JP5070022B2 - Absorbent articles - Google Patents

Absorbent articles Download PDF

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JP5070022B2
JP5070022B2 JP2007318057A JP2007318057A JP5070022B2 JP 5070022 B2 JP5070022 B2 JP 5070022B2 JP 2007318057 A JP2007318057 A JP 2007318057A JP 2007318057 A JP2007318057 A JP 2007318057A JP 5070022 B2 JP5070022 B2 JP 5070022B2
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back sheet
region
longitudinal direction
sheet
contact surface
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JP2009136601A (en
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綾子 牧野
毅人 伊藤
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Kao Corp
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Kao Corp
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Description

本発明は、失禁パッド、生理用ナプキン等の吸収性物品に関する。   The present invention relates to absorbent articles such as incontinence pads and sanitary napkins.

失禁パッド、生理用ナプキン等の吸収性物品は、通常、下着の股下部（クロッチ部）に固定されて使用される。このような吸収性物品においては、着用者の動作等に起因して下着が身体から離れると、該吸収性物品も身体から離れてしまい、漏れや違和感が生じるという問題があった。特に、下着が身体にフィットしないルーズなものである場合は、このような問題が顕著になる。   Absorbent articles such as incontinence pads and sanitary napkins are usually used by being fixed to the crotch part (crotch part) of underwear. In such an absorbent article, when an undergarment leaves | separates from a body resulting from a wearer's operation | movement etc., there existed a problem that this absorbent article will also separate from a body and a leak and discomfort will arise. In particular, when the underwear is loose that does not fit the body, such a problem becomes significant.

特許文献１には、体液吸収性物品の非肌当接面側に、底部シート及び頂部シートからなる支持具を配することで、該体液吸収性物品が身体の動きに追随できるようにした技術が記載されている。この支持具は、底部シートが、該シートの長手方向中央部に配された止着手段（粘着域）を介して下着の股下部の内面に沿って固定されて長手方向に湾曲すると共に、頂部シートが該底部シートの長手方向両端部間に平坦な状態で延びて体液吸収性物品を非肌当接面側から支持することにより、該体液吸収性物品を下着の股下部の内面から浮き上がらせる。   Patent Document 1 discloses a technique in which a support device including a bottom sheet and a top sheet is arranged on the non-skin contact surface side of a body fluid absorbent article so that the body fluid absorbent article can follow the movement of the body. Is described. In this support, the bottom sheet is fixed along the inner surface of the crotch part of the underwear via a fastening means (adhesive zone) disposed in the center in the longitudinal direction of the sheet, and is curved in the longitudinal direction. The sheet extends in a flat state between both longitudinal ends of the bottom sheet and supports the bodily fluid absorbent article from the non-skin contact surface side, thereby lifting the bodily fluid absorbent article from the inner surface of the crotch part of the underwear .

特許文献１には、支持具の長手方向中央域に下着との接着手段を設けた実施形態が具体的に開示されている。このような形態の吸収性物品は、下着の股下部に固定して使用した場合、着用者の股下部等の動きに合わせて前後領域が動き易くなる反面、運動時など動きが激しいときには一旦身体の動きに追従した吸収性物品に加えられた慣性力によって容易には元の方向に戻りにくい。その結果、吸収性物品の前後領域に拠れが生じて身体と吸収性物品の間に隙間が生じ、漏れが起きるおそれがある。また、その形態に起因して、身体の圧力が下着方向に加わった場合に、前記頂部シートの伸張によって吸収性物品の身体への密着性を確保するために、前記底部シートにはある程度の剛性が求められるものと考えられ、実際、特許文献１では熱可塑性プラスチックなど、剛性の高い材料のみを底部シート材料として挙げている。これに起因して、特許文献１に記載の吸収性物品は着用時の違和感を生じるおそれがある。
着用中に身体に対する密着性が高く、漏れや違和感を生じ難い吸収性物品は未だ提供されていない。 Patent Document 1 specifically discloses an embodiment in which means for bonding with an undergarment is provided in the central region in the longitudinal direction of the support. The absorbent article in such a form, when used fixed to the crotch part of the underwear, can easily move the front and back regions according to the movement of the wearer's crotch part, etc. It is difficult to return to the original direction easily due to the inertial force applied to the absorbent article following the movement of. As a result, depending on the front and rear regions of the absorbent article, a gap may be formed between the body and the absorbent article and leakage may occur. Also, due to its form, when the body pressure is applied in the underwear direction, the bottom sheet has a certain degree of rigidity in order to ensure the adherence of the absorbent article to the body by stretching the top sheet. In fact, in Patent Document 1, only a highly rigid material such as thermoplastic is listed as the bottom sheet material. Due to this, the absorbent article described in Patent Document 1 may cause a sense of incongruity when worn.
Absorbent articles that have high adhesion to the body during wearing and are less likely to cause leakage or discomfort have not yet been provided.

特開２００２−２０４８１２号公報JP 2002-204812 A

従って本発明の目的は、身体に対する密着性が高くて漏れを生じにくく、着用中に違和感を生じ難い吸収性物品を提供することにある。   Accordingly, an object of the present invention is to provide an absorbent article that has high adhesion to the body, is less likely to leak, and is less likely to cause discomfort during wearing.

本発明は、液保持性の吸収体と、その非肌当接面側に配された第１裏面シートとを有し、肌当接面側へ屈曲させて、長手方向に沿う前側領域、中央領域及び後側領域を形成する契機となる折り曲げ部を有する縦長の吸収性物品であって、第１裏面シートの非肌当接面側に第２裏面シートが配されており、第２裏面シートは、その長手方向前後端部それぞれが第１裏面シートに固定されて固定部を形成しており、これらの固定部の間に位置する第１裏面シートと第２裏面シートとの間は、互いに接合されずに非接合部を形成しており、前記非接合部の形成領域における第１裏面シート側には、弾性部材がその伸縮方向を前記吸収性物品の長手方向に一致させて伸長状態で配され、第２裏面シートにおける非肌当接面側の前記前側領域及び前記後側領域それぞれに、前記吸収性物品を着衣に固定する固定手段が配されている吸収性物品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 a liquid-retaining absorbent body and a first back sheet disposed on the non-skin contact surface side, and is bent toward the skin contact surface side so that a front region along the longitudinal direction, the center A vertically long absorbent article having a bent portion serving as an opportunity to form a region and a rear region, wherein the second back sheet is disposed on the non-skin contact surface side of the first back sheet, and the second back sheet Each of the front and rear end portions in the longitudinal direction is fixed to the first back sheet to form a fixed part, and the first back sheet and the second back sheet positioned between these fixed parts are mutually A non-joined portion is formed without being joined, and the elastic member is in an extended state with its stretch direction aligned with the longitudinal direction of the absorbent article on the first back sheet side in the formation region of the non-joined portion. The front region on the non-skin contact surface side in the second back sheet and the rear Each region, by providing an absorbent article securing means for securing said absorbent article to the clothing are arranged, is obtained by achieving the above object.

本発明の吸収性物品は、身体に対する密着性が高くて漏れが生じにくく、着用中の違和感を生じにくくすることが可能である。   The absorbent article of the present invention has high adhesion to the body and is unlikely to leak, making it difficult to cause discomfort during wearing.

以下、本発明の吸収性物品を、その好ましい一実施形態である失禁パッドに基づき図面を参照して説明する。
本実施形態の失禁パッド１は、図１〜図３に示すように、液保持性を有する縦長の吸収体２と、該吸収体２の非肌当接面側に配された第１裏面シート３とを有しており、実質的に縦長に形成されている。失禁パッド１は、図４に示すようにその肌当接面側へ屈曲させて、長手方向に沿う前側領域５Ａ、中央領域５Ｃ及び後側領域５Ｂを形成する契機となる溝（折り曲げ部）９を有している。前側領域５Ａ及び後側領域５Ｂそれぞれは、溝９によって失禁パッド１の肌当接面側（表面シート４側）に屈曲し易くなされている。
尚、本明細書において、肌当接面は、吸収性物品着用時に着用者の肌側に向けられる面であり、非肌当接面は、吸収性物品着用時に下着側（着用者の肌側とは反対側）に向けられる面である。 Hereinafter, the absorbent article of the present invention will be described with reference to the drawings based on an incontinence pad which is a preferred embodiment thereof.
As shown in FIGS. 1 to 3, the incontinence pad 1 of the present embodiment includes a vertically long absorbent body 2 having liquid retaining properties, and a first back sheet disposed on the non-skin contact surface side of the absorbent body 2. 3 and is formed substantially vertically long. As shown in FIG. 4, the incontinence pad 1 is bent toward the skin contact surface side, and a groove (folding portion) 9 is used as an opportunity to form a front region 5A, a central region 5C, and a rear region 5B along the longitudinal direction. have. Each of the front region 5A and the rear region 5B is easily bent to the skin contact surface side (surface sheet 4 side) of the incontinence pad 1 by the groove 9.
In the present specification, the skin contact surface is a surface directed toward the wearer's skin when the absorbent article is worn, and the non-skin contact surface is the underwear side (the wearer's skin side) when the absorbent article is worn. It is the surface that faces the other side.

本実施形態においては、吸収体２の肌当接面側に液透過性の表面シート４が配されており、吸収体２は、表面シート４と第１裏面シート３との間に介在配置されている。表面シート４は、失禁パッド１の肌当接面を形成している。表面シート４は吸収体２の肌当接面側の全域を被覆しており、第１裏面シート３は吸収体２の非肌当接面側の全域を被覆している。
尚、本明細書において、長手方向は、特に断らない限り、縦長の失禁パッド１の長辺に沿う方向であり、幅方向は、該長手方向と直交する方向である。 In the present embodiment, a liquid-permeable top sheet 4 is disposed on the skin contact surface side of the absorbent body 2, and the absorbent body 2 is disposed between the top sheet 4 and the first back sheet 3. ing. The top sheet 4 forms a skin contact surface of the incontinence pad 1. The top sheet 4 covers the entire area of the absorbent body 2 on the skin contact surface side, and the first back sheet 3 covers the entire area of the absorbent body 2 on the non-skin contact surface side.
In the present specification, unless otherwise specified, the longitudinal direction is a direction along the long side of the vertically long incontinence pad 1, and the width direction is a direction orthogonal to the longitudinal direction.

第１裏面シート３と、吸収体２の非肌当接面側に達している表面シート４とは、接着剤やヒートシール等の所定の接合手段によって接合されている。また、表面シート４及び第１裏面シート３は、吸収体２の長手方向前後端から外方に延出しており、それらの延出部において接着剤やヒートシール等の所定の接合手段により互いに接合されてエンドシール部を形成している。
また、表面シート４と吸収体２との間、及び吸収体２と第１裏面シート３との間は、それぞれ、ホットメルト接着剤等の所定の接合手段により接合されている。 The 1st back surface sheet 3 and the surface sheet 4 which has reached the non-skin contact surface side of the absorber 2 are joined by predetermined joining means such as an adhesive or heat seal. Further, the top sheet 4 and the first back sheet 3 extend outward from the longitudinal front and rear ends of the absorbent body 2, and are joined to each other by a predetermined joining means such as an adhesive or heat seal at the extending portions. Thus, an end seal portion is formed.
Moreover, between the surface sheet 4 and the absorber 2, and between the absorber 2 and the 1st back surface sheet 3 are each joined by predetermined joining means, such as a hot-melt-adhesive.

第１裏面シート３の非肌当接面側には第２裏面シート５が配されている。第１裏面シート３が、この種の吸収性物品における裏面シートと同様に、主として、パッド外部への液の漏れ出しを防止する役割を担うのに対し、第２裏面シート５は、主として、失禁パッド１を着衣に固定する際の位置決めに利用される。従って、第１裏面シート３は、好ましくは液不透過性又は撥水性を有しているのに対し、第２裏面シート５は、液不透過性又は撥水性を有している必要は無く、表面シート４と同様に、液透過性を有していても良い。   A second back sheet 5 is arranged on the non-skin contact surface side of the first back sheet 3. The first back sheet 3 mainly plays a role of preventing leakage of the liquid to the outside of the pad, like the back sheet in this type of absorbent article, whereas the second back sheet 5 is mainly incontinence. It is used for positioning when the pad 1 is fixed to the clothes. Accordingly, the first back sheet 3 preferably has liquid impermeability or water repellency, whereas the second back sheet 5 does not need to have liquid impermeability or water repellency. Similar to the top sheet 4, it may have liquid permeability.

また、第２裏面シート５としては、特許文献１に記載の底部シートの如き、剛性が比較的高く硬いシート（例えば熱可塑性プラスチックの発泡シート、合成ゴム等のエラストマーからなるシート、発泡したエラストマーからなるシート、熱可塑性プラスチックの射出成形品）を用いる必要は無く、不織布、樹脂フィルムの如き、剛性が比較的低く柔軟なシートを用いることができる。良好な着用感を得る観点から、第２裏面シート５としては、不織布を用いることが好ましい。また、同様の観点から、第２裏面シート５の坪量は、好ましくは１０〜５０ｇ／ｍ2、更に好ましくは１０〜３０ｇ／ｍ2である。 The second back sheet 5 is a sheet having a relatively high rigidity such as a bottom sheet described in Patent Document 1 (for example, a foamed sheet of thermoplastic plastic, a sheet made of an elastomer such as synthetic rubber, or a foamed elastomer). Sheet, thermoplastic injection molded product), and a flexible sheet having relatively low rigidity, such as a nonwoven fabric or a resin film, can be used. From the viewpoint of obtaining a good wearing feeling, it is preferable to use a non-woven fabric as the second back sheet 5. From the same viewpoint, the basis weight of the second back sheet 5 is preferably 10 to 50 g / m 2 , more preferably 10 to 30 g / m 2 .

第２裏面シート５は、第１裏面シート３と略同じ寸法を有し、第１裏面シート３の非肌当接面上に重ねて配されている。
第２裏面シート５の寸法は、吸収性物品の寸法や吸収性物品が固定される下着の寸法に合わせて適宜設定することができる。例えば吸収性物品が女性用失禁パッドであれば一般的に、長手方向の長さは１０〜４５ｃｍ、幅方向の長さは３〜１２ｃｍである。 The second back sheet 5 has substantially the same dimensions as the first back sheet 3 and is arranged on the non-skin contact surface of the first back sheet 3.
The dimension of the 2nd back surface sheet 5 can be suitably set according to the dimension of the underwear to which the dimension of an absorbent article or an absorbent article is fixed. For example, if the absorbent article is a female incontinence pad, the length in the longitudinal direction is generally 10 to 45 cm and the length in the width direction is 3 to 12 cm.

第２裏面シート５は、図３に示すように、その長手方向前後端部それぞれが第１裏面シート３に固定されて固定部３５Ａ，３５Ｂを形成している。より具体的には、失禁パッド１の表面シート４側には、表面シート４と吸収体２とが一体的に圧密化されて形成された、幅方向に延びる一対の線状の溝（折り曲げ部）９，９が形成されており、第２裏面シート５（失禁パッド１）は、この一対の溝９，９によって長手方向に、パッド着用者の前側（腹側）に配される前側領域５Ａ、パッド着用者の後側（背側）に配される後側領域５Ｂ、及びこれら両領域５Ａ，５Ｂ（一対の溝９，９）に挟まれた中央領域５Ｃに区分され、且つこれら前側領域５Ａ、後側領域５Ｂそれぞれにおいて、第１裏面シート３に固定されて固定部３５Ａ，３５Ｂを形成している。本実施形態における固定部３５Ａ，３５Ｂは、ホットメルト接着剤が第２裏面シート５における前側領域５Ａ、後側領域５Ｂそれぞれの全幅に亘って塗布されることにより形成されている。これらの固定部３５Ａ，３５Ｂの間（中央領域５Ｃ）に位置する第１裏面シート３と第２裏面シート５との間は、その全幅に亘って互いに接合されずに非接合部３５Ｃを形成している。本実施形態における非接合部３５Ｃは、失禁パッド１の長手方向中央部に存している。
前側領域５Ａ，後側領域５Ｂの長手方向に沿った長さは、吸収性物品の長手方向の全長に対してそれぞれ１０〜３５％、好ましくは１５〜３５％であり、最も好ましくは該全長の１／４〜１／３である。 As shown in FIG. 3, the front and rear end portions of the second back sheet 5 are fixed to the first back sheet 3 to form fixed portions 35 </ b> A and 35 </ b> B. More specifically, on the surface sheet 4 side of the incontinence pad 1, a pair of linear grooves (bending portions) extending in the width direction are formed by integrally compacting the surface sheet 4 and the absorbent body 2. ) 9, 9 is formed, and the second back sheet 5 (incontinence pad 1) is a front region 5A that is disposed on the front side (abdominal side) of the pad wearer in the longitudinal direction by the pair of grooves 9, 9. A rear region 5B disposed on the rear side (back side) of the pad wearer, and a central region 5C sandwiched between these regions 5A and 5B (a pair of grooves 9, 9), and these front regions 5A and the rear region 5B are fixed to the first back sheet 3 to form fixing portions 35A and 35B. The fixing portions 35 </ b> A and 35 </ b> B in the present embodiment are formed by applying the hot melt adhesive over the entire width of each of the front region 5 </ b> A and the rear region 5 </ b> B in the second back sheet 5. Between the first back sheet 3 and the second back sheet 5 located between the fixing parts 35A and 35B (central region 5C), a non-joining part 35C is formed without being joined to each other over the entire width. ing. The non-joining portion 35 </ b> C in the present embodiment exists in the center portion in the longitudinal direction of the incontinence pad 1.
The lengths along the longitudinal direction of the front region 5A and the rear region 5B are 10 to 35%, preferably 15 to 35%, respectively, and most preferably the total length in the longitudinal direction of the absorbent article. 1/4 to 1/3.

固定部３５Ａは、第２裏面シート５の長手方向前端５ａから長手方向の内方に該第２裏面シート５の長手方向の全長の１０〜３５％以内、特に２０〜３０％以内の領域に形成されることが好ましい。
また、固定部３５Ｂは、第２裏面シート５の長手方向後端５ｂから長手方向の内方に該第２裏面シート５の長手方向の全長の１０〜３５％以内、特に２０〜３０％以内の領域に形成されることが好ましい。 The fixing portion 35A is formed in a region within 10 to 35%, particularly within 20 to 30% of the entire length in the longitudinal direction of the second back sheet 5 from the front end 5a in the longitudinal direction of the second back sheet 5 to the inside in the longitudinal direction. It is preferred that
Further, the fixing portion 35B is within 10 to 35%, particularly within 20 to 30% of the entire length in the longitudinal direction of the second back sheet 5 from the longitudinal rear end 5b of the second back sheet 5 inward in the longitudinal direction. It is preferable to be formed in the region.

非接合部３５Ｃは、失禁パッド１の中央領域５Ｃに設けられる。中央領域５Ｃは、失禁パッド１の着用時に着用者の排泄部位に対向する排泄部対向部（図示せず）を含む領域である。失禁パッド１における非接合部３５Ｃの形成領域は、後述するようにパッド着用時に下着の股下部の内面から浮き上がって身体に密着するため、漏れ防止を有効に発現する。
より具体的には、非接合部３５Ｃは、少なくとも、失禁パッド１を長手方向に二分する仮想直線（図示せず）から第２裏面シート５の長手方向前端５ａ及び後端５ｂそれぞれに該第２裏面シート５の長手方向の全長の３０〜８０％、特に４０〜６０％以内の領域に形成されていることが好ましい。本実施形態において非接合部３５Ｃは、中央領域５Ｃから前側領域５Ａ及び後側領域５Ｂ各々の一部にまで跨って存在している。 The non-joining portion 35C is provided in the central region 5C of the incontinence pad 1. The center region 5 </ b> C is a region including an excretion portion facing portion (not shown) that faces the excretion site of the wearer when the incontinence pad 1 is worn. As described later, the formation region of the non-joint portion 35C in the incontinence pad 1 is lifted from the inner surface of the crotch part of the undergarment when the pad is worn, and is in close contact with the body.
More specifically, the non-joint portion 35C is provided at least from the virtual straight line (not shown) that bisects the incontinence pad 1 in the longitudinal direction to each of the front end 5a and the rear end 5b in the longitudinal direction of the second back sheet 5. It is preferable that the back sheet 5 is formed in a region within 30 to 80%, particularly 40 to 60% of the entire length in the longitudinal direction. In the present embodiment, the non-joining portion 35C exists from the central region 5C to a part of each of the front region 5A and the rear region 5B.

非接合部３５Ｃの形成領域における第１裏面シート３側には、弾性部材６がその伸縮方向を吸収体２の長手方向に一致させて伸長状態で配されている。ここで「第１裏面シート側」とは、弾性部材６が、第１裏面シート３と第２裏面シート５との間を境界として該境界よりも肌当接面側（上側）に配され、第２裏面シート５には配されていないことを意味する。本実施形態においては、図１、図２及び図４に示すように、非接合部３５Ｃにおける第１裏面シート３の非肌当接面側の長手方向左右両側縁部それぞれに、１本の細長い帯状の弾性部材６が、その長手方向を吸収体２の長手方向に一致させて伸長状態で接着剤等の公知の接合手段により接合されており、その収縮率は１５〜５０％が好ましい。弾性部材６は、第１裏面シート３の非肌当接面側のみならず、第１裏面シート３の肌当接面側に配されていても良く、第１裏面シート３とは別部材で固定されていても良い。   On the first back sheet 3 side in the formation region of the non-joint portion 35C, the elastic member 6 is arranged in an extended state with its expansion / contraction direction coinciding with the longitudinal direction of the absorbent body 2. Here, the “first back sheet side” means that the elastic member 6 is disposed on the skin contact surface side (upper side) with respect to the boundary between the first back sheet 3 and the second back sheet 5, It means that it is not arranged on the second back sheet 5. In the present embodiment, as shown in FIGS. 1, 2, and 4, one elongated piece is provided at each of the left and right side edges in the longitudinal direction of the non-joint portion 35C on the non-skin contact surface side of the first back sheet 3. The belt-like elastic member 6 is joined by a known joining means such as an adhesive in an expanded state with its longitudinal direction coinciding with the longitudinal direction of the absorbent body 2, and the shrinkage rate is preferably 15 to 50%. The elastic member 6 may be disposed not only on the non-skin contact surface side of the first back sheet 3 but also on the skin contact surface side of the first back sheet 3, and is a separate member from the first back sheet 3. It may be fixed.

弾性部材６の長手方向の長さは、非接合部３５Ｃの形成領域の長手方向の長さに略一致して配されている。弾性部材６は、非接合部３５Cの形成領域の幅方向全域に配されていても良いが、図１に示す如く該形成領域の長手方向左右両側縁部のみに配することで、側縁部からの漏れを更に生じにくくできる。また、弾性部材６の本数は、左右両側縁部それぞれ１本ずつに限らず、複数本ずつでもよい。   The length in the longitudinal direction of the elastic member 6 is arranged to substantially coincide with the length in the longitudinal direction of the formation region of the non-joining portion 35C. The elastic member 6 may be disposed in the entire width direction of the formation region of the non-joint portion 35C, but as shown in FIG. 1, the elastic member 6 is disposed only on the left and right side edges in the longitudinal direction of the formation region. Leakage from the water can be further prevented. Further, the number of the elastic members 6 is not limited to one for each of the left and right side edges, but may be a plurality.

また、第２裏面シート５における非肌当接面側の前側領域５Ａ及び後側領域５Ｂそれぞれには、失禁パッド１を着衣５０に固定する固定手段７が配されている。本実施形態においては、図２に示すように、第２裏面シート５の非肌当接面側の前側領域５Ａ及び後側領域５Ｂそれぞれの長手方向中央部で且つ幅方向中央部に、平面視において矩形形状の固定手段７が、その長手方向を吸収体２の幅方向に一致させて配されている。固定手段７は、固定部３５Ａ及び３５Ｂそれぞれの形成領域に配されている。固定部３５Ａ，３５Ｂに挟まれた非接合部３５Ｃの形成領域には、固定手段７は配されていない。固定手段７は、ホットメルト接着剤を所定部位に塗布することにより形成されている。固定手段７は、不使用時には剥離シート（図示せず）によって保護されている。   A fixing means 7 for fixing the incontinence pad 1 to the clothing 50 is disposed in each of the front region 5A and the rear region 5B on the non-skin contact surface side in the second back sheet 5. In the present embodiment, as shown in FIG. 2, the front side region 5 </ b> A and the rear side region 5 </ b> B on the non-skin contact surface side of the second back sheet 5 are respectively viewed in plan view at the longitudinal center portion and the width direction center portion. The rectangular fixing means 7 is arranged with its longitudinal direction coinciding with the width direction of the absorber 2. The fixing means 7 is disposed in the formation region of each of the fixing portions 35A and 35B. The fixing means 7 is not disposed in the formation region of the non-joining portion 35C sandwiched between the fixing portions 35A and 35B. The fixing means 7 is formed by applying a hot melt adhesive to a predetermined part. The fixing means 7 is protected by a release sheet (not shown) when not in use.

固定部３５Ａ（３５Ｂ）の面積をＳ１、該固定部３５Ａ（３５Ｂ）の形成領域に配される固定手段７の面積Ｓ２とした場合、Ｓ１とＳ２との比（Ｓ１／Ｓ２）は、好ましくは０．３〜１、更に好ましくは０．５〜０．９である。   When the area of the fixing portion 35A (35B) is S1, and the area S2 of the fixing means 7 arranged in the formation region of the fixing portion 35A (35B), the ratio between S1 and S2 (S1 / S2) is preferably It is 0.3 to 1, more preferably 0.5 to 0.9.

本実施形態の失禁パッド１は、上述の如く構成されていることにより、図４に示すように、下着の股下部５０の内面５０ａに固定手段７を介して固定された状態で着用した場合に、弾性部材６，６の収縮力により、長手方向において肌当接面側に凹状に湾曲する。このとき、第２裏面シート５は、股下部５０と固定手段７，７を介して接合されているため、該第２裏面シート５の全体が該股下部５０に追従するが、第１裏面シート３は、非接合部３５Ｃの形成領域において、図４に示すように、吸収体２及び表面シート４と共に第２裏面シート５の肌当接面から浮き上がり、該形成領域における第１裏面シート３と第２裏面シート５との間に空間が形成される。しかも、失禁パッド１の前側領域５Ａと後側領域５Ｂが下着に固定され、且つ両領域５Ａ，５Ｂが折り曲げ部として機能する溝９で安定化されていることから両領域５Ａ，５Ｂが中央領域５Ｃ（非接合部３５Ｃの形成領域）の支持部として機能し、空間が安定するので、第２裏面シート５の材料として不織布のような柔らかい部材を選択可能になる。第２裏面シート５が柔らかい部材から形成されることは、良好な着用感につながる。こうして、下着の股下部５０の内面５０ａから浮き上がった非接合部３５Ｃの形成領域は、パッド着用者の身体の動きに追従しやすく、前記排泄部対向部に常に密着することができる。従って、上述の如き構成を有する本実施形態の失禁パッド１は、身体に対する密着性が高く、漏れや違和感を生じ難い。   The incontinence pad 1 of the present embodiment is configured as described above, and therefore, when worn while being fixed to the inner surface 50a of the crotch part 50 of the underwear via the fixing means 7, as shown in FIG. Due to the contraction force of the elastic members 6 and 6, the elastic members 6 and 6 are bent concavely toward the skin contact surface side in the longitudinal direction. At this time, since the second back sheet 5 is joined to the crotch part 50 via the fixing means 7 and 7, the entire second back sheet 5 follows the crotch part 50. 4, in the formation region of the non-joint portion 35 </ b> C, as shown in FIG. 4, it floats from the skin contact surface of the second back sheet 5 together with the absorber 2 and the top sheet 4, and the first back sheet 3 in the formation region A space is formed between the second back sheet 5 and the second back sheet 5. In addition, since the front region 5A and the rear region 5B of the incontinence pad 1 are fixed to the underwear, and both the regions 5A and 5B are stabilized by the grooves 9 functioning as bent portions, both the regions 5A and 5B are the central region. Since it functions as a support part of 5C (formation area of the non-joining part 35C) and the space is stabilized, a soft member such as a nonwoven fabric can be selected as the material of the second back sheet 5. The formation of the second back sheet 5 from a soft member leads to a good wearing feeling. In this way, the formation region of the non-joint portion 35C that is lifted from the inner surface 50a of the crotch portion 50 of the underwear can easily follow the movement of the pad wearer's body and can always be in close contact with the excretory portion facing portion. Therefore, the incontinence pad 1 according to the present embodiment having the above-described configuration has high adhesion to the body, and is less likely to cause leakage or discomfort.

本実施形態の失禁パッド１について更に詳細に説明する。
本実施形態においては、図１に示すように、失禁パッド１の表面シート４側に、上述した折り曲げ部として機能する一対の溝９，９に加えて、表面シート４と吸収体２とが一体的に圧密化されて形成された長円形の閉じた溝８が形成されている。一対の溝９，９それぞれは、溝８と繋がっており、平面視において長手方向の外方に向かって凸に湾曲している。一対の溝９，９の間には、前記排泄部対向部が位置している。
これらの溝８，９が形成されていることにより、失禁パッド１の着用時に失禁パッド１が着用者の身体形状に合わせて変形し易くなり、また、排泄された液が失禁パッド１の長手方向に導かれるようになり、吸収体２の全体を使って効率的に液吸収をさせることができる。溝８，９は、例えば公知のエンボス装置を用いて表面シート４側から吸収体２を圧搾することにより形成することができる。 The incontinence pad 1 of this embodiment will be described in more detail.
In the present embodiment, as shown in FIG. 1, in addition to the pair of grooves 9 and 9 functioning as the bent portions described above, the topsheet 4 and the absorber 2 are integrated on the topsheet 4 side of the incontinence pad 1. An oval closed groove 8 is formed which is formed by compaction. Each of the pair of grooves 9 and 9 is connected to the groove 8 and is curved to protrude outward in the longitudinal direction in plan view. Between the pair of grooves 9, the excretory part facing part is located.
By forming these grooves 8 and 9, the incontinence pad 1 can be easily deformed in accordance with the wearer's body shape when the incontinence pad 1 is worn, and the excreted liquid is in the longitudinal direction of the incontinence pad 1. Thus, liquid absorption can be efficiently performed using the entire absorber 2. The grooves 8 and 9 can be formed, for example, by squeezing the absorbent body 2 from the surface sheet 4 side using a known embossing device.

吸収体２は、図３に示すように、中央領域５Ｃに、前側領域５Ａ及び後側領域５Ｂよりも肌当接面側に突出する中高部２１を有している。中高部２１は、吸収体２の厚みを、その長手方向中央部のみ大きくすることにより形成されている。本実施形態では中高部２１は、溝８，９に包囲された領域に形成されており、前記排泄部対向部を含んでいる。また、中高部２１は、固定部３５Ａ，３５Ｂに挟まれた非接合部３５Ｃの形成領域に形成されており、これにより、パッド着用時に、図４に示すように下着の股下部５０の内面５０ａから浮き上がり、前記排泄部対向部に密着する。このように、中高部２１が形成されていることによって、着用時における失禁パッド１の肌当接面と前記排泄部対向部との密着性がより一層高められ、また、着用時に吸収体２がヨレにくくなる。また、本実施形態のように溝９を設けなくても中高部２１そのものによって前側領域５Ａ及び後側領域５Ｂが肌当接面側に屈曲し易くなるので、厚みの境界部を折り曲げ部９として利用することも可能である。   As shown in FIG. 3, the absorbent body 2 has, in the central region 5 </ b> C, a middle-high portion 21 that protrudes toward the skin contact surface side from the front region 5 </ b> A and the rear region 5 </ b> B. The middle-high portion 21 is formed by increasing the thickness of the absorber 2 only in the central portion in the longitudinal direction. In the present embodiment, the middle-high portion 21 is formed in a region surrounded by the grooves 8 and 9 and includes the excretory portion facing portion. Moreover, the middle-high part 21 is formed in the formation area of the non-joining part 35C sandwiched between the fixing parts 35A and 35B, so that when the pad is worn, the inner surface 50a of the crotch part 50 of the underwear as shown in FIG. Floats up and comes into close contact with the excretory part facing part. Thus, by forming the middle-high part 21, the adhesion between the skin contact surface of the incontinence pad 1 and the excretory part-facing part at the time of wearing is further enhanced, and the absorbent body 2 can be worn at the time of wearing. It becomes difficult to get twisted. Moreover, since the front region 5A and the rear region 5B are easily bent toward the skin contact surface side by the middle and high portions 21 themselves without providing the grooves 9 as in the present embodiment, the thickness boundary portion is used as the bent portion 9. It can also be used.

吸収体２における中高部２１の厚みをＴ１、吸収体２における中高部２１以外の部分（中高部２１よりも厚みの小さい部分）の厚みをＴ２とした場合、Ｔ１とＴ２との比（Ｔ１／Ｔ２）は、好ましくは１．５〜６、更に好ましくは２〜４である。   When the thickness of the middle-high portion 21 in the absorber 2 is T1, and the thickness of the portion other than the middle-high portion 21 (the portion having a smaller thickness than the middle-high portion 21) is T2, the ratio between T1 and T2 (T1 / T2) is preferably 1.5-6, more preferably 2-4.

失禁パッド１における各部の形成材料について説明すると、吸収体２、第１裏面シート３、表面シート４及び弾性部材６としては、それぞれ、従来のこの種の吸収性物品において用いられているものを特に制限なく用いることができる。
吸収体２としては、例えば、パルプ繊維等の繊維集合体に必要に応じ吸収性ポリマーを含有させたものを用いることができる。吸収体２は、ティッシュペーパー等の紙や各種不織布等の被覆シートで被覆されていても良い。また、第１裏面シート３としては、例えば透湿性を有しない樹脂フィルムや、微細孔を有し透湿性を有する樹脂フィルム、撥水不織布等の不織布、あるいはこれらを適宜貼り合わせてなる複合シート等を用いることができる。また、表面シート４としては、例えば不織布や開孔フィルム等の各種液透過性のシート材を用いることができる。また、弾性部材６の構成材料としては、例えばポリオレフィン類、ポリウレタン類及びこれらの共重合体、又は天然ゴム等からなる弾性材料等を用いることができる。 The material for forming each part of the incontinence pad 1 will be described. As the absorbent body 2, the first back sheet 3, the top sheet 4, and the elastic member 6, those used in this type of conventional absorbent article are particularly used. Can be used without limitation.
As the absorbent body 2, for example, a fiber aggregate such as pulp fiber containing an absorbent polymer as necessary can be used. The absorbent body 2 may be coated with a cover sheet such as paper such as tissue paper or various non-woven fabrics. Moreover, as the 1st back surface sheet 3, for example, the resin film which does not have moisture permeability, the resin film which has micropores and moisture permeability, nonwoven fabrics, such as a water-repellent nonwoven fabric, or the composite sheet formed by bonding together these suitably Can be used. Moreover, as the surface sheet 4, various liquid-permeable sheet materials, such as a nonwoven fabric and an apertured film, can be used, for example. Moreover, as a constituent material of the elastic member 6, for example, an elastic material made of polyolefins, polyurethanes and copolymers thereof, natural rubber, or the like can be used.

本実施形態の失禁パッド１は、上述したように、下着の股下部５０の内面５０ａに固定手段７を介して固定した状態で着用されることで、非接合部３５Ｃの形成領域（中央領域５Ｃ）が該内面５０ａから浮き上がり（図４参照）、該形成領域の肌当接面側が着用者の排泄部対向部に常に密着する。このため、本実施形態の失禁パッド１は、身体に対する追従性に優れ密着性が高く、漏れや違和感を生じ難い。
また、吸収体２に中高部２１が形成されている場合には、着用時における失禁パッド１の肌当接面と前記排泄部対向部との密着性がより一層高められると共に、着用時に吸収体２がヨレにくくなるため、失禁パッド１の身体に対するフィット性が一層高められる。 As described above, the incontinence pad 1 of the present embodiment is worn in a state of being fixed to the inner surface 50a of the crotch part 50 of the underwear via the fixing means 7, thereby forming a non-joint portion 35C formation region (central region 5C). ) Floats up from the inner surface 50a (see FIG. 4), and the skin contact surface side of the formation region always comes into close contact with the wearer's excretory part facing part. For this reason, the incontinence pad 1 of this embodiment is excellent in followability with respect to the body, has high adhesion, and is less likely to cause leakage or discomfort.
Moreover, when the middle-high part 21 is formed in the absorber 2, while the adhesiveness of the skin contact surface of the incontinence pad 1 at the time of wear and the said excretion part opposing part is improved further, an absorber is used at the time of wear Since 2 becomes difficult to twist, the fit of the incontinence pad 1 to the body is further enhanced.

本発明の吸収性物品は、上述した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、前記実施形態では、弾性部材６は、非接合部３５Ｃの形成領域の長手方向左右両側縁部に配されていたが、該形成領域の幅方向中央部に配しても良く、該形成領域の略全域に配しても良い。
また、前記実施形態では、弾性部材６は、第１裏面シート３と第２裏面シート５との間における該第１裏面シート３の非肌当接面側に配されていたが、非接合部３５Ｃの形成領域に配されていれば良く、表面シート４と吸収体２との間でも良く、吸収体２と第１裏面シート３との間でも良い。尚、上述したように、弾性部材６は第２裏面シート５には配設されない。 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, in the above-described embodiment, the elastic member 6 is disposed on the left and right side edges in the longitudinal direction of the formation region of the non-joint portion 35C, but may be disposed in the center in the width direction of the formation region. You may distribute | arrange substantially the whole area | region.
Moreover, in the said embodiment, although the elastic member 6 was distribute | arranged to the non-skin contact surface side of this 1st back surface sheet 3 between the 1st back surface sheet 3 and the 2nd back surface sheet 5, it is a non-joining part. What is necessary is just to be distribute | arranged to the formation area of 35C, and may be between the surface sheet 4 and the absorber 2, and may be between the absorber 2 and the 1st back surface sheet 3. As described above, the elastic member 6 is not disposed on the second back sheet 5.

また、前記実施形態では、固定手段７は、第２裏面シート５の非肌当接面側の長手方向前後端部（前側領域５Ａ、後側領域５Ｂ）のみに配されていたが、これら前後端部に加えて、これら前後端部に挟まれた領域（中央領域５Ｃ）に配されていても良い。
また、固定手段７は、前記実施形態では粘着剤を塗布することにより形成された粘着部であったが、メカニカルファスナーのオス材等から形成されていても良い。 Moreover, in the said embodiment, although the fixing means 7 was distribute | arranged only to the longitudinal direction front-and-rear end part (front side area | region 5A, rear side area | region 5B) of the non-skin contact surface side of the 2nd back surface sheet 5, In addition to the end portions, they may be arranged in a region (central region 5C) sandwiched between these front and rear end portions.
Moreover, although the fixing means 7 was the adhesive part formed by apply | coating an adhesive in the said embodiment, you may be formed from the male material etc. of the mechanical fastener.

また、前記実施形態では、中高部２１は、吸収体２の厚みを、その長手方向中央部のみ大きくすることにより形成されていたが、下層吸収体の上に上層吸収体を積層することにより形成されていても良い。
また、前記実施形態では、本発明の吸収性物品の適用例の一つとして失禁パッドを挙げたが、例えば生理用ナプキン、パンティライナー、おりものシート等にも適用できる。 Moreover, in the said embodiment, although the middle-high part 21 was formed by enlarging the thickness of the absorber 2 only in the longitudinal direction center part, it forms by laminating | stacking an upper layer absorber on a lower layer absorber. May be.
Moreover, in the said embodiment, although the incontinence pad was mentioned as one of the examples of application of the absorbent article of this invention, For example, it can apply also to a sanitary napkin, a panty liner, a cage sheet, etc.

図１は、本発明の吸収性物品の一実施形態である失禁パッドの肌当接面側（表面シート側）を示す平面図である。FIG. 1 is a plan view showing a skin contact surface side (surface sheet side) of an incontinence pad that is an embodiment of the absorbent article of the present invention. 図２は、図１に示す失禁パッドの非肌当接面側（第２裏面シート側）を示す平面図である。FIG. 2 is a plan view showing the non-skin contact surface side (second back sheet side) of the incontinence pad shown in FIG. 図３は、図１のＩ−Ｉ線断面を模式的に示す縦断面図である。FIG. 3 is a longitudinal sectional view schematically showing a cross section taken along the line II of FIG. 図４は、図１に示す失禁パッドの使用状態を示す図３相当図である。FIG. 4 is a view corresponding to FIG. 3 showing a use state of the incontinence pad shown in FIG.

符号の説明Explanation of symbols

１ 失禁パッド
２ 吸収体
２１ 中高部
３ 第１裏面シート
４ 表面シート
５ 第２裏面シート
５Ａ 前側領域（第２裏面シートの長手方向前端部）
５ａ 第２裏面シートの長手方向前端
５Ｂ 後側領域（第２裏面シートの長手方向後端部）
５ｂ 第２裏面シートの長手方向後端
５Ｃ 中央領域
６ 弾性部材
７ 固定手段
８ 溝
９ 溝（折り曲げ部）
３５Ａ，３５Ｂ 固定部
３５Ｃ 非接合部
５０ 下着の股下部
５０ａ 下着の股下部の内面（肌当接面） DESCRIPTION OF SYMBOLS 1 Incontinence pad 2 Absorber 21 Middle-high part 3 1st back surface sheet 4 Top sheet 5 2nd back surface sheet 5A Front side area | region (longitudinal front end part of 2nd back surface sheet)
5a Longitudinal front end 5B of second back sheet Rear region (longitudinal rear end of second back sheet)
5b Longitudinal rear end 5C of second back sheet 6 Central region 6 Elastic member 7 Fixing means 8 Groove 9 Groove (folded portion)
35A, 35B Fixed part 35C Non-joint part 50 Underwear crotch part 50a Inner crotch inner surface (skin contact surface)

Claims (2)

液保持性の吸収体と、その非肌当接面側に配された第１裏面シートとを有し、肌当接面側へ屈曲させて長手方向に沿う前側領域、中央領域及び後側領域を形成する契機となる折り曲げ部を有する縦長の吸収性物品であって、
第１裏面シートの非肌当接面側に第２裏面シートが配されており、第２裏面シートは、その長手方向前後端部それぞれが第１裏面シートに固定されて固定部を形成しており、これらの固定部の間に位置する第１裏面シートと第２裏面シートとの間は、互いに接合されずに非接合部を形成しており、該非接合部は、該固定部の間に位置する第１裏面シートと第２裏面シートとの間の全幅に亘って形成されており、
前記固定部は、第２裏面シートの長手方向前後端それぞれから長手方向の内方に該第２裏面シートの長手方向の全長の１０〜３５％以内の特定領域に、該特定領域の全幅に亘って形成されており、
前記非接合部の形成領域における第１裏面シート側には、弾性部材がその伸縮方向を前記吸収性物品の長手方向に一致させて伸長状態で配され、
第２裏面シートにおける非肌当接面側の前記前側領域及び前記後側領域それぞれに、前記吸収性物品を着衣に固定する平面視において矩形形状の固定手段が、その長手方向を前記吸収体の幅方向に一致させて配されており、且つ、該固定手段は前記特定領域のみに配されている吸収性物品。 A front region, a central region, and a rear region having a liquid-retaining absorbent body and a first back sheet disposed on the non-skin contact surface side, bent toward the skin contact surface side, and along the longitudinal direction A vertically long absorbent article having a bent portion that becomes an opportunity to form
A second back sheet is disposed on the non-skin contact surface side of the first back sheet, and the second back sheet is formed by fixing the front and rear end portions in the longitudinal direction to the first back sheet to form a fixed portion. The first back sheet and the second back sheet positioned between these fixed parts are not joined to each other to form a non-joined part, and the non-joined part is between the fixed parts. Formed over the entire width between the first back sheet and the second back sheet,
The fixing portion extends from the front and rear ends of the second back sheet in the longitudinal direction to a specific area within 10 to 35% of the total length in the longitudinal direction of the second back sheet, over the entire width of the specific area. Formed,
On the first back sheet side in the formation region of the non-joining portion, an elastic member is arranged in an expanded state with its expansion / contraction direction coinciding with the longitudinal direction of the absorbent article,
In the front region and the rear region on the non-skin contact surface side of the second back sheet, the fixing means having a rectangular shape in a plan view for fixing the absorbent article to the clothing has a longitudinal direction of the absorber. An absorbent article that is arranged so as to coincide with the width direction and that the fixing means is arranged only in the specific region . 前記吸収体は、前記中央領域に、前記前側領域及び前記後側領域よりも肌当接面側に突出する中高部を有している請求項１記載の吸収性物品。   The absorptive article according to claim 1 in which said absorber has the middle high part projected in the skin contact surface side rather than said front field and said rear field in said central field.
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