time of standing, the fit property (especially wearing) of the napkin 1 Fitability with respect to the front and back of the person's excretion site), the napkin 1 and the body fit comfortably, and the uncomfortable feeling is reduced.

本実施形態においては、重層部５８Ａ，５８Ｂは基壁部弾性部材９１を含んで形成されていない。重層部５８Ａ，５８Ｂが、何れも基壁部弾性部材９１を含んで形成されておらず、基壁部弾性部材９１が重層部５８Ａ，５８Ｂによって固定されていないことによって、重層部５８Ａ，５８Ｂの形成領域における肌当接部５２の平面形状がより安定する。この平面形状の安定効果は、重層部５８と基壁部５１の上端部５４との間に弾性部材が少なくとも１本存在することで達成できる。 In the present embodiment, the multilayer portions 58 A and 58 B are not formed including the base wall elastic member 91. None of the multilayer portions 58A and 58B includes the base wall elastic member 91, and the base wall elastic member 91 is not fixed by the multilayer portions 58A and 58B. The planar shape of the skin contact portion 52 in the formation region is more stable. This planar shape stabilization effect can be achieved by the presence of at least one elastic member between the multilayer portion 58 and the upper end portion 54 of the base wall portion 51.

防漏壁５における重層部５８Ａ，５８Ｂの形成領域（排泄部対向部Ａにおける領域Ａ１及びＡ２、並びに後方部Ｂ）の長手方向の長さ（各領域の長手方向の長さの合計）は、起立している防漏壁５の長手方向の長さの全長に対して、好ましくは４０〜８０％であり、更に好ましくは５０〜７０％である。
また、重層部５８Ａ，５８Ｂの非形成領域Ａ３よりもナプキン１の長手方向前端１Ｃ側に位置する、重層部の形成領域（Ａ１）の長手方向の長さは、起立している防漏壁５の長手方向の長さの全長に対して、好ましくは５〜３０％であり、更に好ましくは１０〜２０％である。
また、重層部５８Ａ，５８Ｂの非形成領域Ａ３よりもナプキン１の長手方向後端１Ｄ側に位置する、重層部の形成領域（Ａ２及び後方部Ｂ）の長手方向の長さは、起立している防漏壁５の長手方向の長さの全長に対して、好ましくは２０〜７０％であり、更に好ましくは３０〜６０％である。 The length in the longitudinal direction (the sum of the lengths in the longitudinal direction of the respective regions) of the formation regions (the regions A1 and A2 in the excretion portion facing portion A and the rear portion B) of the multilayer portions 58A and 58B in the leak-proof wall 5 is It is preferably 40 to 80%, more preferably 50 to 70%, based on the total length of the leakage prevention wall 5 in the longitudinal direction.
Further, the length in the longitudinal direction of the formation part (A1) of the multilayer part located on the longitudinal front end 1C side of the napkin 1 with respect to the non-formation area A3 of the multilayer part 58A, 58B is the standing leakage barrier 5 The total length in the longitudinal direction is preferably 5 to 30%, more preferably 10 to 20%.
Further, the length in the longitudinal direction of the formation area (A2 and the rear part B) of the multilayer part, which is located on the side of the rear end 1D in the longitudinal direction of the napkin 1 with respect to the non-formation area A3 of the multilayer part 58A, 58B, stands upright. Preferably, it is 20 to 70%, more preferably 30 to 60% with respect to the entire length of the leakage prevention wall 5 in the longitudinal direction.

肌当接部５２は、前端部Ｃにおいて、そのナプキン１の長手方向前端１Ｃの近傍部分が、前端１Ｃ側のエンドシール部１０により、表面シート２又は裏面シート３の肌当接面側に接合されており、また、その内側部側が、表面シート２の肌当接面側に接合されている（図３（ｅ）参照）。
同様に、肌当接部５２は、後端部Ｄにおいて、そのナプキン１の長手方向後端１Ｄの近傍部分が、後端１Ｄ側のエンドシール部１０により、表面シート２又は裏面シート３の肌当接面側に接合されており、また、その内側部側が、表面シート２の肌当接面側に接合されている。 The skin contact portion 52 is joined to the skin contact surface side of the top sheet 2 or the back sheet 3 at the front end portion C, in the vicinity of the front end 1C in the longitudinal direction of the napkin 1, by the end seal portion 10 on the front end 1C side. Moreover, the inner side is joined to the skin contact surface side of the topsheet 2 (see FIG. 3 (e)).
Similarly, the skin contact portion 52 has a skin portion of the top sheet 2 or the back sheet 3 at the rear end portion D in the vicinity of the rear end 1D in the longitudinal direction of the napkin 1 by the end seal portion 10 on the rear end 1D side. It is joined to the contact surface side, and its inner side is joined to the skin contact surface side of the topsheet 2.

防漏壁５は、包装を解いてナプキン１を展開したときに、排泄部対向部Ａ及び後方部Ｂにおいては、肌当接部弾性部材９２による収縮力によって起立する。一方、防漏壁５は、前端部Ｃ及び後端部Ｄにおいては、少なくとも肌当接部５２の幅方向内側（内方肌当接部５２Ａ）が、表面シート２又は裏面シート３に接合されていることによって、起立が阻害されており、起立しない。そのため、肌当接部５２の収縮によって、ナプキン１は、その長手方向の全体形状が、図５に示すように、凹状に湾曲する。 When the napkin 1 is unfolded after unwrapping, the leak-proof wall 5 rises due to the contraction force by the skin contact portion elastic member 92 at the excretory portion facing portion A and the rear portion B. On the other hand, at the front end portion C and the rear end portion D, at least the inner side in the width direction of the skin contact portion 52 (inner skin contact portion 52A) is bonded to the top sheet 2 or the back sheet 3 in the leak-proof wall 5. Therefore, standing is inhibited and does not stand. Therefore, by the contraction of the skin contact portion 52, the overall shape of the napkin 1 in the longitudinal direction is curved in a concave shape as shown in FIG.

上述の如き構成の防漏壁５が配されているナプキン１には、図２に示すように、個装時の折り畳みによって形成された、ナプキン１の幅方向を横断する３本の折り線Ｌ１〜Ｌ３が形成されている。そして、これらの折り線Ｌ１〜Ｌ３は、防漏壁５における重層部５８Ａ，５８Ｂの形成領域（Ａ１、Ａ２及び後方部Ｂ）又はその近傍を横断している。
具体的には、折り線Ｌ１及びＬ２は、何れも重層部５８Ｂの形成領域の一つである後方部Ｂを横断しており、折り線Ｌ３は、重層部５８Ａの形成領域である排泄部対向部Ａ中の領域Ａ１の近傍を横断している。ここで、防漏壁における重層部の形成領域の近傍とは、該形成領域に隣接する、該重層部が設けられていない該防漏壁中の領域であり、該形成領域との境界と、該境界から５ｍｍ離間した位置との間に亘る領域である。 As shown in FIG. 2, the napkin 1 in which the leak-proof wall 5 having the above-described configuration is arranged has three fold lines L 1 that are formed by folding during individual packaging and that cross the width direction of the napkin 1. -L3 is formed. And these fold lines L1-L3 cross | intersect the formation area (A1, A2 and back part B) of multilayer part 58A, 58B in the leak-proof wall 5, or its vicinity.
Specifically, the fold lines L1 and L2 both cross the rear part B, which is one of the formation regions of the multilayer portion 58B, and the fold line L3 is opposite to the excretion portion, which is the formation region of the multilayer portion 58A. It crosses the vicinity of the area A1 in the part A. Here, the vicinity of the formation region of the multilayer portion in the leak-proof wall is a region in the leak-proof wall adjacent to the formation region where the multilayer portion is not provided, and a boundary with the formation region, This is an area extending between the boundary and a position 5 mm away from the boundary.

このように、ナプキン１の折り畳みに利用される折り線Ｌ１〜Ｌ３が、重層部５８Ａ，５８Ｂの形成領域又はその近傍を横断していることにより、ナプキン１を折り線Ｌ１〜Ｌ３で折り曲げたときに、防漏壁５に皴が発生したり、折り線Ｌ１〜Ｌ３の前後に位置する防漏壁５の部分に望ましくない折りぐせがついたりするなどといった、防漏壁５の乱れが防止され、ナプキン１の使用時に防漏壁５を設計通りに起立させ、防漏壁５による効果（肌へのフィット性及び液漏れ防止性の向上）が充分に得られるようになる。
仮に、ナプキン１の折り畳みに利用される折り線が、防漏壁５における重層部の非形成領域Ａ３を横断している場合、個装時のナプキン１の折り畳みにより、該領域Ａ３における防漏壁５に乱れが生じやすくなるため、ナプキン１の使用時に防漏壁５が充分に起立しない、防漏壁５の起立方向に乱れが生じる、防漏壁５に皴がはいるなどの不都合が生じるおそれが高まり、防漏壁５により奏されるべき効果が充分に奏されないことになる。 Thus, when the fold lines L1 to L3 used for folding the napkin 1 cross the formation region of the multilayer portions 58A and 58B or the vicinity thereof, the napkin 1 is folded at the fold lines L1 to L3. In addition, the leakage prevention wall 5 is prevented from being disturbed, such as wrinkles occurring on the leakage prevention wall 5 and undesirable folding on the leakage prevention wall 5 portions located before and after the folding lines L1 to L3. When the napkin 1 is used, the leak-proof wall 5 is erected as designed, and the effects of the leak-proof wall 5 (improvement of fit to skin and prevention of liquid leakage) can be sufficiently obtained.
If the fold line used for folding the napkin 1 crosses the non-formation region A3 of the multi-layered portion in the leak-proof wall 5, the leak-proof wall in the region A3 is folded by folding the napkin 1 during individual packaging. 5 is likely to be disturbed, so that when the napkin 1 is used, the leak-proof wall 5 does not stand up sufficiently, the leak-proof wall 5 is disturbed in the standing direction, and the leak-proof wall 5 has wrinkles. A fear increases and the effect which should be show | played by the leak-proof wall 5 is not fully show | played.

尚、本実施形態においては、防漏壁における重層部の形成領域を横断する折り線（Ｌ１，Ｌ２）、及び防漏壁における重層部の形成領域の近傍を横断する折り線（Ｌ３）の２種類の折り線が形成されているが、本発明には、これらのうちの何れか１種類の折り線のみが形成されているものも含まれる。１種類の折り線のみを有する形態を採用する場合、この１種類の折り線としては、防漏壁の起立性の観点から、重層部の形成領域の近傍を横断する折り線が好ましい。 In this embodiment, the folding line (L1, L2) crossing the formation region of the multilayer portion in the leak-proof wall and the folding line (L3) transverse to the vicinity of the formation region of the multilayer portion in the leak-proof wall are described. Although various types of folding lines are formed, the present invention includes those in which only one type of folding lines is formed. In the case of adopting a form having only one type of fold line, the one type of fold line is preferably a fold line that crosses the vicinity of the formation region of the multi-layered portion from the viewpoint of the standing property of the leak-proof wall.

また、本実施形態においては、折り線Ｌ１〜Ｌ３の位置は、重層部５８Ａ，５８Ｂのみならず、防漏溝８とも密接に関係している。以下、この点について説明する。 Further, in the present embodiment, the positions of the folding lines L1 to L3 are closely related not only to the multilayer portions 58A and 58B but also to the leakage preventing groove 8. Hereinafter, this point will be described.

表面シート２の肌当接面側に、該表面シート２と吸収体４とが一体的に圧密化されて形成された防漏溝８が形成されている（図３（ｂ）参照）。防漏溝８は、少なくとも排泄部対向部Ａ及び後方部Ｂに亘って形成されている略楕円形状の全周溝８１と、該全周溝８１によって閉じられた領域内に形成され、後方部Ｂに位置する後方溝８２とからなる。後方溝８２は、ナプキン１の後端１Ｄに向けて凸の略Ｕ字状に形成されている。防漏溝８は、例えばヒートエンボス加工により形成することができる。 On the skin contact surface side of the surface sheet 2, a leak-proof groove 8 formed by integrally compacting the surface sheet 2 and the absorber 4 is formed (see FIG. 3B). The leak-proof groove 8 is formed in a substantially elliptical circumferential groove 81 formed over at least the excretory part facing part A and the rear part B, and in a region closed by the circumferential groove 81, and the rear part And a rear groove 82 located at B. The rear groove 82 is formed in a substantially U shape that is convex toward the rear end 1D of the napkin 1. The leak-proof groove 8 can be formed by, for example, heat embossing.

上層吸収体４１は、平面視で全周溝８１によって包囲されており、表面シート２と下層吸収体４２とからなる閉鎖空間に封入されている。更に、上層吸収体４１の長手方向後端部は、後方溝８２によっても包囲されている。防漏溝８が上層吸収体４１との関係においてこのように配されていることにより、上層吸収体４１における液の吸収効率が一層高められると共に、特に後方部Ｂの上向きの可撓性が一層高められ、身体に対するフィット性が一層向上する。 The upper layer absorber 41 is surrounded by the entire circumferential groove 81 in a plan view, and is enclosed in a closed space including the top sheet 2 and the lower layer absorber 42. Further, the rear end of the upper absorbent body 41 in the longitudinal direction is also surrounded by the rear groove 82. By arranging the leak-proof groove 8 in this way in relation to the upper layer absorber 41, the liquid absorption efficiency in the upper layer absorber 41 is further enhanced, and in particular, the upward flexibility of the rear portion B is further increased. It is enhanced and the fit to the body is further improved.

全周溝８１は、図２に示すように、平面視において４つの変曲点８１ａ，８１ｂ，８１ｃ，８１ｄを有している。本明細書において、変曲点とは、曲率の異なる２種類の曲線の変わり目を意味し、この変わり目で引いた接線に対し、曲線の一方と他方とが異なる側にあるもののみならず、同じ側にあるものも含まれる。変曲点８１ａと８１ｂとは、ナプキン１の幅方向中央を通る仮想直線（図示せず）を介して左右対称に位置している。同様に、変曲点８１ｃと８１ｄとも該仮想直線を介して左右対称に位置している。 As shown in FIG. 2, the entire circumferential groove 81 has four inflection points 81a, 81b, 81c, 81d in plan view. In this specification, the inflection point means the transition between two types of curves having different curvatures, and the same as the tangent drawn at the transition, not only on the side where one of the curves is different from the other. The ones on the side are also included. The inflection points 81a and 81b are located symmetrically via a virtual straight line (not shown) passing through the center of the napkin 1 in the width direction. Similarly, the inflection points 81c and 81d are located symmetrically via the virtual straight line.

また、ナプキン１の長手方向一端（１Ｃ又は１Ｄ）から他端（１Ｄ又は１Ｃ）に亘って、該ナプキン１の幅方向に延びる図示しない仮想直線（前記折り線と平行な仮想直線）を横断する防漏溝の数を数えた場合、例えば排泄部対向部Ａのように、全周溝８１のみが形成されている箇所における該防漏溝の数は２本であり、後方部Ｂの一部の領域のように、全周溝８１に加えて後方溝８２が形成されている箇所における該防漏溝の数は４本である。このように、後方溝８２の長手方向前後端は、何れも防漏溝の数に変化が生じる箇所である。
従って、全周溝８１と後方溝８２とからなる防漏溝８は、「平面視において変曲点を有し、且つ吸収性物品の長手方向一端から他端に亘って、該吸収性物品の幅方向に延びる仮想線を横断する防漏溝の数を数えた場合に、その数に変化が生じる形状」（本願の請求項２に記載の形状（３））を有している。 Further, a virtual straight line (not shown) extending in the width direction of the napkin 1 (a virtual straight line parallel to the fold line) extends from one end (1C or 1D) in the longitudinal direction of the napkin 1 to the other end (1D or 1C). When the number of leak-proof grooves is counted, the number of the leak-proof grooves in a place where only the entire circumferential groove 81 is formed, such as the excretory part facing part A, is two, and a part of the rear part B The number of the leak-proof grooves in the part where the rear groove 82 is formed in addition to the whole circumferential groove 81 is four. Thus, the longitudinal front and rear ends of the rear groove 82 are places where the number of leak-proof grooves changes.
Therefore, the leakage preventing groove 8 composed of the entire circumferential groove 81 and the rear groove 82 is “having an inflection point in plan view and extending from one end to the other end in the longitudinal direction of the absorbent article. When the number of leak-proof grooves crossing the imaginary line extending in the width direction is counted, the number changes (the shape (3) according to claim 2 of the present application).

そして、本実施形態においては、折り線Ｌ１〜Ｌ３が、上述したように防漏壁５における重層部５８Ａ，５８Ｂの形成領域又はその近傍を横断していることに加えて、「防漏溝の変曲点」（８１ａ，８１ｂ，８１ｃ，８１ｄ）又は「防漏溝の数が変化する箇所」（８ｃ）を横断している。本明細書において、「防漏溝の数が変化する箇所」とは、上記のようにナプキン１の幅方向に延びる仮想直線（図示せず）を横断する防漏溝の数を数えた場合に、その数に変化が生じた箇所（本実施形態では後方溝８２の長手方向前後端）を中心として、該箇所からその前後方向（該仮想直線と直交する方向）それぞれに５ｍｍ離間した位置に亘る領域を意味する。
具体的には、折り線Ｌ１及びＬ２は、何れも防漏壁５における重層部５８Ｂの形成領域を横断すると共に、防漏溝の数が変化する箇所８ｃを横断しており、折り線Ｌ３は、防漏壁５における重層部５８Ａの形成領域の近傍を横断すると共に、防漏溝８（全周溝８１）の変曲点８１ａ及び８１ｂを横断している。 And in this embodiment, in addition to the folding lines L1-L3 crossing the formation area of the multilayer parts 58A and 58B in the leak-proof wall 5 or the vicinity thereof as described above, It crosses the “inflection point” (81a, 81b, 81c, 81d) or “the place where the number of leak-proof grooves changes” (8c). In this specification, the “location where the number of leak-proof grooves changes” means that the number of leak-proof grooves that cross an imaginary straight line (not shown) extending in the width direction of the napkin 1 is counted as described above. , Centering on the place where the number has changed (in this embodiment, the front and rear ends in the longitudinal direction of the rear groove 82), the position extends from the place to the front and rear direction (direction perpendicular to the virtual straight line) by 5 mm. Means an area.
Specifically, the fold lines L1 and L2 both cross the formation region of the multilayer portion 58B in the leak-proof wall 5 and also cross the portion 8c where the number of leak-proof grooves changes, and the fold line L3 is In addition, the leakage preventing wall 5 crosses the vicinity of the formation region of the multilayer portion 58A and also crosses the inflection points 81a and 81b of the leakage preventing groove 8 (entire circumferential groove 81).

このように、ナプキン１の折り畳みに利用される折り線Ｌ１〜Ｌ３が、「防漏溝の変曲点」又は「防漏溝の数が変化する箇所」を横断していることにより、ナプキン１の折り曲げ易さが一層高まり、折り曲げた時に表面シート２などに折り皴が発生し難くなる。表面シート２に折り皴が発生すると、防漏壁５の乱れに繋がる可能性があるため、斯かる構成は、防漏壁５の乱れ防止及び安定した性能発揮にも有効である。「防漏溝の変曲点」及び「防漏溝の数が変化する箇所」は、何れもナプキン１の剛性の変化点でもあり、ナプキン１の剛性が相対的に低いため、ナプキン１を折り曲げ易い。 In this way, the fold lines L1 to L3 used for folding the napkin 1 cross the “inflection point of the leakage prevention groove” or “the place where the number of leakage prevention grooves changes”. The foldability of the sheet is further increased, and creases are less likely to occur in the surface sheet 2 and the like when folded. If a crease occurs in the surface sheet 2, there is a possibility that the leakage preventing wall 5 may be disturbed. Such a configuration is also effective for preventing the leakage preventing wall 5 from being disturbed and exhibiting stable performance. “The inflection point of the leak-proof groove” and “the place where the number of leak-proof grooves change” are both the change point of the rigidity of the napkin 1, and the napkin 1 has a relatively low rigidity, so the napkin 1 is bent. easy.

本実施形態のナプキン１における表面シート２（表面層）、裏面シート３（防漏層）及び吸収体４（吸収層）としては、生理用ナプキン等の吸収性物品において従来から用いられている各種材料を特に制限なく用いることができる。
表面シート２としては、例えば、親水化処理が施された各種不織布や開孔フィルム等の液透過性のシートを用いることができる。裏面シート３としては、例えば、熱可塑性樹脂のフィルム（ポリエチレンフィルム等）や、該フィルムと不織布とのラミネート等の液不透過性又は撥水性のシートを用いることができ、水蒸気透過性を有するものを用いることもできる。
吸収体４としては、生理用ナプキン等の吸収性物品における吸収体として従来から用いられている各種材料を特に制限なく用いることができ、例えば、パルプ繊維を堆積させて得られた積繊層、パルプ繊維を原料とする不織布からなるものを用いることができる。吸収体４は吸収性ポリマーを含有していてもよい。 As the surface sheet 2 (surface layer), the back surface sheet 3 (leak-proof layer), and the absorber 4 (absorption layer) in the napkin 1 of this embodiment, various types conventionally used in absorbent articles such as sanitary napkins. The material can be used without any particular limitation.
As the surface sheet 2, for example, liquid permeable sheets such as various nonwoven fabrics and perforated films subjected to a hydrophilic treatment can be used. As the back sheet 3, for example, a liquid-impermeable or water-repellent sheet such as a thermoplastic resin film (polyethylene film or the like) or a laminate of the film and a nonwoven fabric can be used, and has water vapor permeability. Can also be used.
As the absorbent body 4, various materials conventionally used as absorbent bodies in absorbent articles such as sanitary napkins can be used without particular limitation, for example, a pile layer obtained by depositing pulp fibers, What consists of a nonwoven fabric which uses a pulp fiber as a raw material can be used. The absorber 4 may contain an absorbent polymer.

また、防漏壁５を構成する防漏壁形成用シート５３としては、生理用ナプキン等の吸収性物品における防漏壁を構成する材料として従来から用いられている材料を特に制限なく用いることができ、特に好ましくは疎水性不織布等の撥水性のシートが用いられる。
防漏壁５における基壁部弾性部材９１及び肌当接部弾性部材９２は、弾性を有しているものであれば、糸状の弾性部材に制限されず、帯状のものでもよい。
また、防漏壁５は、本実施形態においては基壁部５１と肌当接部５２とが一体的に形成されているが、基壁部５１と肌当接部５２とを別々に製造し、それらを接合して形成することもできる。 Moreover, as the sheet 53 for leak-proof wall formation which comprises the leak-proof wall 5, the material conventionally used as a material which comprises the leak-proof wall in absorbent articles, such as a sanitary napkin, can be used without a restriction | limiting in particular. Particularly preferably, a water-repellent sheet such as a hydrophobic nonwoven fabric is used.
The base wall elastic member 91 and the skin contact elastic member 92 in the leak-proof wall 5 are not limited to thread-like elastic members as long as they have elasticity, and may be belt-like.
Further, in the present embodiment, the base wall part 51 and the skin contact part 52 are integrally formed in the leak-proof wall 5, but the base wall part 51 and the skin contact part 52 are manufactured separately. They can also be formed by joining them.

本実施形態の個装体３０は、上述の如き構成を有するナプキン１を、包装材２０と共に、幅方向を横断する折り線Ｌ１〜Ｌ３に沿って折り畳み、該包装材２の所定箇所を封止することにより得られる。
具体的には、図２に示す如き、包装材２上に展開状態のナプキン１が載置されている状態から、図６に示すように、先ず、折り線Ｌ１に沿って、ナプキン１を、包装材２０と共にナプキン１の長手方向に向けて肌当接面側に折り曲げる。次いで、折り線Ｌ２に沿って、ナプキン１を同様に折り曲げ、更に、折り線Ｌ３に沿って、ナプキン１を同様に折り曲げる。
そして、このようにして折り畳まれた状態のナプキン１の両側縁から幅方向外方に延出する包装材２０の両側部を、エンボス加工等の公知の接合方法により封止すると共に、包装材２０の端縁部をタブテープ２１で所定箇所に止着することにより、図１に示す如きナプキン１の個装体３０が得られる。
尚、一対のウイング部７，７は、予め、吸収体４の長手方向両側縁に沿って該吸収体４の肌当接面側の面上（表面シート２上）に折り曲げておいても良い。この場合、ウイング部７の非肌当接面側に設けられている前記ウイング部粘着部（図示せず）を、包装材２０とは別体の剥離シートで被覆し、ナプキン１の使用時まで保護しておくことが望ましい。 The individual package 30 according to the present embodiment folds the napkin 1 having the above-described configuration together with the packaging material 20 along folding lines L1 to L3 that cross the width direction, and seals predetermined portions of the packaging material 2 Can be obtained.
Specifically, as shown in FIG. 2, from the state where the unfolded napkin 1 is placed on the packaging material 2, first, as shown in FIG. 6, first, the napkin 1 is moved along the fold line L 1. Along with the packaging material 20, the napkin 1 is bent toward the skin contact surface side in the longitudinal direction. Next, the napkin 1 is similarly bent along the folding line L2, and the napkin 1 is similarly bent along the folding line L3.
Then, both sides of the packaging material 20 extending outward in the width direction from both side edges of the napkin 1 folded in this way are sealed by a known joining method such as embossing and the packaging material 20. 1 is fixed to a predetermined place with a tab tape 21 to obtain an individual package 30 of the napkin 1 as shown in FIG.
Note that the pair of wing portions 7, 7 may be bent in advance on the skin contact surface side surface (on the top sheet 2) of the absorbent body 4 along both longitudinal edges of the absorbent body 4. . In this case, the wing portion adhesive portion (not shown) provided on the non-skin contact surface side of the wing portion 7 is covered with a release sheet separate from the packaging material 20 until the napkin 1 is used. It is desirable to protect it.

本実施形態の個装体３０は、この種の吸収性物品の個装体と同様に使用することができる。
上述の如き構成を有する本実施形態のナプキン１の個装体３０によれば、折り線Ｌ１〜Ｌ３が、防漏壁５における重層部５８Ａ，５８Ｂの形成領域又はその近傍を横断しているため、ナプキン１を折り線Ｌ１〜Ｌ３で折り曲げたことに起因する防漏壁５の乱れが効果的に防止される。従って、防漏壁５に期待される作用効果が充分に発揮され、肌へのフィット性及び液漏れ防止性の点で満足できる結果が得られる。
また、本実施形態のように、折り線Ｌ１〜Ｌ３が、防漏壁５における重層部５８Ａ，５８Ｂの形成領域又はその近傍を横断していることに加えて、「防漏溝の変曲点」又は「防漏溝の数が変化する箇所」を横断している場合には、ナプキン１（吸収体４）の折り曲げ易さが更に高まり、ナプキン１を折り線Ｌ１〜Ｌ３で折り曲げたことに起因する表面シート２や吸収体４の乱れが効果的に防止され、ひいては肌へのフィット性及び液漏れ防止性が更に向上する。
また、本実施形態のように、基壁部５１における上端部５４近傍に、防漏壁５の長手方向に亘って基壁部弾性部材９１が配されている場合には、肌当接部５２の面形状を一層安定的に保持することができ、着用者の肌に対するフィット性及び液漏れ防止性の点でより満足できる結果が得られる。 The individual package 30 of this embodiment can be used in the same manner as the individual package of this type of absorbent article.
According to the individual package 30 of the napkin 1 of the present embodiment having the above-described configuration, the fold lines L1 to L3 cross the formation regions of the multilayer portions 58A and 58B in the leak-proof wall 5 or the vicinity thereof. The disturbance of the leak-proof wall 5 caused by bending the napkin 1 along the folding lines L1 to L3 is effectively prevented. Therefore, the effects expected of the leak-proof wall 5 are sufficiently exhibited, and satisfactory results are obtained in terms of fit to skin and prevention of liquid leakage.
Further, in addition to the folding lines L1 to L3 crossing the formation region of the multilayer portions 58A and 58B in the leak-proof wall 5 or the vicinity thereof as in the present embodiment, “the inflection point of the leak-proof groove” ”Or“ where the number of leak-proof grooves changes ”, the ease of folding the napkin 1 (absorber 4) is further increased, and the napkin 1 is folded at the folding lines L1 to L3. The resulting disturbance of the surface sheet 2 and the absorber 4 is effectively prevented, and as a result, the fit to the skin and the liquid leakage prevention property are further improved.
Moreover, when the base wall part elastic member 91 is distribute | arranged to the longitudinal direction of the leak-proof wall 5 in the vicinity of the upper end part 54 in the base wall part 51 like this embodiment, the skin contact part 52 is provided. The surface shape can be more stably maintained, and more satisfactory results can be obtained in terms of fit to the wearer's skin and prevention of liquid leakage.

また、肌当接部５２が内方肌当接部５２Ａと外方肌当接部５２Ｂとからなり、両肌当接部５２Ａ，５２Ｂに内方弾性部材９２Ａ及び外方弾性部材９２Ｂが配されていることにより、肌当接部５２が伸縮性を有し、着用者の肌に対するフィット性が更に向上する。
更に、防漏壁５が、その幅方向の断面がＴ字状に形成されていることにより、肌当接部５２が着用者の肌に面状に当接しやすい。 Further, the skin contact portion 52 includes an inner skin contact portion 52A and an outer skin contact portion 52B, and the inner elastic member 92A and the outer elastic member 92B are disposed on both skin contact portions 52A and 52B. By having it, the skin contact part 52 has a stretching property, and the fit property with respect to a wearer's skin further improves.
Furthermore, since the leak-proof wall 5 has a T-shaped cross section in the width direction, the skin contact portion 52 is likely to contact the wearer's skin in a planar shape.

本発明の吸収性物品の個装体は、前記実施形態に制限されるものではなく、本発明の趣旨を逸脱しない範囲において種々変形可能である。
例えば、重層部５８Ａ，５８Ｂは、何れも基壁部５１の一部がナプキン１の幅方向内方に延出するように折り重ねられて形成されていたが、該一部がナプキン１の幅方向外方に延出するように折り重ねられて形成されていても良い。
また、前記実施形態では、排泄部対向部Ａにおける前端部Ｃ寄りの領域Ａ１には図３（ｃ）に示す如き形態の重層部５８Ａが、排泄部対向部Ａにおける後方部Ｂ寄りの領域Ａ２及び後方部Ｂの全領域には図３（ｄ）に示す如き形態の重層部５８Ｂが、それぞれ形成されていたが、これとは逆に、領域Ａ１に重層部５８Ｂが、領域Ａ２及び後方部Ｂの全領域に重層部５８Ａが設けられていても良く、あるいは、ナプキン１に設けられている重層部の全てが、重層部５８Ａ又は５８Ｂの何れかであっても良い。 The individual package of the absorbent article of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
For example, each of the multi-layered portions 58A and 58B is formed by being folded so that a part of the base wall part 51 extends inward in the width direction of the napkin 1, but this part is the width of the napkin 1. It may be formed by being folded so as to extend outward in the direction.
Moreover, in the said embodiment, in the area | region A1 near the front-end part C in the excretion part opposing part A, the multilayer part 58A of a form as shown in FIG.3 (c) is the area | region A2 near the back part B in the excretion part opposing part A. 3B, the multi-layered portion 58B having the form as shown in FIG. 3D is formed in the entire region of the rear portion B. On the contrary, the multi-layered portion 58B is formed in the region A1, and the region A2 and the rear portion are formed. The multilayer portion 58A may be provided in the entire region B, or all the multilayer portions provided in the napkin 1 may be either the multilayer portion 58A or 58B.

重層部５８Ａ，５８Ｂの折り重ね回数、幅、折り重ねられた対向面における接着剤、ヒートシール等の接合手段の位置、並びに防漏壁５における重層部５８Ａ，５８Ｂの配置箇所等は、適宜設定することができる。
また、前記折り線、即ち、吸収性物品の幅方向を横断し且つ前記防漏壁における前記重層部の形成領域又はその近傍を横断する折り線）の数に特に制限は無い。 The number of folds of the multilayer portions 58A and 58B, the width, the position of the bonding means such as the adhesive and the heat seal on the folded opposing surfaces, and the location of the multilayer portions 58A and 58B on the leak-proof wall 5 are appropriately set. can do.
Moreover, there is no restriction | limiting in particular in the number of the said folding lines, ie, the folding line which crosses the width direction of an absorbent article, and crosses the formation area of the said multilayer part in the said leak-proof wall, or its vicinity.

また、断面Ｔ字状の防漏壁５を採用する場合、内方肌当接部５２Ａ及び外方肌当接部５２Ｂそれぞれの張り出し幅は同一でもよく、外方肌当接部５２Ｂの方が内方肌当接部５２Ａよりも張り出し幅が大きくてもよい。
また、内方肌当接部５２Ａ及び外方肌当接部５２Ｂは、上端部５４からそれぞれ水平に張り出していなくてもよく、例えば、それぞれの先端が斜め上方に向けて張り出すことにより、肌当接部５２と基壁部５１とが防漏壁５の幅方向の断面視においてＹ字状を形成していてもよく、また、内方肌当接部５２Ａ及び外方肌当接部５２Ｂの何れか一方のみが斜め上方に傾斜していてもよい。 Further, when the leak-proof wall 5 having a T-shaped cross section is adopted, the overhang widths of the inner skin contact portion 52A and the outer skin contact portion 52B may be the same, and the outer skin contact portion 52B is the same. The overhang width may be larger than the inner skin contact portion 52A.
Further, the inner skin contact portion 52A and the outer skin contact portion 52B do not have to protrude horizontally from the upper end portion 54, for example, the respective skin tips are projected obliquely upward. The contact portion 52 and the base wall portion 51 may form a Y shape in a cross-sectional view of the leak-proof wall 5 in the width direction, and the inner skin contact portion 52A and the outer skin contact portion 52B. Only one of them may be inclined obliquely upward.

また、面状の肌当接部５２を有する防漏壁５においては、内方肌当接部５２Ａがなく、外方肌当接部５２Ｂのみが設けられた形態でもよく、その反対に、外方肌当接部５２Ｂがなく、内方肌当接部５２Ａのみが設けられた形態でもよいが、肌当接部５２の面形状を安定させる点からは、これら２つの形態（内方又は外方の何れか一方にのみ肌当接部が設けられている（延出している）形態）において、肌当接部５２の延出方向とは異なる方向に基壁部５１より突出部（上端部５４より突出したものに限られない）が延出されていることが好ましく、基壁部５１の上端部５４よりナプキン１の内方又は外方に肌当接部５２が張り出して、基壁部５１の上端部５４付近に突出部が延出されていることがより好ましい。 Further, the leak-proof wall 5 having the planar skin contact portion 52 may have a form in which only the outer skin contact portion 52B is provided without the inner skin contact portion 52A. There may be a form in which only the inner skin contact part 52A is provided without the skin contact part 52B, but these two forms (inner side or outer side) are preferable in terms of stabilizing the surface shape of the skin contact part 52. In which the skin contact portion is provided (extended) only on one of the sides), the protruding portion (upper end portion) from the base wall portion 51 in a direction different from the extending direction of the skin contact portion 52 It is preferable that the skin contact portion 52 protrudes inward or outward of the napkin 1 from the upper end portion 54 of the base wall portion 51, thereby extending the base wall portion. More preferably, the protruding portion extends near the upper end portion 54 of 51.

吸収体４は、上層吸収体４１と下層吸収体４２とが接着剤やエンボス手段により一体化されていてもよく、また、中高構造を有していない平坦状であってもよい。
前述した各構成は、適宜組み合わせることができる。
また、前記実施形態では、本発明の吸収性物品の個装体の適用例の一つとして生理用ナプキンの個装体を挙げたが、例えばパンティライナー（おりものシート）、失禁パッド、使い捨ておむつ等の吸収性物品の個装体にも適用できる。 In the absorber 4, the upper layer absorber 41 and the lower layer absorber 42 may be integrated by an adhesive or embossing means, or may be a flat shape having no medium-high structure.
Each structure mentioned above can be combined suitably.
Moreover, in the said embodiment, although the individual package of the sanitary napkin was mentioned as one example of the application of the package of the absorbent article of this invention, For example, a panty liner (orimono sheet), an incontinence pad, a disposable diaper It can also be applied to individual packages of absorbent articles such as.

図１は、本発明の一実施形態である生理用ナプキンの個装体を示す平面図である。FIG. 1 is a plan view showing an individual package of a sanitary napkin according to an embodiment of the present invention. 図２は、図１に示す個装体の展開状態における生理用ナプキンの肌当接面側（表面シート側）を示す平面図である。FIG. 2 is a plan view showing the skin contact surface side (surface sheet side) of the sanitary napkin in the unfolded state of the individual package shown in FIG. 図３（ａ）は、図２に示すＸ１−Ｘ１線断面の模式図、図３（ｂ）は、図３（ａ）の部分拡大図、図３（ｃ）は、図２に示すＸ２−Ｘ２線断面の模式図、図３（ｄ）は、図２に示すＸ３−Ｘ３線断面の模式図、図３（ｅ）は、図２に示すＸ４−Ｘ４線断面の模式図である。3A is a schematic diagram of a cross section taken along line X1-X1 shown in FIG. 2, FIG. 3B is a partially enlarged view of FIG. 3A, and FIG. 3C is X2- shown in FIG. FIG. 3D is a schematic view of the X2-X3 cross section shown in FIG. 2, and FIG. 3E is a schematic view of the X4-X4 cross section shown in FIG. 図４は、図２に示すＸ１−Ｘ１線断面の一部の斜視図である。4 is a partial perspective view of a cross section taken along line X1-X1 shown in FIG. 図５は、図２に示す生理用ナプキンの自然状態における概略形態を示す斜視図である（折り線の図示を省略）。FIG. 5 is a perspective view showing a schematic form in the natural state of the sanitary napkin shown in FIG. 2 (the folding line is not shown). 図６は、図２に示す状態から生理用ナプキンを包装材と共に折り畳む過程を示す平面図である。FIG. 6 is a plan view showing a process of folding the sanitary napkin together with the packaging material from the state shown in FIG.

Explanation of symbols

３０個装体
２０包装材
１生理用ナプキン（吸収性物品）
２表面シート（表面層）
３裏面シート（防漏層）
４吸収体（吸収層）
４１上層吸収体
４２下層吸収体
５防漏壁
５１基壁部
５２肌当接部
５３防漏壁形成用シート
５４基壁部の上端部
５８Ａ，５８Ｂ重層部
９１基壁部弾性部材
９２肌当接部弾性部材
８防漏溝
８１全周溝
８１ａ，８１ｂ，８１ｃ，８１ｄ防漏溝の変曲点
８２後方溝
８ｃ防漏溝の数が変化する箇所
Ａ排泄部対向部
Ｂ後方部
Ｃ前端部
Ｄ後端部
Ｌ１〜Ｌ３折り線 30 individual packaging 20 packaging material 1 sanitary napkin (absorbent article)
2 Top sheet (surface layer)
3 Back sheet (leak-proof layer)
4 Absorber (absorbing layer)
41 Upper layer absorber 42 Lower layer absorber 5 Leak preventive wall 51 Base wall portion 52 Skin contact portion 53 Leak preventive wall forming sheet 54 Upper end portion of base wall portion 58A, 58B Multilayer portion 91 Base wall portion elastic member 92 Skin contact Elastic member 8 Leak-proof groove 81 Whole circumferential groove 81a, 81b, 81c, 81d Inflection point of leak-proof groove 82 Rear groove 8c Location where number of leak-proof grooves changes A Excretion part facing part B Rear part C Front end part D Rear end L1-L3 fold line

Claims

A fold line in which an absorbent article having a surface layer in contact with the skin, a leak-proof layer, and an absorbent layer interposed between the two layers and having a leak-proof wall on both sides in the longitudinal direction crosses the width direction. An absorbent article that is folded along and is individually packaged,
When the leak-proof wall is unwrapped and the absorbent article is deployed, the leak-proof wall is a base wall portion standing up from the outer side in the width direction of the absorbent layer, and a planar shape connected to the upper end portion of the base wall portion. Skin contact part,
Between a part of the leak-proof wall that is folded so that a part of the base wall part extends inward or outward in the width direction of the absorbent article, and between the folded opposing surfaces. A multilayer portion formed by bonding is provided, and the multilayer portion is not bonded to the skin contact portion and the leak-proof layer,
The fold line is an individual package of an absorbent article that crosses the formation region of the multilayer portion in the leak-proof wall or the vicinity thereof.

On the skin contact surface side of the surface layer, a leak-proof groove formed by integrally compacting the surface layer and the absorbent layer is formed, and the leak-proof groove is the following (1) to ( 3) any one of the shapes
The individual fold of the absorbent article according to claim 1, wherein the fold line crosses a portion where the inflection point of the leakage prevention groove or the number of the leakage prevention grooves changes.
(1) A shape having an inflection point in plan view.
(2) When the number of the leakage preventing grooves crossing an imaginary line extending in the width direction of the absorbent article from one end to the other end in the longitudinal direction of the absorbent article is counted, the number of the leakage preventing grooves A shape that changes.
(3) The number of the leak-proof grooves having an inflection point in a plan view and crossing an imaginary line extending in the width direction of the absorbent article from one end to the other end in the longitudinal direction of the absorbent article. A shape that changes when counted.

The individual packaging of the absorbent article according to claim 1 or 2, wherein there are a plurality of formation regions of the multilayer portion in the leak-proof wall.

The individual package of the absorbent article according to any one of claims 1 to 3, wherein a base wall elastic member is disposed in the vicinity of the upper end of the base wall along the longitudinal direction of the leak-proof wall.

The absorbent article according to claim 4, wherein the multilayer portion is not formed including the base wall elastic member.