JP2006325639A - Absorbent article - Google Patents

Absorbent article Download PDF

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JP2006325639A
JP2006325639A JP2005149297A JP2005149297A JP2006325639A JP 2006325639 A JP2006325639 A JP 2006325639A JP 2005149297 A JP2005149297 A JP 2005149297A JP 2005149297 A JP2005149297 A JP 2005149297A JP 2006325639 A JP2006325639 A JP 2006325639A
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portion
pair
absorbent
grooves
groove
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JP4484765B2 (en
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Kazumitsu Furuta
Yoko Manabe
Shinsuke Nagahara
一光 古田
陽子 真鍋
進介 長原
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Kao Corp
花王株式会社
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an absorbent article capable of being easily manufactured and with excellent fitting properties because an absorbent body swells toward the skin of a user when the user wears the absorbent article. <P>SOLUTION: The sanitary napkin 1 has an absorbent layer 10 and a leakage preventive layer 11, and a pair of grooves 5 and 5 are formed along both sides in the longitudinal direction of the skin abutting surface of the absorbent layer 10. The pair of grooves 5 are formed in the shape approximately symmetrical to the center line extending in the longitudinal direction and the center line extending in the cross direction of the absorbent layer, and each groove 5 is formed so that the groove is bent to project outward in the cross direction in the center area in the longitudinal direction. Each groove 5 extends from the center area in the longitudinal direction to a front part A and to a rear part C, and has parts 5D and 5E constricted inward in the cross direction in the front and rear of the center area in the longitudinal direction. The napkin 1 is folded along folding lines S1 and S2 extending across the constricted parts 5D and 5E respectively in the cross direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、生理用ナプキン、失禁パッド等の吸収性物品に関する。 The present invention, sanitary napkin, absorbent article of the incontinence pad or the like.

従来、吸収性物品の着用時に、吸収体が着用者の肌側へ隆起し、排泄部との密着性が向上する吸収性物品が知られている。 Conventionally, when worn absorbent article, the absorbent body is raised to the wearer's skin side, adhesion to the excretory part is known an absorbent article improved. この種の吸収性物品は、その肌当接面と着用者の肌との間に隙間が生じることを防ぎ、体液が、吸収性物品の肌当接面又は着用者の肌を伝わって漏れるのを低減することを目的としている。 The absorbent article of this kind prevents a gap from occurring between the skin of the wearer and the skin contact surface, body fluids, from leaking transmitted skin skin contact surface or the wearer of the absorbent article It is intended to be reduced. また、この種の吸収性物品には、吸収体が中高部を有し、着用時における吸収性物品の肌当接面と排泄部との密着性がより高められているものがある。 In addition, the absorbent article of this kind, the absorbent body has a domed section, there is adhesion is further enhanced between the skin contact surface of the absorbent article and the excretory part during wearing.

例えば、特許文献1には、吸収体の中高部の左右両側それぞれに、長手方向に延びる2つの可撓軸が間隔を空けて設けられており、前記2つの可撓軸の間には中高部よりも密度の高い吸収体から形成される支持部が設けられており、着用時には吸収性物品の長手方向中心線に向う圧縮力が作用して、前記支持部が中高部の下に入り込み、中高吸収体が肌側へ向かって隆起する吸収性物品が開示されている。 For example, Patent Document 1, the right and left sides of the domed portion of the absorbent body, the two flexible shaft extending in the longitudinal direction are provided at intervals, domed section between the two flexible shaft and support portion formed from a dense absorber provided than acts compressive force toward the longitudinal centerline of the absorbent article during wear, the support portions enters under the domed section, crowned absorbent articles absorbing body is raised toward the skin side is disclosed.

また、特許文献2には、吸収体の中高部の左右両側に吸収体の長手方向両端縁近傍まで延在する側部エンボスが形成されており、左右の前記エンボスは吸収体の前後において繋がっており、吸収体の長手方向中央部は幅方向外側に向って膨出しており、着用時に、該吸収体の長手方向中央部は、伸縮性を有する立体ギャザーシートの収縮力によって、肌側へ向って隆起する吸収性物品が開示されている。 Further, Patent Document 2, the absorbent body and the longitudinal opposite edges side embossing extending to the vicinity of the left and right sides in the absorber of the domed section is formed of the emboss the left and right connected before and after the absorber cage, longitudinal center of the absorbent body bulges toward the widthwise outer side, when worn, the longitudinally central portion of the absorbent body, the contractile force of the standing gather sheet having stretchability, toward the skin side absorbent article raised Te have been disclosed.

特開2004−154153号公報 JP 2004-154153 JP 特開2001−95843号公報 JP 2001-95843 JP

特許文献1及び特許文献2記載の吸収性物品は共に、中高部を有する吸収体を構成部材としている。 The absorbent article of Patent Document 1 and Patent Document 2 both have a structure member an absorbent body having a domed section. 吸収体に中高部を設けると、吸収体の部材数が増加したり、製造工程数が増加し、吸収性物品の製造の手間及びコストが増える。 When absorber provided domed portion, the number of members or increase of the absorber, increasing the number of manufacturing steps is increased labor and cost of manufacturing the absorbent article. 更に、特許文献2記載の吸収性物品は、立体ギャザーシートの収縮力によって中高部を隆起させており、伸縮性を有する立体ギャザーシートも構成部材となっている。 Furthermore, the absorbent article of Patent Document 2 is to uplift domed section by the contraction force of the standing gather sheet, also standing gather sheet having elasticity and has a configuration member.
また、特許文献2記載の吸収性物品は、立体ギャザーシートの収縮力により、中高吸収体を長手方向内側へ収縮させており、吸収体を幅方向に亘るシワが発生し、体液が該シワに沿って横漏れする可能性がある。 Further, the absorbent article of Patent Document 2, the contractile force of the standing gather sheet, the middle and high absorber which is contracted in the longitudinal direction inside the absorbent body wrinkles occur across the width direction, the body fluid is the wrinkle it is likely to lateral leakage along.

従って、本発明の目的は、着用時に吸収体が肌側へ向って隆起し、優れたフィット性を有しており、製造が容易な吸収性物品を提供することにある。 Accordingly, an object of the present invention, the absorbent body is raised toward the skin side when worn, has excellent fit is that the manufacture provide easy absorbent article.

本発明は、吸収層及び防漏層を備えた吸収性物品であって、前記吸収層における肌当接面側の長手方向両側部に一対の溝が設けられており、一対の該溝は、前記吸収層の長手方向に延びる中心線に対して略線対称な形状を有しており、一対の該溝それぞれは、長手方向中央領域において幅方向外側に凸に湾曲するように形成されており、さらに、一対の前記溝それぞれは、前記長手方向中央領域から前方部または/および後方部に延びており、前記長手方向中央領域の前後の少なくとも一方において幅方向内側に括れた部分を有しており、該括れた部分において幅方向に跨ぐような折り線で折り畳まれている吸収性物品を提供することにより、上記目的を達成したものである。 The present invention provides an absorbent article comprising an absorbent layer and the leak-proof layer is provided with a pair of grooves in the longitudinal direction on both sides of the skin contact surface side of the absorbent layer, a pair of said groove, has a substantially line symmetrical shape with respect to a center line extending in the longitudinal direction of the absorbent layer, each pair of grooves are formed to be curved convexly outward in the width direction in the longitudinal central region , further, each pair of said grooves, the longitudinal and the direction central region extends forward portion or / and the rear portion, has a portion having a constricted inwardly in the width direction in at least one of the front and rear of the longitudinal central region cage by providing an absorbent article being folded about the fold line such as to straddle the width direction in 該括 portion is obtained by achieving the above object.

本発明の吸収性物品によれば、着用時に吸収体が肌側へ向って隆起し、優れたフィット性を有しており、製造が容易である。 According to the absorbent article of the present invention, the absorber is raised toward the skin side when worn, has excellent fit and easy to manufacture.

以下、本発明の吸収性物品の好ましい本実施形態について、図1〜図6を参照しながら説明する。 Hereinafter, the preferred embodiment of the absorbent article of the present invention will be described with reference to FIGS.

本実施形態の吸収性物品は、生理用ナプキン1であり、図1に示すように、液保持性の吸収層10及び液不透過性の防漏層11を備え、実質的に縦長である。 The absorbent article of the present embodiment is a sanitary napkin 1, as shown in FIG. 1, includes an absorbent layer 10 and the liquid-impermeable leak-proof layer 11 of the liquid retaining property, which is substantially longitudinal. ナプキン1における吸収層10は、液透過性の表面シート2及び液保持性の吸収体4とからなり、防漏層11は、液不透過性の裏面シート3からなる。 The absorbent layer 10 in the napkin 1, made from a liquid permeable topsheet 2 and the liquid retentive absorbent member 4 which, leak-proof layer 11 is made of a backsheet 3 liquid-impermeable. 本実施形態のナプキン1における吸収層10を形成している吸収体4のパルプ坪量は300〜600g/m 2であり、比較的大きな坪量となっている。 Pulp basis weight of the absorbent body 4 forming the absorbent layer 10 in the napkin 1 of this embodiment is 300 to 600 g / m 2, and has a relatively large grammage.
本実施形態のナプキン1は、図1に示すように、吸収層10における肌当接面側の長手方向両側部にヒートシール加工によるエンボスである一対の溝5,5が設けられている。 Napkin 1 of this embodiment, as shown in FIG. 1, a pair of grooves 5, 5 are provided is embossed by heat sealing process in the longitudinal direction on both sides of the skin contact surface side of the absorbent layer 10. 一対の該溝5,5は、図2に示すように、吸収層10の長手方向に延びる中心線及び幅方向に延びる中心線それぞれに対して略線対称な形状を有しており、一対の溝5,5それぞれは、長手方向中央領域において幅方向外側に凸に湾曲するように形成されている。 A pair of grooves 5 and 5, as shown in FIG. 2, has a substantially line symmetrical shape with respect to the center line, respectively extending to the center line and the width direction extend in the longitudinal direction of the absorbent layer 10, a pair the grooves 5,5 respectively, are formed to be curved convexly outward in the width direction in the longitudinal central region. さらに、一対の溝5,5それぞれは、前記長手方向中央領域から前方部Aおよび後方部Cに延びており、前記長手方向中央領域の前後において幅方向内側に括れた部分5D,5Eを有している。 Further, each pair of grooves 5 and 5, wherein which the longitudinal central region extends forward portion A and the rear station C, a said longitudinal central portion constricted inwardly in the width direction before and after the region 5D, have 5E ing.
詳述すると、一対の該溝5,5それぞれは、幅方向外側に凸に湾曲している部分5A,5B,5Cが長手方向に3つ連なって形成されている。 More specifically, each pair of grooves 5 and 5, the portion 5A which is curved convexly outward in the width direction, 5B, 5C are formed by continuous three longitudinally. また、本実施形態のナプキン1において、長手方向の真ん中に位置する凸に湾曲している部分5Bは、ナプキン1を長手方向に前方部A、前記長手方向中央領域である排泄部対向部B(着用者の液排泄部に対向配置される排泄部対向領域を幅方向中央に有する部分)及び後方部Cに区分した際の排泄部対向部Bに配されている。 Further, in the napkin 1 of this embodiment, the portion 5B is curved convexly located in the middle of the longitudinal direction, the front portion A of the napkin 1 in the longitudinal direction, the longitudinal central region in which the excretion portion facing section B ( It is arranged in the excretion portion facing section B at the time of dividing the excretion portion facing region which is opposed to the wide portion has a direction middle) and a rear portion C in the liquid excretion portion of the wearer.
更に、本実施形態のナプキン1は、その使用前においては、一対の溝5,5それぞれにおける3つの幅方向外側に凸に湾曲している部分5A,5B,5Cの間に位置する2つの幅方向内側に括れた部分5D,5Eそれぞれを幅方向に跨ぐような折り線S1,S2(図2参照)で、図3に示すように、3つ折りに折り畳まれている。 Furthermore, the napkin 1 of this embodiment, the prior use, the portion 5A which is curved three widthwise outwardly convex in each pair of grooves 5,5, 5B, 2 two widths located between 5C portion 5D having a constricted inwardly, 5E in a folding line S1 so as to straddle the width direction, respectively, S2 (see FIG. 2), as shown in FIG. 3, it is folded in three fold.

本実施形態のナプキン1について、更に説明すると、一対の溝5,5それぞれにより、表面シート2と吸収体4とが接合されている。 The napkin 1 of this embodiment, further will be described by each pair of grooves 5, 5, the topsheet 2 and the absorbent body 4 is joined. 一対の該溝5,5それぞれは、図2に示すように、ナプキン1を長手方向に前方部Aから排泄部対向部Bを通って後方部Cにまで亘って設けられている。 Each pair of grooves 5, 5, as shown in FIG. 2, is provided over to the rearward portion C from the front portion A of the napkin 1 in the longitudinal direction through the excretion portion facing section B. また、一対の溝5,5それぞれは、図4に示すように、ナプキン1の厚み方向に吸収体4の裏面側近傍にまで深く延びて形成されており、排泄された体液が多量であっても、該体液は、肌当接面のみならず該溝5で一旦止められるため、該溝5を通って吸収体4に移動することもできる。 Also, each pair of grooves 5 and 5, as shown in FIG. 4, extends deeply into the back side near the absorbent body 4 in the thickness direction of the napkin 1 is formed by, excreted body fluid a large quantity also, body fluid, because the stopped temporarily in the groove 5 not skin contact surface only, it is also possible to move the absorber 4 through the groove 5.

一対の溝5,5について詳述すると、一対の溝5,5は、図2に示すように、吸収層10の前方部A及び後方部Cそれぞれにおいて、繋がって閉じている。 In detail the pair of grooves 5 and 5, a pair of grooves 5 and 5, as shown in FIG. 2, in the front portion A and the rear section C each absorbing layer 10, are connected closed. そのため、ナプキン1が、着用時に幅方向から圧縮力を受けた場合、幅方向の中央部で長手方向に沿って2つ折りにされることが効果的に防止されている。 Therefore, the napkin 1 is, when subjected to compressive forces from the width direction, to be folded in two along the longitudinal direction at the center in the width direction is effectively prevented when worn.
また、一対の該溝5,5を形成しているシール部は、前方部Aにおいて前方に向って尖った形状を有して繋がっており、且つ後方部Cにおいて後方に向って尖った形状を有して繋がっている。 The seal portion which forms a pair of grooves 5 and 5 are connected with a pointed shape toward the front in the front portion A, and the pointed shape toward the rear in the rear part C It is connected has. そのため、前後方向の溝の幅(長手方向の長さ)が高坪量の吸収体を使用するほど広がってしまい、肌触りを低下させる場合もあったが、本実施形態のナプキン1では高坪量の吸収体4と表面シート2とを、幅の狭いシール部により接合することが可能となり、肌触りを良好に保つことができる。 Therefore, will spread as the width of the longitudinal groove (longitudinal length) uses an absorber of high basis weight, although in some cases to reduce the skin, the napkin 1 of this embodiment Takatsuboryou the absorbent body 4 and the topsheet 2, it is possible to bond the narrow seal portion width, it is possible to keep the skin well.

本実施形態のナプキン1において、前述した一対の溝5,5により囲まれている吸収体4の中央部分は、ナプキン1が着用時に幅方向から圧縮力を受けた場合、肌方向へ向って隆起する隆起部40を形成している。 In the napkin 1 of this embodiment, the central portion of the absorbent body 4 enclosed by a pair of grooves 5 and 5 described above, when the napkin 1 is subjected to compressive forces from the width direction when worn, toward the skin direction ridges forming a ridge 40. 尚、着用前の隆起部40は、隆起しておらず、ほぼ均一な吸収体坪量となっている。 Incidentally, the raised portion 40 of the front wear are not raised, and has a substantially uniform absorbent basis weight.
隆起部40は、図2に示すように、ナプキン1の長手方向に延びる中心線及び幅方向に延びる中心線それぞれに対して略線対称な形状である。 Ridges 40, as shown in FIG. 2, is substantially line symmetric shape with respect to the center line, respectively extending to the center line and the width direction extend in the longitudinal direction of the napkin 1. また、隆起部40は、幅方向両外側に凸に湾曲した部分が、長手方向に3つ連なって形成されており、前方部A、排泄部対向部B及び後方部Cそれぞれに、幅方向両外側に凸に湾曲した前記部分40A,40B,40Cが設けられている。 Also, ridges 40, a portion which is curved in a convex in the width direction outer sides, are formed by three continuous longitudinally forward portion A, the respective discharging part facing portion B and the rear station C, a width direction both the portion 40A which is curved convexly outwardly, 40B, 40C are provided. 前記部分40Aと前記部分40Bとの間、及び前記部分40Bと前記部分40Cとの間には、それぞれ、2つの幅方向内側に括れた部分40D及び40Eが形成されている。 Wherein between the portions 40A and the portion 40B, and between the portion 40B and the portion 40C, respectively, portions 40D and 40E having a constricted two widthwise inward it is formed.

隆起部40において、前記部分40Aの両側縁部は、図2に示すように、一対の溝5,5の前記部分5A,5Aから形成されており、前記部分40Bの両側縁部は、一対の溝5,5の前記部分5B,5Bから形成されており、前記部分40Cの両側縁部は、一対の溝5,5の前記部分5C,5Cから形成されている。 In ridges 40, both side edge portions of the portion 40A, as shown in FIG. 2, the portion 5A of the pair of grooves 5 and 5 are formed from 5A, both edges of the portion 40B is the pair It said portion 5B of the grooves 5 and 5 are formed from 5B, both side edges of the portion 40C is formed from said portion 5C, 5C of the pair of grooves 5 and 5.

本実施形態のナプキン1における隆起部40において、排泄部対向部Bの前記部分40Bの幅W1(長手方向において幅方向に沿った最大幅)は、図2に示すように、前方部A及び後方部Cにおける前記部分40A及び40Cそれぞれの幅W2(長手方向において幅方向に沿った最大幅)よりも広くなっている。 In the raised portion 40 of the napkin 1 of this embodiment, the portion 40B of the width W1 (maximum width along the width direction in the longitudinal direction) of the excretion portion facing section B, as shown in FIG. 2, the front portion A and the rear It is larger than (maximum width along the width direction in the longitudinal direction) the portion 40A and 40C each having a width W2 in part C. また、排泄部対向部Bの前記部分40Bの長手方向に沿った長さL1は、図2に示すように、前方部A及び後方部Cにおける前記部分40A及び40Cそれぞれの長手方向に沿った長さL2よりも長くなっている。 The length L1 along the longitudinal direction of the portion 40B of the excretion portion facing section B, as shown in FIG. 2, the length along the portion 40A and 40C, respectively longitudinally in the front portion A and the rear section C It is longer than the L2.
このような形状を有する隆起部40の前記部分40Bは、ナプキン1の着用時に、着用者の排泄部を長手方向及び幅方向に亘って覆うように当接する。 Such the portion 40B of the ridges 40 having a shape, when worn the napkin 1, it abuts so as to cover over the excretion portion of the wearer in the longitudinal direction and the width direction.

また、本実施形態のナプキン1は、図3に示すように、製品の状態では3つ折りに折り畳まれている。 Moreover, the napkin 1 of this embodiment, as shown in FIG. 3, in the state of the product are folded in three fold. ナプキン1は、その一対の溝5,5の2つの括れた部分5D,5Eそれぞれにおいて、幅方向に跨ぐような折り線S1,S2で折り畳まれるため、折り畳みやすく、且つ該折り線S1,S2によるシワの発生が最小限となるようになされている。 Napkin 1 has two constricted portions 5D of the pair of grooves 5,5, 5E in each, because they are folded in a folding line S1, S2 astride the width direction, due to the folding easier and 該折 Ri lines S1, S2 the occurrence of wrinkles have been made in such a way that a minimum.
ナプキン1を使用する際には、タブテープ8が外され、折り畳まれている前方部A及び後方部Bそれぞれが長手方向外側に開かれる。 When using the napkin 1, the tab tape 8 is removed, respectively the front portion A and the rear section B is folded is opened longitudinally outwardly. このように展開されたナプキン1の隆起部40において、2つの括れた部分40D、40Eそれぞれを幅方向に跨ぐ折り線S1,S2の跡はシワとなって残っている。 In such ridges 40 of the napkin 1 which is expanded, the two constricted portions 40D, fold lines S1 to straddle the respective 40E in the width direction, S2 traces are left become wrinkled.

次に、本実施形態のナプキン1が着用された状態について、以下に説明する。 Next, the state where the napkin 1 of the present embodiment is worn, will be described below.
ナプキン1は、ショーツ等の股下部内側に固定して着用され、ナプキン1の排泄部対向部Bにおける表面シート2の部分は、着用者の排泄部に当接する。 Napkin 1 is worn by fixing the crotch portion inside the shorts or the like, parts of the surface sheet 2 in the excretion portion facing section B of the napkin 1 abuts to the excretory part of the wearer. この際ナプキン1は、図5に示すように、着用者の両太ももの付け根内側により左右から幅方向内側(図5中の矢印の方向)へ圧縮力を受ける。 Here napkin 1, as shown in FIG. 5, subjected to a compressive force from the left and right by the base inner both thighs of the wearer inward in the width direction (direction of the arrow in FIG. 5).
ナプキン1は、左右から幅方向内側へ圧縮力を受けると、隆起部40における2つの括れた部分40D及び40Eそれぞれを幅方向に跨ぐ折り線S1,S2跡のシワを起点に、図5に示すように、表面シート2と共に隆起部40全体が肌側へ向って隆起する。 Napkin 1 receives a compressive force from the lateral inward in the width direction, starting from the wrinkles of the two constricted portions 40D and 40E fold lines S1 to straddle the respective width direction, S2 remains in the raised portion 40, shown in FIG. 5 as such, the entire ridges 40 together with the surface sheet 2 is raised toward the skin side.
更に詳述すると、排泄部対向部Bにおける隆起部40の両側縁部を形成している前記部分5Bにおいて、その幅方向最外側に位置する部分が、幅方向内側に向う圧縮力をいち早く受け止め、該圧縮力を前記溝5の長手方向全体に亘って伝え、隆起部40の隆起を引き起こす。 Further More specifically, in the portion 5B that forms the side edges of the raised portion 40 in the excretion portion facing section B, a portion located in the width direction outermost side, receiving early compressive force toward the inner side in the width direction, conveyed over the compressive forces in the longitudinal direction across the groove 5, it causes a raised ridge 40.
ナプキン1における吸収体4の隆起部40が、肌側へ向って隆起することで、隆起部40Bの上に位置する表面シート2は、着用者の排泄部へ押し当てられ肌と密着する。 It ridges 40 of the absorbent core 4 in the napkin 1, by raised toward the skin side, a surface sheet 2 located on the ridge portion 40B is in close contact with the skin pressed against the excretion portion of the wearer. 更に、長手方向端部では溝が尖った形状で形成されているため、溝の内側は隆起が細くされるため、身体とのフィット性が向上し、溝の外では、隆起による影響を受け難く、吸収体がフラットとなり、液止め効果が高まる利点を有する。 Furthermore, since the longitudinal ends is formed in a shape having a sharp groove, since the inside of the groove ridges are narrow, it improves the fit of the body, outside of the groove, hardly affected by ridges , the absorbent body becomes flat, has the advantage of increasing the liquid stopping effect.

中央部隆起の程度は、ナプキン1を固定するショーツの身体への装着状態によってもことなるが、本発明品では、中央(排泄ポイント)の幅が広がった形状であるため、隆起が従来より高められ、身体とのフィット性が小さい下着の場合であっても、排泄ポイントにナプキンの吸収面を効果的にフィットさせることができる。 The extent of the central portion ridge, different depending worn to shorts body to fix the napkin 1, but the present invention product, the center for the width of the (excretion points) is widened shape, elevated ridge conventionally is, even when the undergarment fit of the body is small, it is possible to effectively fit the absorbing surface of the napkin to excretion point.

隆起部40が隆起した状態において、吸収体4の隆起部40における表面側及び裏面側は共に、図6に示すように、肌側へ向って凸に湾曲している。 In a state where the raised portion 40 is raised, both the first surface and the second surface of the ridges 40 of the absorbent body 4, as shown in FIG. 6, it is curved convexly toward the skin side.
また、隆起部40が肌方向へ向って隆起した際、隆起部40の上に位置する表面シート2も、図6に示すように、肌側に向って凸に湾曲し、2つの括れた部分40D、40Eそれぞれにおける折り線S1,S2跡のシワが伸ばされ実質的に消失する。 Further, when the ridges 40 are raised toward the skin direction, the surface sheet 2 located on the ridges 40 also, as shown in FIG. 6, convexly curved toward the skin side, the two constricted portions 40D, folding line S1 in each 40E, S2 trace of wrinkles is substantially disappeared extended.

本実施形態のナプキン1について、更に説明すると、図2に示すように、一対の溝5,5それぞれの幅方向外側に、幅方向内側に凸に湾曲している溝6が設けられている。 The napkin 1 of this embodiment, further, as illustrated in FIGS. 2, toward the outside in the width direction of each of the pair of grooves 5 and 5, the groove 6 is provided which is curved in a convex inward in the width direction. 一対の該溝6,6それぞれは、ヒートシール加工によるエンボスにより形成されており、該溝6により、表面シート2と吸収体4と、更に、後述する内部シート7とが接合されている。 Each pair of grooves 6 and 6 are formed by embossing by heat sealing process, the groove 6, the topsheet 2 and the absorbent body 4, further an inner sheet 7 to be described later is joined. 一対の該溝6,6それぞれは、その長さ(ナプキン1の長手方向に沿った長さ)が前記溝5と略同じであり、また、図4に示すように、ナプキン1の厚み方向に吸収体4の中程まで延びている。 Each pair of grooves 6, 6 is substantially the same in length (length along the longitudinal direction of the napkin 1) and the groove 5, and as shown in FIG. 4, in the thickness direction of the napkin 1 and it extends to the middle of the absorbent core 4.

本実施形態のナプキン1の吸収体4の両側部裏面側には、図4に示すように、撥水性の一対の内部シート7、7が配されている。 On both sides the rear surface side of the absorbent body 4 of the napkin 1 of this embodiment, as shown in FIG. 4, a pair of inner sheets 7,7 repellent is disposed. 各内部シート7の幅方向外側の側部は、吸収体4の側縁から延出し、吸収体4と表面シート2の間に巻き上げられ、肌当接面側の長手方向の両側部において表面シート2及び吸収体4と前記溝6によって接合されている。 Widthwise outer side of each inner sheet 7 extends from the side edge of the absorbent core 4, wound between the absorbent member 4 and the topsheet 2, the surface on both sides of the longitudinal direction of the skin contact surface side sheet It is joined to the 2 and the absorber 4 by the groove 6. 更に、吸収体4は、非肌当接面側に裏面シート3が配されることによって、撥水性の内部シート7と裏面シート3により実質的に包まれており、吸収された体液が外に漏れることが防がれている。 Furthermore, the absorbent body 4, by the back sheet 3 arranged on the non-skin contact surface side, and wrapped in substantially the inner sheet 7 and the backsheet 3 of the water repellency, the absorbed body fluid outside it has been prevented from leaking.
また、内部シート7は、ナプキン1の裏面側の長手方向の両側部において、図4に示すように、吸収体4及び表面シート2と接着剤により接合されている。 Further, the inner sheet 7, at both sides of the longitudinal back side of the napkin 1, as shown in FIG. 4, are joined by an adhesive and the absorbent body 4 and the topsheet 2. なお、撥水性の内部シート7を用いる代わりに、吸収体の両側縁それぞれから裏面シート3及び表面シート2を幅方向外側に延出し接合したフラップ部を形成し、防漏効果を高めることもできる。 Instead of using the inner sheet 7 of water-repellent, forming a flap portion which extends out joining backsheet 3 and the topsheet 2 in the transverse direction outward from both side edges respectively of the absorbent body, it is possible to increase the leakage preventing effect .

本実施形態のナプキン1について、更にまた説明すると、表面シート2の長手方向の両側部それぞれは、吸収体4の両側縁から延出し、内部シート7と裏面シート3との間に巻き下げられ、裏面シート3と接合されている。 The napkin 1 of this embodiment, further also be described, each both side portions in the longitudinal direction of the surface sheet 2, extend from both side edges of the absorbent core 4 is lowered wound between the inner sheet 7 and the backsheet 3, It is joined to the backsheet 3. また、表面シート2における隆起部40の上に位置する部分は、排泄された体液の透過性を良好にする観点から、複数の孔が設けられていることが好ましい。 Also, the portion located above the ridges 40 of the surface sheet 2, from the viewpoint of improving the permeability of the excreted body fluid, it is preferable that the plurality of holes are formed.
表面シート2及び裏面シート3の長手方向の両端部それぞれは、吸収体4の長手方向の両端縁から延出し、ヒートシール等の公知の接合法により接合されている。 Each longitudinal ends of the topsheet 2 and the backsheet 3 extends from the longitudinal end edges of the absorbent body 4 are joined by a known bonding method such as heat sealing.
また、裏面シート3の外面には、ナプキン1を着用者のショーツ等に固定するためのズレ止め材が塗布されている。 Further, on the outer surface of the backsheet 3, stopping the disagreement material for fixing the napkin 1 to the wearer's panties or the like is applied. 該ズレ止め材は、剥離紙によって被覆されており、使用時まで保護されている。 The displacement preventing member is covered by the release paper, it is protected until use.

本実施形態のナプキン1において、排泄部対向部Bにおける隆起部40の前記部分40Bの長手方向に沿った長さL1は、排泄部を長手方向に覆うように当接する観点から、50〜100mmが好ましく、60〜80mmであることがより好ましい。 In the napkin 1 of this embodiment, the length L1 along the longitudinal direction of the portion 40B of the ridges 40 at the excretory part facing portion B, from the viewpoint abutting so as to cover the excretion portion in the longitudinal direction, is 50~100mm preferably, and more preferably 60 to 80 mm. また、前方部A及び後方部Cにおける隆起部40の前記部分40A及び40Cそれぞれの長手方向に沿った長さL2は、20〜70mmが好ましく、30〜60mmであることがより好ましい。 Further, the partial 40A and 40C length L2 along the respective longitudinal ridges 40 in the front section A and the rear section C is preferably 20 to 70 mm, more preferably 30 to 60 mm. 長手方向に沿った長さは、長手方向に平行な方向に沿った長さであり、湾曲した曲線に沿った長さではない。 Length along the longitudinal direction is a length along the direction parallel to the longitudinal direction, not the length along the curved curves.
排泄部対向部Bにおける隆起部40の前記部分40Bの幅W1(長手方向において幅方向に沿った最大幅)は、排泄部を幅方向に覆うように当接する観点から、20〜70mmが好ましく、30〜60mmであることがより好ましい。 The width of the portion 40B of the ridges 40 at the excretory part facing portion B W1 (maximum width along the width direction in the longitudinal direction), from the viewpoint abutting so as to cover the excretion portion in the width direction, 20 to 70 mm are preferred, and more preferably from 30~60mm. また、前方部A及び後方部Cにおける隆起部40の前記部分40A及び40Cの幅W2(長手方向において幅方向に沿った最大幅)それぞれは、10〜60mmが好ましく、20〜50mmであることがより好ましい。 Further, it is each of the portions 40A and 40C of the width W2 of the raised portion 40 in the front section A and the rear section C (maximum width along the width direction in the longitudinal direction), 10 to 60 mm is preferable, 20 to 50 mm more preferable. 幅方向に沿った幅とは、幅方向に平行な方向に沿った幅である(以下同じ)。 Width is along the width direction, a width along the direction parallel to the width direction (the same applies hereinafter).
隆起部40の2つの幅方向内側に括れた部分40D及び40Eそれぞれの幅W3(長手方向において幅方向に沿った最小幅)は、10〜60mmが好ましく、20〜50mmあることがより好ましい。 Two widthwise inwardly constricted portion 40D and 40E of the respective widths of the ridges 40 W3 (minimum width along the width direction in the longitudinal direction) is preferably 10 to 60 mm, more preferably in 20 to 50 mm.
排泄部対向部Bにおける一対の溝5,5それぞれの前記部分5Bの幅方向最外側の部分と前記溝6との間を、幅方向に沿って測った長さT1(図2参照)は、2〜15mmが好ましく、5〜10mmであることがより好ましい。 Between the widthwise outermost portion of the portion 5B of each pair of grooves 5 and 5 in the excretion portion facing section B and the groove 6, the length measured along the width direction T1 (see FIG. 2) 2~15mm preferably, and more preferably 5 to 10 mm.
前方部A及び後方部Cにおける溝5の前記部分5A及び5Cそれぞれの幅方向最外側の部分と前記溝6との間を、幅方向に沿って測った長さT2(図2参照)は、2〜20mmが好ましく、5〜15mmであることがより好ましい。 Between the portions 5A and 5C, respectively in the width direction outermost portion of the groove 5 in the front section A and the rear section C and the grooves 6, the length measured along the width direction T2 (see FIG. 2) 2~20mm preferably, and more preferably 5 to 15 mm.

本実施形態のナプキン1おいて、吸収体4のパルプ材料としては、従来の吸収性物品等において用いられている各種のパルプ材料を用いることができるが、特に針葉樹パルプ、化学処理された合成パルプ、セルローストウのような長繊維が好ましい。 Napkin 1 Oite of this embodiment, as the pulp material of the absorbent core 4, it is possible to use various pulp materials used in conventional absorbent articles such as, in particular softwood pulp, chemically treated synthetic pulp , long fibers such as cellulose tow is preferred. また、吸収体4の形成材料として、パルプ材料の他に、高分子吸収ポリマー、ポリエステルやポリプロピレン製の合成繊維、熱融着性繊維、レーヨンを用いることもできる。 Further, as the material of the absorber 4, in addition to the pulp material it can be used polymers absorbent polymers, polyesters and polypropylene synthetic fiber, heat fusible fiber, the rayon. 吸収体4の形成材料として、パルプ材料及びその他の前記材料を混合して用いることも好ましい。 As the material of the absorbent core 4, it is also preferable to use a mixture of pulp material and other of said materials.
吸収体4の坪量は、前述した通りであるが、吸収体が肌側に良好に隆起すると共に吸収体の柔軟性を確保する観点から、200〜800g/m 2であることが好ましく、300〜600g/m 2であることが更に好ましい。 The basis weight of the absorbent body 4 is as described above, from the viewpoint of the absorber to ensure the flexibility of the absorbent body as well as good raised skin side is preferably 200 to 800 g / m 2, 300 further preferably ~600g / m 2.
内部シート7は、従来の吸収性物品等において用いられている各種の撥水性を有するシート材料を用いることができるが、特にポリエチレンシート、ポリエチレンラミネート紙、SMS不織布が好ましい。 The inner sheet 7, it is possible to use sheet materials having various water repellency to that used in conventional absorbent articles such as, in particular polyethylene sheet, a polyethylene laminated paper, SMS nonwoven fabric is preferred.
表面シート2及び裏面シート3の形成材料としては、従来の吸収性物品等において用いられている各種のシート材料を特に制限なく用いることができる。 As the material for forming the topsheet 2 and the backsheet 3, it may be used without particular limitation various sheet materials used in conventional absorbent articles, and the like.

上述した本実施形態のナプキン1によれば、吸収層10に一対の溝5,5を設けることで、着用時に吸収層10を肌側へ向って隆起させることができる。 According to the napkin 1 of this embodiment described above, the absorbent layer 10 by providing the pair of grooves 5 and 5, it can be raised toward the absorbent layer 10 to the skin side when worn. このような構成のナプキン1は、容易に製造される。 Napkin 1 having such a structure are readily prepared.
また、ナプキン1の吸収体4の坪量が大きく且つ一対の溝5,5の前後端部が閉じて繋がっているため、隆起部40がより隆起し易い構成となっている。 Further, since the front and rear ends of the absorbent body 4 having a basis weight of larger and a pair of grooves 5, 5 of the napkin 1 are connected closed, the ridges 40 becomes more raised easily configured.
また、吸収体4は、その長手方向の両側部及び裏面側において、内部シート8によって一体的に包まれているため、該隆起部40が更に隆起し易い構成となっている。 Furthermore, the absorbent body 4, at both sides and the back surface side in the longitudinal direction, because it is wrapped integrally by the inner sheet 8, the raised portion 40 has a further raised easily configured.
また、一対の幅方向内側に凸に湾曲している溝6,6が設けられているため、ナプキン1が局部的に幅方向からの圧縮力を受けた場合、該局部に加わった前記圧縮力を前記溝6の長手方向全体に分散し、幅方向外側に凸に湾曲している溝5へ伝えることにより、安定的に隆起部40が得られる。 Further, since the grooves 6,6 are curved in a pair of widthwise inwardly convex is provided, if the napkin 1 is subjected to compressive forces from locally width direction, the compressive force applied to the 該局 portion was dispersed in the longitudinal direction across the groove 6, by transferring into the groove 5 is curved in a convex outward in the width direction stably ridge 40 is obtained.
このように、一対の前記溝5,5に加えて、該溝それぞれの幅方向外側に前記溝6が設けられているため、ナプキン1が受ける幅方向内側への圧縮力が左右均等でなくても、隆起部40は良好に肌側へ向って隆起する。 Thus, in addition to the pair of grooves 5 and 5, since the grooves 6 in the widthwise outer side of each groove is provided, the compression force in the width direction inside the napkin 1 is subjected is not uniform lateral also, it ridges 40 are raised by well toward the skin side.
更に、隆起部40は、一対の溝5,5により周囲が囲まれているため、その面形状の形状安定性が高められており、着用中において、その隆起した形状が安定的に維持される。 Furthermore, the ridges 40, because it is surrounded the periphery by a pair of grooves 5, 5, and enhanced dimensional stability of the surface shape is, during wearing, the raised shape is stably maintained .
ナプキン1が展開された際に折り線S1,S2跡に形成されるシワは、着用時には隆起部40の隆起によって実質的に消滅するため、ナプキン1の表面に排泄された体液が該シワを伝わって、幅方向へ漏れる恐れはない。 Wrinkles napkin 1 is formed on the fold lines S1, S2 remains when it is deployed, substantially to disappear, body fluid that is excreted onto the surface of the napkin 1 is transmitted to the wrinkles by the raised ridges 40 when worn Te, there is no possibility that the leak in the width direction.

本発明の吸収性物品は、前述した実施形態に制限されることなく、本発明の趣旨を逸脱しない限り適宜変更が可能である。 The absorbent article of the present invention is not limited to the embodiments described above, and can be suitably changed without departing from the scope of the present invention.
例えば、本実施形態における一対の溝5,5それぞれは、前記長手方向中央領域から前方部A及び後方部Cに延びていたが、どちらか一方のみに延びていても良い。 For example, each of the pair of grooves 5 and 5 in the present embodiment, wherein at the longitudinally central region and extended to the front portion A and the rear station C, a may extend to only one.
また、一対の溝5,5それぞれは、前記長手方向中央領域の前後両方において幅方向内側に括れた部分を有していたが、少なくとも一方において幅方向内側に括れた部分を有していれば良い。 Also, each pair of grooves 5 and 5, wherein at the longitudinally central region had a portion having a constricted inwardly in the width direction at both before and after, as long as it has a portion having a constricted inwardly in the width direction in at least one good. この場合、該括れた部分を有していない長手方向の端部において、本物品が幅方向に跨ぐような折り線で折り畳まれていることも好ましい。 In this case, in the longitudinal direction of the end having no 該括 part, it is also preferred that the article is folded about the fold line such as to straddle the width direction.
また、一対の溝5,5それぞれは、本実施形態においてヒートシール加工により形成されていたが、超音波シール加工等の他の圧着手段を用いて形成しても良い。 Also, each pair of grooves 5 and 5, in the present embodiment had been formed by heat sealing process, may be formed by using other bonding means such as ultrasonic sealing process.
更に、吸収体4は、本実施形態においてパルプのみから形成されていたが、粒状又は層状の高吸収性ポリマーが含まれていても良い。 Furthermore, the absorbent body 4 is in this embodiment was formed of only pulp may contain superabsorbent polymer particulate or layered.
本発明の吸収性物品は、生理用ナプキンであっても良いが、失禁パッド等であっても良い。 The absorbent article of the present invention may be a sanitary napkin, but may be incontinent pads and the like.

図1は、本発明の生理用ナプキンの本実施形態の開いた状態を示す斜視図である。 Figure 1 is a perspective view showing an open state of the embodiment of the sanitary napkin of the present invention. 図2は、図2に示す生理用ナプキンの平面図である。 Figure 2 is a plan view of a sanitary napkin shown in FIG. 図3は、本発明の生理用ナプキンの本実施形態の3つに折り畳まれた状態を示す斜視図である。 Figure 3 is a perspective view showing a folded state into three in this embodiment of the sanitary napkin of the present invention. 図4は、図2のX−X線拡大断面図である。 Figure 4 is a line X-X enlarged sectional view of FIG. 図5は、図2に示す生理用ナプキンが装着時に幅方向から圧縮力を受けた状態を示す斜視図である。 Figure 5 is a perspective view showing a state in which the sanitary napkin shown in FIG. 2 receives the compressive force in the width direction when worn. 図6は、図5のY−Y線拡大断面図である。 Figure 6 is a line Y-Y enlarged sectional view of FIG.

符号の説明 DESCRIPTION OF SYMBOLS

1 生理用ナプキン(吸収性物品) 1 sanitary napkin (absorbent article)
10 吸収層 11 防漏層2 表面シート3 裏面シート4 吸収体 40 隆起部5 溝6 幅方向外側に凹に湾曲している溝7 内部シート8 タブテープA 前方部B 排泄部対向部C 後方部S 折り線 10 absorbent layer 11 leak-barrier layer 2 topsheet 3 grooves 7 inside seat 8 to backsheet 4 absorber 40 ridges 5 groove 6 transverse direction outer side is concavely curved tab tape A front portion B excretory part facing portion C rear portion S fold line

Claims (5)

  1. 吸収層及び防漏層を備えた吸収性物品であって、 An absorbent article comprising an absorbent layer and the leak-barrier layer,
    前記吸収層における肌当接面側の長手方向両側部に一対の溝が設けられており、一対の該溝は、前記吸収層の長手方向に延びる中心線に対して略線対称な形状を有しており、一対の該溝それぞれは、長手方向中央領域において幅方向外側に凸に湾曲するように形成されており、さらに、一対の前記溝それぞれは、前記長手方向中央領域から前方部または/および後方部に延びており、前記長手方向中央領域の前後の少なくとも一方において幅方向内側に括れた部分を有しており、該括れた部分において幅方向に跨ぐような折り線で折り畳まれている吸収性物品。 Is provided with a pair of grooves in the longitudinal direction on both sides of the skin contact surface side of the absorbent layer, a pair of said groove, have a substantially line symmetrical shape with respect to a center line extending in the longitudinal direction of the absorbent layer is, each of the pair of the groove and are formed to be curved convexly outward in the width direction in the longitudinal central region, and further, each pair of said grooves, the front portion from the longitudinal central region or / and extend rearward portion, said has a portion having a constricted inwardly in the width direction in at least one of the front and rear longitudinal central region, are folded about the fold line such as to straddle the width direction in 該括 portion the absorbent article.
  2. 一対の前記溝それぞれの幅方向外側に、幅方向内側に凸に湾曲している溝が設けられている請求項1記載の吸収性物品。 The absorbent article of the pair of outside in the width direction of the groove, respectively, according to claim 1, wherein the groove is curved in a convex inwardly in the width direction are provided.
  3. 前記吸収層を形成している吸収体のパルプ坪量は300〜600g/m 2である請求項1又は2記載の吸収性物品。 Pulp basis weight of the absorbent body which forms the absorber layer absorbent article according to claim 1 or 2, wherein a 300 to 600 g / m 2.
  4. 一対の前記溝は、前記吸収層の前方部及び後方部それぞれにおいて、繋がって閉じている請求項1〜3の何れかに記載の吸収性物品。 A pair of said grooves, in each of the front portion and the rear portion of the absorbent layer, the absorbent article according to claim 1 are connected closed.
  5. 一対の前記溝は、前方に向って尖った形状を有しており且つ後方に向って尖った形状を有している請求項4記載の吸収性物品。 A pair of said grooves, the absorbent article according to claim 4 wherein having a pointed shape toward the rear and has a pointed shape toward the front.

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