JP2007195665A - Absorbent article - Google Patents

Absorbent article Download PDF

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JP2007195665A
JP2007195665A JP2006016194A JP2006016194A JP2007195665A JP 2007195665 A JP2007195665 A JP 2007195665A JP 2006016194 A JP2006016194 A JP 2006016194A JP 2006016194 A JP2006016194 A JP 2006016194A JP 2007195665 A JP2007195665 A JP 2007195665A
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groove
rear
front
right
left
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JP4757039B2 (en )
JP2007195665A5 (en )
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Kazumitsu Furuta
Tetsuya Kusakawa
Yoko Manabe
Shinsuke Nagahara
一光 古田
陽子 真鍋
哲哉 草川
進介 長原
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Kao Corp
花王株式会社
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<P>PROBLEM TO BE SOLVED: To provide an absorbent article having superior leakage prevention property in the width direction by grooves provided in a skin abutment side of an absorbent layer and having high stability of the surface shape of the absorbent layer when being worn. <P>SOLUTION: This absorbent article 1 has an absorbent layer 10 and a leakage prevention layer; the skin abutment face side in the absorbent layer 10 is provided with a left groove 51, a right groove 52, a front groove 53 and a rear groove 54 in a width-directional left side, a width-directional right side, a longitudinal front side and a longitudinal rear side respectively in the plan view; the left groove 51 and the right groove 52 are projectingly curved in the width directional outward respectively; the front groove 53 and the rear groove 54 are projectingly curved in the longitudinally outward respectively; the left groove 51 and the front groove 53, the left groove 51 and the rear groove 54, the right groove 52 and the front groove 53, and the right groove 52 and the rear groove 54 are separated from each other respectively; the front end portion 51A of the left groove 51 and the front end portion 52A of the right groove 52 are positioned in longitudinally front sides of the rear end portions 53A and 53B of the front groove 53; and the rear end portion 51B of the left groove 51 and the rear end portion 52B of the right groove 52 are positioned in longitudinally rear sides of the front end portions 54B and 54B of the rear groove 54. <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、吸収性物品においては、液透過性の表面シート及び液保持性の吸収体からなる吸収層の肌当接面側における左側、右側、前側及び後側に、それぞれ離間した湾曲形状のエンボス溝を設けたものがある。 Conventionally, in the absorbent article, the left side in the skin facing side of the absorbent layer made of liquid-permeable topsheet and a liquid retentive absorbent body, right to the front and rear sides, the embossed grooves each spaced curved shape it is followed by a provided.
例えば、下記特許文献1記載の吸収性物品においては、吸収層の肌当接面側における左側及び右側にそれぞれ幅方向外側に又は幅方向内側に凸に湾曲したエンボス溝が設けられ、前側及び後側にそれぞれ長手方向外側に凸に湾曲したエンボス溝が設けられている。 For example, in the absorbent article of Patent Document 1, the embossed groove is curved convexly in each widthwise outer left and right or widthwise inwardly at the skin contact surface side of the absorbent layer is provided, the front and rear embossed groove is provided with convexly curved in the longitudinal direction outside the respective side.

特開平10−225480号公報 JP 10-225480 discloses

しかし、特許文献1記載の吸収性物品においては、左側の溝と前側の溝及び後側の溝それぞれとの間、並びに右側の溝と前側の溝及び後側の溝それぞれとの間が大きく離間しており、幅方向に漏れが生じ易い。 However, in the absorbent article described in Patent Document 1, between the respective grooves of the left groove and the front groove and the rear side, as well as large between the respective grooves of the right groove and the front groove and the rear spaced and are likely to occur is a leak in the width direction. また、このように離間した形状を有している結果、装着時において、吸収層の面形状が不安定である。 As a result of has such spaced shape, at the time of mounting, it is unstable surface shape of the absorbing layer. 例えば、吸収層の肌当接面側は、場合によって、前側の溝又は後側の溝によって過度の形状変化が抑えられなくなるため、左側の溝と右側の溝との間で吸収性物品が折れ易く、着用者側に隆起したり、着用者側から離間するように凹んだり、波を打ったりする。 For example, the skin contact surface side of the absorbent layer, optionally, since the excessive shape change by the front groove or the rear side of the groove can not be suppressed, bending the absorbent article with the left groove and a right groove easy, or raised to the wearer's side, dented so as to be separated from the wearer's side, or hit the waves.

従って、本発明の目的は、吸収層の肌当接面側に設けられた溝による幅方向の防漏性に優れると共に、装着時における吸収層の面形状の安定性が高い吸収性物品を提供することにある。 Accordingly, an object of the present invention is excellent in leakproofness in the width direction of a groove formed on the skin contacting side of the absorbent layer, provides high stability absorbent article surface shape of the absorbent layer during mounting It is to.

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には、平面視で、幅方向左側、幅方向右側、長手方向前側及び長手方向後側にそれぞれ左溝、右溝、前溝及び後溝が設けられており、前記左溝及び前記右溝は、それぞれ幅方向外側に凸に湾曲しており、前記前溝及び前記後溝は、それぞれ長手方向外側に凸に湾曲しており、前記左溝と前記前溝、該左溝と前記後溝、前記右溝と該前溝、及び該右溝と該後溝は、それぞれ分離しており、前記左溝の前端部及び前記右溝の前端部は、前記前溝の後端部よりも長手方向前側に位置しており、前記左溝の後端部及び前記右溝の後端部は、前記後溝の前端部よりも長手方向後側に位置している吸収性物品を提供することにより、上記目的を達成したものである The present invention provides an absorbent article comprising an absorbent layer and the leak-barrier layer, the skin contact surface side of the absorbent layer, in plan view, the width direction left, right side in the width direction, the longitudinal front and longitudinal each Hidarimizo, right groove in the rear, and front groove and the rear groove is provided, the left groove and the right groove is curved in a convex outward in the width direction respectively, the front groove and the rear groove , each of which is curved in a convex longitudinally outward, the left groove and the front groove, the left groove and the rear groove, the right groove and said front groove, and said right groove and the rear groove separates each and the front end of the front end portion and the right groove of the left groove of the rear end of the front groove is located longitudinally forward, the rear end of the rear portion and the right groove of the left groove parts by providing an absorbent article which is located longitudinally rearward of the front end of said rear groove is obtained by achieving the above object

本発明の吸収性物品によれば、吸収層の肌当接面側に設けられた溝による幅方向の防漏性に優れると共に、装着時における吸収層の面形状の安定性が高い。 According to the absorbent article of the present invention is excellent in leakproofness in the width direction of the grooves provided in the skin contact surface side of the absorbing layer, a high stability of the surface shape of the absorbent layer at the time of attachment. また、装着者の股下部形状に則した形状が得られやすい。 The shape is easily obtained conforming to the crotch portion shape of the wearer.

以下に、本発明の吸収性物品の好ましい一実施形態(第1実施形態)について、図面を参照しながら説明する。 Hereinafter, a preferred embodiment of an absorbent article of the present invention (first embodiment) will be described with reference to the drawings.
第1実施形態の吸収性物品は、図1〜図3に示すように、液保持性の吸収層10及び液不透過性又は液難透過性の防漏層11を備えた実質的に縦長の生理用ナプキン1である。 The absorbent article of the first embodiment, as shown in FIGS. 1 to 3, substantially elongated having the absorbent layer 10 and the liquid-impermeable or liquid-impermeable leak-proof layer 11 of the liquid retention it is a sanitary napkin 1. 吸収層10は、液透過性の表面シート2と液保持性の吸収体4とからなる。 Absorbing layer 10 is made of a liquid-permeable topsheet 2 and the liquid retentive absorbent body 4. 防漏層11は、液不透過性又は液難透過性の裏面シート3からなる。 Leak-barrier layer 11 is made of a liquid impermeable or liquid-impermeable backsheet 3.

吸収層10における肌当接面側には、平面視で、幅方向左側、幅方向右側、長手方向前側及び長手方向後側にそれぞれ左溝51、右溝52、前溝53及び後溝54が設けられている。 The skin contact surface side of the absorbent layer 10, in plan view, the width direction left, right side in the width direction, a longitudinal front and longitudinal rear respectively Hidarimizo 51, right groove 52, before the grooves 53 and the rear groove 54 It is provided.
尚、「平面視」とは、吸収性物品を引き伸ばした状態で肌当接面側から視ることをいう。 The "plan view" means that viewed from the skin contact surface side in a state of stretching the absorbent article. 「長手方向」及び「幅方向」というときは、特に明記のない限り、それぞれ「吸収性物品の長手方向」及び「吸収性物品の幅方向」を意味する。 The term "longitudinal" and "transverse direction", unless otherwise specified, each mean "width direction of the absorbent article" and "longitudinal direction of the absorbent article." 「前側」とは、装着時において着用者の前側に位置する側をいう。 The term "front" refers to the side which is located on the front side of the wearer at the time of mounting.

生理用ナプキン1は、長手方向に前方部A、排泄部対向部B(着用者の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に区分されている。 Sanitary napkin 1 is divided into a front longitudinal portion A, the excretion portion facing section B (portion with excretion portion facing region which is opposed to the excretory part of the wearer's center in the width direction) and the rear section C .
左溝51及び右溝52は、その大部分が排泄部対向部Bに位置している。 Hidarimizo 51 and Migimizo 52, most part is located in the excretion portion facing section B. 前溝53は、その大部分が前方部Aに位置している。 Before the grooves 53, most part located in front portion A. 後溝54は、その大部分が後方部Cに位置している。 Rear groove 54 is for the most part located in the rear part C.

溝5(左溝51、右溝52、前溝53及び後溝54に共通する説明をする際には、「溝5」の表現を用いる)は、吸収層10の肌当接面側に、例えば、ヒートシール加工、超音波シール加工等のシール加工を施すことにより形成される。 Grooves 5 (Hidarimizo 51, when the common description to the right groove 52, before the grooves 53 and the rear groove 54, using the expression "grooves 5"), the skin absorption layer 10 on the contact side, for example, heat-sealing process, is formed by applying a sealing process such as ultrasonic sealing process. 本実施形態における溝5は、ヒートシール加工によるエンボス溝である。 Grooves 5 in this embodiment is the embossed groove by heat sealing process.

左溝51及び右溝52は、それぞれ幅方向外側に凸に湾曲しており、1個の頂点を有する略楕円弧状である。 Hidarimizo 51 and Migimizo 52 is curved convexly outward in the width direction, respectively, a substantially elliptical arc shape having one apex. 左溝51及び右溝52の形状は、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となっている。 The shape of Hidarimizo 51 and Migimizo 52 has a substantially line symmetrical 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.
左溝51の内周縁の長手方向に沿う長さ(最短距離)L1〔図2(a)参照〕及び右溝52の内周縁の長手方向に沿う長さ(図示省略)は、ショーツに生理用ナプキンを取り付ける位置の違い及び個々人の体型による排泄位置の違いを許容し、排泄された液を吸収する観点から、好ましくは30〜110mm、更に好ましくは60〜80mmである。 Inner peripheral edge longitudinal direction along the length of the Hidarimizo 51 (shortest distance) L1 [FIGS. 2 (a) see] and the inner peripheral edge longitudinal direction along the length of the Migimizo 52 (not shown) is a physiological shorts allowing the difference in excretion position due to the difference and individual body type of position for attaching the napkin, from the viewpoint of absorbing excreted liquid, preferably 30~110Mm, more preferably 60 to 80 mm.

左溝51の内周縁と右溝52の内周縁との幅方向最大間隔W1〔図2(b)参照〕は、着用者の股間部にフィットするように隆起し、左溝溝51と右溝52とで囲まれた領域の面形状を安定させる観点から、好ましくは20〜60mm、更に好ましくは40〜50mmである。 Width direction maximum distance W1 between the inner peripheral edge of the inner peripheral edge and Migimizo 52 Hidarimizo 51 [refer to FIG. 2 (b)] is raised to fit the crotch of the wearer, Hidarimizomizo 51 and Migimizo 52 and the enclosed area of ​​the surface shape from the viewpoint of stabilizing at, preferably 20 to 60 mm, more preferably 40 to 50 mm.

左溝51の前端部51Aの内周縁と右溝52の前端部52Aの内周縁との幅方向間隔W2〔図2(b)参照〕は、吸収された液を左溝51と右溝52との間に閉じ込めず、吸収体4を有効に利用すると共に、液の拡散を制御する観点から、好ましくは10〜40mm、更に好ましくは15〜30mmである。 Widthwise distance between the inner peripheral edge of the front end portion 52A of the inner peripheral edge and Migimizo 52 of the front end portion 51A of the Hidarimizo 51 W2 [refer to FIG. 2 (b)] is the absorbed liquid Hidarimizo 51 and Migimizo 52 not trapped between, while effectively utilizing the absorbent body 4, from the viewpoint of controlling the spread of liquid, preferably 10 to 40 mm, more preferably 15 to 30 mm. この間隔W2の好ましい範囲は、左溝51の後端部51Bの内周縁と右溝52の後端部52Bの内周縁との幅方向間隔(図示省略)にも適用される。 A preferred range of this interval W2 is applied to the width direction distance between the inner periphery of the rear end portion 52B of the inner peripheral edge and Migimizo 52 of the rear end portion 51B of the Hidarimizo 51 (not shown).

前溝53及び後溝54は、それぞれ長手方向外側に凸に湾曲しており、3個の頂点を有する略円弧状である。 Before the grooves 53 and the rear grooves 54, each of which is curved in a convex longitudinally outwardly, a substantially arc shape with three apexes. 前溝53及び後溝54の形状は、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となっている。 Shape before the groove 53 and the rear groove 54 has a substantially line symmetrical 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.

前溝53の内周縁の長手方向に沿う長さL2〔図2(a)参照〕及び後溝54の内周縁の長手方向に沿う長さ(図示省略)は、長手方向の液の拡散を制御し、生理用ナプキンにおける左溝51と右溝52で囲まれる領域での面形状を安定させる観点から、好ましくは10〜60mm、更に好ましくは20〜40mmである。 Before longitudinal direction along the length the inner circumferential edge of the groove 53 L2 [FIGS. 2 (a) see] and the inner peripheral edge longitudinal direction along the length of the rear groove 54 (not shown) may control the diffusion of the longitudinal liquid and, from the viewpoint of stabilizing the surface shape of the area defined by the left groove 51 and Migimizo 52 in a sanitary napkin, preferably 10 to 60 mm, more preferably 20 to 40 mm.
前溝53の内周縁の幅方向最大間隔W3〔図2(b)参照〕は、吸収体4を有効利用し、モレを防止する観点から、好ましくは20〜70mm、更に好ましくは30〜50mmである。 Width direction maximum distance W3 inner peripheral edge of the front groove 53 [refer to FIG. 2 (b)] can effectively utilize the absorbent body 4, from the viewpoint of preventing leakage, preferably 20 to 70 mm, more preferably at 30~50mm is there. この間隔W3の好ましい範囲は、後溝54の内周縁の幅方向最大間隔W3〔図2(b)参照〕にも適用される。 A preferred range of this interval W3 is also applied in the width direction maximum distance W3 inner peripheral edge of the rear groove 54 [see FIG. 2 (b)].

前溝53における左後端部53Aの内周縁と右後端部53Bの内周縁との幅方向間隔(図示省略)は、モレの防止と幅方向折り線の形成しやすさ、即ち個装形状の安定性(加工性および形状の美観)の観点から、好ましくは15〜60mm、更に好ましくは20〜40mmである。 Before widthwise spacing (not shown) between the inner periphery of the inner peripheral edge and the right rear portion 53B of the left rear end portion 53A of the groove 53, the ease of formation of the prevention and widthwise fold line leakage, i.e. individual packaging shape from the viewpoint of stability (appearance of workability and shape), preferably 15~60Mm, more preferably 20 to 40 mm. この幅方向間隔の好ましい範囲は、後溝54における左前端部54Aの内周縁と右前端部54Bの内周縁との幅方向間隔W4〔図2(b)参照〕にも適用される。 A preferred range of the width direction interval is applied to the width direction distance W4 between the inner peripheral edge of the inner peripheral edge and the right front end portion 54B of the left front end portion 54A of the rear groove 54 [see FIG. 2 (b)]. なお、個装形態での折り線は、左溝51および右溝52が幅方向外側に凸に湾曲して形成されているため、生理用ナプキンの装着時には、左溝51と右溝52に囲まれる領域が着用者の身体側へ盛り上がることによって、略消失した状態となる。 Note that the folding line in the individually packaged form, since Hidarimizo 51 and Migimizo 52 are curved in a convex outward in the width direction, at the time of mounting of the sanitary napkin, surrounded by Hidarimizo 51 and Migimizo 52 by region bulges to the body side of the wearer to be in a state of substantially disappeared.

左溝51と前溝53、左溝51と後溝54、右溝52と前溝53、右溝52と後溝54は、それぞれ分離している。 Hidarimizo 51 a front groove 53, Hidarimizo 51 and the rear groove 54, the right groove 52 and the front groove 53, the right groove 52 and the rear grooves 54 are separated, respectively. 「分離している」とは、平面視で繋がっていないことを意味する。 By "separating" it means that not connected in a plan view.

左溝51の前端部51A及び右溝52の前端部52Aは、前溝53の後端部53A,53Bよりも長手方向前側に位置している。 The front end 52A of the front end portion 51A and Migimizo 52 Hidarimizo 51, the rear end portion 53A of the front groove 53 is located longitudinally forward of 53B. 詳述すると、左溝51の前端部51A及び右溝52の前端部52Aは、それぞれ前溝53の左後端部53A及び前溝53の右後端部53Bに対し、前側に且つ幅方向内側に位置している。 In detail, the front end portion 52A of the front end portion 51A and Migimizo 52 Hidarimizo 51 to the right rear portion 53B of the left rear end portion 53A and the front groove 53 of the front groove 53, respectively, and the inner side in the width direction on the front side It is located in.
左溝51の後端部51B及び右溝52の後端部52Bは、後溝54の前端部54A,54Bよりも長手方向後側に位置している。 The rear end portion 52B of the rear end portion 51B and Migimizo 52 Hidarimizo 51, the front end portion 54A of the rear groove 54 is located longitudinally rearward of 54B. 詳述すると、左溝51の後端部51B及び右溝52の後端部52Bは、それぞれ後溝54の左前端部54A及び後溝54の右前端部54Bに対し、後側に且つ幅方向内側に位置している。 In detail, the rear end portion 52B of the rear end portion 51B and Migimizo 52 Hidarimizo 51 to the right front end portion 54B of the left front end portion 54A and the rear groove 54 of each post groove 54, and the width direction of the rear side It is located on the inside.

左溝51の前端部51Aの外周縁と前溝53の左後端部53Aの外周縁との幅方向に重なる長さ(長手方向に沿う長さ)L3〔図2(b)参照〕は、モレの防止と幅方向折り線の形成しやすさの観点から、好ましくは1〜10mm、更に好ましくは3〜7mmである。 Front end 51A outer peripheral edge and the front groove 53 left rear end portion 53A width overlaps the direction lengths of the outer peripheral edge of the of Hidarimizo 51 (length along the longitudinal direction) L3 [refer to FIG. 2 (b)], the from the viewpoint of forming easiness of prevention and widthwise fold line leakage, preferably 1 to 10 mm, more preferably 3 to 7 mm. この長さL3の好ましい範囲は、右溝52の前端部52Aの外周縁と前溝53の右後端部53Bの外周縁との幅方向に重なる長さ(図示省略)、左溝51の後端部51Bの外周縁と後溝54の左前端部54Aの外周縁との幅方向に重なる長さ(図示省略)、右溝52の後端部52Bの外周縁と後溝54の右前端部54Bの外周縁との幅方向に重なる長さ(図示省略)にもそれぞれ適用される。 A preferred range of the length L3 is the rear right corner 53B length overlapping the width direction of the outer peripheral edge of the peripheral edge and front groove 53 of the front end portion 52A of the right groove 52 (not shown), after Hidarimizo 51 left front portion 54A outer peripheral edge length overlap in the width direction of the of the end portion 51B of the outer peripheral edge and the trailing groove 54 (not shown), the right front end portion of the outer peripheral edge and the trailing groove 54 of the rear end portion 52B of the right groove 52 length overlapping the width direction of the outer peripheral edge of 54B (not shown) is also applied, respectively.

右溝52の外周縁と前溝53の右後端部53Bとの間隔(最短距離)L4〔図2(b)参照〕は、好ましくは1〜10mm、更に好ましくは3〜6mmである。 Distance between the right rear end portion 53B of the outer peripheral edge and front groove 53 of the right groove 52 (the shortest distance) L4 [refer to FIG. 2 (b)] is preferably from 1 to 10 mm, more preferably 3 to 6 mm. この間隔L4の好ましい範囲は、左溝51の外周縁と前溝53の左後端部53Aとの間隔(図示省略)、左溝51の外周縁と後溝54の左前端部54Aとの間隔(図示省略)、右溝52の外周縁と後溝54の右前端部54Bとの間隔(図示省略)にもそれぞれ適用される。 A preferred range of this interval L4, the distance between the left rear end portion 53A of the outer peripheral edge and front groove 53 of Hidarimizo 51 (not shown), the distance between the front left corner 54A of the outer peripheral edge and the trailing groove 54 of Hidarimizo 51 (not shown), are respectively applied to the interval between the right front end portion 54B of the outer peripheral edge and the trailing groove 54 of the right groove 52 (not shown).

前溝53の左後端部53A及び右後端部53B並びに後溝54の左前端部54A及び右前端部54Bそれぞれの先端の幅は、0.01〜5mmであることが好ましい。 Left front end 54A and the right front end portion 54B the width of the respective tips of the left rear end portion 53A and the rear right corner 53B and the rear groove 54 of the front groove 53 is preferably 0.01 to 5 mm. 左溝51の前端部51A及び後端部51B並びに右溝52の前端部52A及び後端部52Bそれぞれの先端の幅は、0.01〜5mmであることが好ましい。 Front end 51A and the front end portion 52A and the rear end portion 52B the width of each of the tip of the rear end portion 51B and Migimizo 52 Hidarimizo 51 is preferably 0.01 to 5 mm.
また、前溝53の左後端部53A及び右後端部53B並びに後溝54の左前端部54A及び右前端部54Bそれぞれの先端の幅は、左溝51の前端部51A及び後端部51B並びに右溝52の前端部52A及び後端部52Bの先端の幅よりも広いことが好ましい。 Further, the front left corner 54A and the right front end portion 54B the width of the respective tips of the left rear end portion 53A and the rear right corner 53B and the rear groove 54 of the front groove 53, the front end portion 51A and the rear end portion 51B of the Hidarimizo 51 and it is preferably wider than the width of the tip of the front end portion 52A and the rear end portion 52B of the Migimizo 52. 左溝51の前端部51A及び後端部51B並びに右溝52の前端部52A及び後端部52Bは、先細り形状であることが好ましい。 Front end 52A and the rear end portion 52B of the front end portion 51A and the rear portion 51B and Migimizo 52 Hidarimizo 51 is preferably tapered.

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.

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、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。 The pulp material of the absorber 4, various pulp materials used in conventional absorbent articles or the like can be used, 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の厚みは、平面視で左溝51と右溝52とに幅方向に挟まれた領域において、好ましくは3〜30mm、更に好ましくは5〜15mmである。 The thickness of the absorbent body 4 in the region between the width direction and the left groove 51 and Migimizo 52 in plan view, preferably 3 to 30 mm, more preferably 5 to 15 mm. 吸収体4の厚みがこのような範囲であると、装着時に左溝51と右溝52に囲まれた領域を着用者の身体側へ盛り上げ易い点から好ましい。 If the thickness of the absorber 4 is in such a range, from the viewpoint easily raised areas surrounded by Hidarimizo 51 and Migimizo 52 when worn to the wearer's body side.
吸収体4の坪量は、吸収体4の柔軟性を確保する観点から、好ましくは200〜800g/m 2 、更に好ましくは300〜600g/m 2である。 The basis weight of the absorbent core 4, from the viewpoint of ensuring flexibility of the absorbent body 4, preferably 200 to 800 g / m 2, more preferably a 300 to 600 g / m 2.

吸収層10においては、図3に示すように、表面シート2と吸収体4とは、溝5(左溝51、右溝52、前溝53、後溝54)により接合されている。 In the absorption layer 10, as shown in FIG. 3, the surface sheet 2 and the absorbent body 4 are joined by the grooves 5 (Hidarimizo 51, right groove 52, before the groove 53, the rear groove 54). 溝5は、厚み方向に吸収体4の非肌当接面側近傍にまで深く延びて形成されている。 Groove 5 is formed to extend deeply into the non-skin near-contacting side of the absorbent body 4 in the thickness direction. そのため、排泄された体液が多量であっても、体液は、溝5で一旦止められ、溝5を通って吸収体4に移動することができる。 Therefore, even in a large amount was excreted body fluids, body fluids, stopped once by the groove 5, it can be moved to the absorbent body 4 through the grooves 5.

吸収体4の両側部の肌当接面側及び非肌当接面側は、図3に示すように、吸収体4の両側縁で折り返された一対の撥水性の内部シート7により被覆されている。 Skin on both sides of the absorbent body 4 contacting side and a non-skin contact surface side, as shown in FIG. 3, is covered with the inner sheet 7 of a pair of water-repellent that is folded back at both side edges of the absorbent body 4 there. 更に、表面シート2の両側部は、吸収体4の非肌当接面側に折り返され、内部シート7を被覆している。 Further, both side portions of the topsheet 2 is folded back to the non-skin contact surface side of the absorbent body 4, and covers the inner sheet 7.
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、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 may be used 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.

吸収体4における平面視で左溝51と右溝52とに幅方向に挟まれた領域は、装着前においては隆起していないが、装着時においては、生理用ナプキン1が幅方向から圧縮力を受けると、着用者の肌方向へ向って隆起する隆起部となる。 Region sandwiched in the width direction into a left groove 51 and Migimizo 52 in plan view of the absorbent body 4 is not raised in the front mounting, during mounting, the compressive force the sanitary napkin 1 from the width direction Upon receipt of, and ridges raised toward the skin direction of the wearer. このような隆起部は、装着時に、着用者の排泄部に当接する。 Such ridges when worn, contacts the excretory part of the wearer. 表面シート2における平面視で左溝51と右溝52とに幅方向に挟まされた領域には、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。 The region which is sandwiched in the width direction into a left groove 51 and Migimizo 52 in plan view at the surface sheet 2, from the viewpoint of improving the permeability of the excreted body fluid, that a plurality of holes are formed preferable.

左溝51、右溝52、前溝53及び後溝54の幅方向外側には、幅方向内側に凸に湾曲した一対のサイド溝6,6が設けられている。 Hidarimizo 51, right groove 52, the width direction outer side of the front groove 53 and the rear groove 54, a pair of side grooves 6, 6 is provided with curved convex inwardly in the width direction. サイド溝6,6は、溝5と同様の方法で形成されている。 Side grooves 6,6 are formed in the same manner as the groove 5. サイド溝6は、全体として、生理用ナプキン1の長手方向に沿って延びている。 Side grooves 6, as a whole, extends in the longitudinal direction of the sanitary napkin 1. サイド溝6の長手方向に沿う長さは、前溝53の最前端と後溝54の最後端との距離とほぼ同じかそれよりも長いことが好ましい。 Length along the longitudinal direction of the side grooves 6 is substantially equal to or longer also it is preferable the distance between the rearmost end of the lowest front and rear grooves 54 of the front groove 53. サイド溝6は、図3に示すように、厚み方向に吸収体4の中程まで延びている。 Side grooves 6, as shown in FIG. 3, and extends in the thickness direction to the middle of the absorbent body 4.

吸収体4の両側部の肌当接面側においては、表面シート2と吸収体4とが内部シート7を介してサイド溝6により接合されている。 In the absorber skin contact surface side of the both sides of the 4, the topsheet 2 and the absorbent body 4 are joined by the side grooves 6 through the inner sheet 7. 吸収体4の両側部の非肌当接面側においては、吸収体4の非肌当接面側と内部シート7とが接着剤により接合されている。 In the non-skin contact surface side of the both side portions of the absorbent body 4, the non-skin of the absorbent body 4 and the contact surface side and the inner sheet 7 is bonded by an adhesive.

吸収体4の非肌当接面側には、裏面シート3が配されており、吸収体4の両側部の非肌当接面側には更に撥水性の内部シート7が配されているため、吸収体4に吸収された体液の防漏性が向上している。 The non-skin contact surface side of the absorbent body 4, backsheet 3 are arranged, because it further arranged for the inner sheet 7 of water repellency to the non-skin contact surface side of the both side portions of the absorbent body 4 , leakproofness of the absorbed body fluid is improved in the absorbent body 4.
表面シート2における折り返された両側部は、肌当接面側においては接着剤により内部シート7に接合されており、非肌当接面側においては接着剤により裏面シート3に接合されている。 Both side portions folded back at the surface sheet 2, in the skin contact surface side is bonded to the inner sheet 7 by an adhesive, in the non-skin contact surface side is bonded to the backsheet 3 by adhesive.

表面シート2及び裏面シート3の長手方向両端部は、それぞれ吸収体4の長手方向両側縁から延出し、ヒートシール等の公知の接合方法により接合されている。 Longitudinal ends of the topsheet 2 and the backsheet 3, respectively extend from the longitudinal side edges of the absorbent body 4 are joined by known joining methods such as heat sealing.
裏面シート3の非肌当接面側(外面)には、生理用ナプキン1を着用者のショーツ等に固定するためのズレ止め剤(図示せず)が設けられている。 The non-skin facing side of the backsheet 3 (the outer surface), offset bonding agent for fixing the sanitary napkin 1 to the wearer's panties or the like (not shown) is provided. ズレ止め剤は、剥離紙(図示せず)によって被覆されており、未使用時には保護されている。 Displacement preventing agent is covered by a release paper (not shown), and is protected when not in use.

本実施形態の生理用ナプキン1は、使用前においては、前方部Aと排泄部対向部Bとの境界線近傍、及び排泄部対向部Bと後方部Cとの境界線近傍を折り線として、図4に示すように、3つ折りに折り畳まれている。 Sanitary napkin 1 of this embodiment, before use, as fold lines between the front portion A boundary vicinity between the excretion portion facing section B, and the boundary vicinity of the excretory part facing portion B and the rear station C, a as shown in FIG. 4, it is folded in three fold. 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。 In use, tab tape 8 is removed, respectively the front portion A and the rear section B is folded is opened longitudinally outwardly.

本実施形態の生理用ナプキン1は、ショーツ等の股下部内側に固定して着用される。 Sanitary napkin 1 of this embodiment is worn by fixing the crotch portion inside the shorts or the like. 生理用ナプキン1の排泄部対向部Bにおける表面シート2は、着用者の排泄部に当接する。 Topsheet 2 at the excretory part facing portion B of the sanitary napkin 1 is brought into contact with the excretory part of the wearer. この際、生理用ナプキン1は、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へ圧縮力を受ける。 At this time, the sanitary napkin 1 is subjected to compressive forces from the left and right by the base inner both thighs of the wearer inward in the width direction. なお、本発明でいう「凸に湾曲する」は、曲線状の凸に変形する場合に限らず、直線(多角形)状の凸に変形する場合も含む。 Incidentally, in the present invention "is curved in a convex" is not limited to be deformed into a curved convex, including when deformed in a linear (polygonal) convex.

次に、本実施形態の生理用ナプキン1の効果について説明する。 Description will now be given of an advantage of the sanitary napkin 1 of the present embodiment. 本実施形態の生理用ナプキン1においては、左溝51と前溝53、左溝51と後溝54、右溝52と前溝53、右溝52と後溝54は、それぞれ分離しており、左溝51の前端部51A及び右溝52の前端部52Aは、前溝53の後端部53A,53Bよりも長手方向前側に位置しており、左溝51の後端部51B及び右溝52の後端部52Bは、後溝54の前端部54A,54Bよりも長手方向後側に位置している。 In the sanitary napkin 1 of the present embodiment, Hidarimizo 51 a front groove 53, Hidarimizo 51 and the rear groove 54, the right groove 52 and the front groove 53, the right groove 52 and the rear grooves 54 are separated, respectively, the front end 52A of the front end portion 51A and Migimizo 52 Hidarimizo 51, the rear end portion 53A of the front groove 53 is located longitudinally forward of the 53B, the rear end 51B and Migimizo 52 Hidarimizo 51 the rear end portion 52B of the front end portion 54A of the rear groove 54 is located longitudinally rearward of 54B. そのため、吸収層10の肌当接面側に設けられた溝5による幅方向の防漏性は十分に確保される。 Therefore, leakproofness in the width direction by the groove 5 provided skin absorption layer 10 on the contact surface side is sufficiently secured. また、装着時における吸収層10の面形状の安定性が高い。 Moreover, high stability of the surface shape of the absorbent layer 10 at the time of attachment.

詳述すると、左溝51の前端部51A及び右溝52の前端部52Aは、それぞれ前溝53の左後端部53A及び前溝53の右後端部53Bに対し、前側に且つ幅方向内側に位置しており、左溝51の後端部51B及び右溝52の後端部52Bは、それぞれ後溝54の左前端部54A及び後溝54の右前端部54Bに対し、後側に且つ幅方向内側に位置している。 In detail, the front end portion 52A of the front end portion 51A and Migimizo 52 Hidarimizo 51 to the right rear portion 53B of the left rear end portion 53A and the front groove 53 of the front groove 53, respectively, and the inner side in the width direction on the front side located in the rear end portion 52B of the rear end portion 51B and Migimizo 52 Hidarimizo 51 to the right front end portion 54B of the left front end portion 54A and the rear groove 54 of each post groove 54 and the rear It is located inward in the widthwise direction.

そのため、第1実施形態の生理用ナプキン1によれば、装着時において、吸収層10は、左右から幅方向内側へ圧縮力を受けると、左溝51を前端部51A側に仮想的に延長した線と右溝52を前端部52A側に仮想的に延長した線からなる略V字状の折り線(図示省略)、及び左溝51を後端部51B側に仮想的に延長した線と右溝52を後端部52B側に仮想的に延長した線とからなる略V字状の折り線S1〔図2(a)参照〕を可撓軸として着用者の肌側へ向って隆起する。 Therefore, according to the sanitary napkin 1 of the first embodiment, at the time of mounting, the absorbent layer 10 when subjected to a compressive force from the lateral inward in the width direction, and virtually extend the Hidarimizo 51 in the front end portion 51A side lines and Migimizo 52 substantially V-shaped fold line consisting of a line that extends virtually to the front end portion 52A side (not shown), and lines and right the Hidarimizo 51 is virtually extended to the rear portion 51B side raised toward the wearer's skin side substantially V-shaped folding line S1 [see FIGS. 2 (a)] comprising a virtually extended lines of the groove 52 in the rear end portion 52B side as a flexible shaft.

従って、第1実施形態の生理用ナプキン1においては、図5に示すように、吸収層10の厚みの程度に拘わらず、吸収層10が安定して隆起して、着用者の排泄部Mにフィットし、着用者の排泄部Mを被覆する。 Thus, in the sanitary napkin 1 of the first embodiment, as shown in FIG. 5, regardless of the extent of the thickness of the absorbent layer 10, absorption layer 10 is raised stably, the excretion portion M of the wearer fit, to cover the excretion portion M of the wearer. しかも、吸収層10における平面視で左溝51と右溝52とに幅方向に挟まされた領域は、その面形状の安定性が高められており、装着中において、その隆起した形状が安定的に維持される。 Moreover, the area which is sandwiched in the width direction into a left groove 51 and Migimizo 52 in plan view in the absorption layer 10 has higher stability of the surface shape, during mounting, is stable the raised features It is maintained in.
また、図5で示される幅方向中央における長手方向に沿う断面形状は上述した通りであるが、図2(b)に示す右溝52の外周縁と前溝53の右後端部53Bとの隙間(他の同様の隙間も含む)付近での長手方向に沿う断面では、生理用ナプキン1は、上述の溝と溝との隙間によって、図5に示される吸収層10と着用者の排泄部Mとの分離形状がなくなるように着用者の排泄部Mにフィットしている。 Although the cross-sectional shape along the longitudinal direction in the width direction center as shown in FIG. 5 is as described above, the right rear end portion 53B of the outer peripheral edge and front groove 53 of the right groove 52 shown in FIG. 2 (b) gaps in the cross section along the longitudinal direction at (including other similar gaps) around, the sanitary napkin 1, the gap between the above-mentioned grooves and the absorption layer 10 and the wearer's excretory part shown in FIG. 5 separation shape of the M are fit to the excretion portion M of the wearer as eliminated.

また、左溝51及び右溝52よりも幅方向外側に、それぞれ一対のサイド溝6,6が設けられているため、生理用ナプキン1が局部的に幅方向からの圧縮力を受けた場合にも、圧縮力がサイド溝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左溝及び右溝52へ伝搬することにより、吸収層10は安定的に隆起する。 Further, the widthwise outer side than Hidarimizo 51 and Migimizo 52, since each pair of side grooves 6, 6 are provided, when the sanitary napkin 1 is subjected to compressive forces from locally width direction also, the compression force is dispersed in the entire longitudinal direction of the side grooves 6, by propagating to the left groove and Migimizo 52 are curved convexly outward in the width direction, the absorbent layer 10 is raised in a stable manner. そのため、幅方向内側への圧縮力が左右均等でなくても、吸収層10は着用者の肌側へ向って良好に隆起する。 Therefore, even if unequal lateral compressive force in the width direction inside, absorbent layer 10 is satisfactorily raised toward the wearer's skin side.

次に、本発明の吸収性物品の第2実施形態の生理用ナプキンについて説明する。 It will now be described a sanitary napkin of a second embodiment of an absorbent article of the present invention. 第2実施形態については、第1実施形態とは異なる点を中心に説明し、同じ点については説明を省略する。 For the second embodiment, the first embodiment and different points will be mainly described, for the same points is omitted. 従って、第2実施形態については、第1実施形態の説明が適宜適用される。 Thus, for the second embodiment, the description of the first embodiment applies as appropriate.

第2実施形態の生理用ナプキン1は、図6に示すように、第1実施形態に比して、前溝53の左後端部53Aと左溝51の前端部51Aとの位置関係、前溝53の右後端部53Bと右溝52の前端部52Aとの位置関係、後溝54の左前端部54Aと左溝51の後端部51Bとの位置関係、及び後溝54の右前端部54Bと右溝52の後端部52Bとの位置関係が異なるが、その他の構成については同様である。 Sanitary napkin 1 of the second embodiment, as shown in FIG. 6, in comparison with the first embodiment, the positional relationship between the front end portion 51A of the left rear end portion 53A and Hidarimizo 51 before the groove 53, before positional relationship between the front end portion 52A of the right rear portion 53B and Migimizo 52 of the groove 53, the positional relationship between the rear end portion 51B of the left front end portion 54A and Hidarimizo 51 of the rear groove 54, and the right front end of the rear groove 54 Although the positional relationship between the rear end portion 52B of the part 54B and Migimizo 52 are different, the same for the other configurations.

具体的には、第2実施形態の生理用ナプキン1においては、図6に示すように、前溝53の左後端部53A及び前溝53の右後端部53Bは、それぞれ左溝51の前端部51A及び右溝52の前端部52Aに対し、後側に且つ幅方向内側に位置している。 Specifically, in the sanitary napkin 1 of the second embodiment, as shown in FIG. 6, right rear portion 53B of the left rear end portion 53A and the front groove 53 of the front groove 53, respectively Hidarimizo 51 to the front end portion 52A of the front end portion 51A and Migimizo 52, it is and located inside in the widthwise direction on the rear side. また、後溝54の左前端部54A及び後溝54の右前端部54Bは、それぞれ左溝51の後端部51B及び右溝52の後端部52Bに対し、前側に且つ幅方向内側に位置している。 The right front end portion 54B of the left front end portion 54A and the rear groove 54 of the rear groove 54, compared rear portion 52B of the rear end portion 51B and Migimizo 52 respectively Hidarimizo 51 and positioned inwardly in the width direction on the front side are doing.

前溝53における左後端部53Aと右後端部53Bとの幅方向間隔(図示省略)は、吸収された液を左溝51と右溝52との間に閉じ込めず、吸収体4を有効に利用すると共に、液の拡散を制御する観点から、好ましくは10〜40mm、更に好ましくは15〜30mmである。 Widthwise distance between the left rear end portion 53A and the rear right corner 53B before the groove 53 (not shown) is not confined to absorbed liquid between the Hidarimizo 51 and Migimizo 52, enable the absorbent body 4 while use in the purpose of controlling the spread of liquid, preferably 10 to 40 mm, more preferably 15 to 30 mm. この間隔の好ましい範囲は、後溝54における左前端部54Aと右後端部54Bとの幅方向間隔W4〔図6(b)参照〕にも適用される。 A preferred range of this interval is also applied in the width direction distance W4 between the left front portion 54A and the rear right corner 54B of the rear groove 54 [refer to FIG. 6 (b)].

左溝51の前端部51Aの内周縁と右溝52の前端部52Aの内周縁との幅方向間隔W2〔図6(b)参照〕は、モレの防止と幅方向折り線の形成しやすさ、即ち個装形状の安定性(加工性および形状の美観)の観点から、好ましくは15〜50mm、更に好ましくは20〜40mmである。 Widthwise distance between the inner peripheral edge of the front end portion 52A of the inner peripheral edge and Migimizo 52 of the front end portion 51A of the Hidarimizo 51 W2 [refer to FIG. 6 (b)] can ease the formation of prevention and widthwise fold line leakage from the viewpoint of words individual packaging shape stability (appearance of workability and shape), preferably 15 to 50 mm, more preferably 20 to 40 mm. この間隔W2の好ましい範囲は、左溝51の後端部51Bの内周縁と右溝52の後端部52Bの内周縁との幅方向間隔(図示省略)にも適用される。 A preferred range of this interval W2 is applied to the width direction distance between the inner periphery of the rear end portion 52B of the inner peripheral edge and Migimizo 52 of the rear end portion 51B of the Hidarimizo 51 (not shown).

前溝53の外周縁と右溝52の前端部52Aとの間隔(最短距離)L4〔図6(b)参照〕は、幅方向折り線の形成しやすさの観点から、好ましくは1〜10mm、更に好ましくは3〜6mmである。 Interval (shortest distance) L4 of the front end portion 52A of the outer peripheral edge and Migimizo 52 before the groove 53 [refer to FIG. 6 (b)], from the viewpoint of forming easiness of widthwise fold line, preferably 1~10mm , more preferably from 3 to 6 mm. この間隔L4の好ましい範囲は、前溝53の外周縁と左溝51の前端部51Aとの間隔(図示省略)、後溝54の外周縁と左溝51の後端部51Bとの間隔(図示省略)、後溝54の外周縁と右溝52の後端部52Bとの間隔(図示省略)にもそれぞれ適用される。 A preferred range of this interval L4, the front distance (not shown) of the front end portion 51A of the outer peripheral edge and Hidarimizo 51 of the groove 53, the distance between the rear end portion 51B of the outer peripheral edge and Hidarimizo 51 of the rear groove 54 (shown omitted), respectively applied to the interval (not shown) of the rear end portion 52B of the outer peripheral edge and Migimizo 52 of the rear groove 54.

前溝53の左後端部53A及び右後端部53B並びに後溝54の左前端部54A及び右前端部54Bそれぞれの先端の幅は、左溝51の前端部51A及び後端部51B並びに右溝52の前端部52A及び後端部52Bの先端の幅よりも狭いことが好ましい。 Left front end 54A and the right front end portion 54B the width of the respective tips of the left rear end portion 53A and the rear right corner 53B and the rear groove 54 of the front groove 53, the front end portion 51A and the rear end portion 51B and the right Hidarimizo 51 it is preferably narrower than the width of the tip of the front end portion 52A and the rear end portion 52B of the groove 52. 前溝53の左後端部53A及び右後端部53B並びに後溝54の左前端部54A及び右前端部54Bは、先細り形状であることが好ましい。 Left front end 54A and the right front end portion 54B of the left rear end portion 53A and the rear right corner 53B and the rear groove 54 of the front groove 53 is preferably tapered.
その他、第1実施形態における各長さL1〜L3並びに間隔W1及びW3の好ましい範囲は、第2実施形態における対応する各長さL1〜L3並びに間隔W1及びW3にもそれぞれ適用される。 Other preferred range of the length L1~L3 and spacing W1 and W3 in the first embodiment is applied respectively also correspond to the length L1~L3 and spacing W1 and W3 in the second embodiment.

第2実施形態の生理用ナプキン1においては、前溝53の左後端部53A及び前溝53の右後端部53Bは、それぞれ左溝51の前端部51A及び右溝52の前端部52Aに対し、後側に且つ幅方向内側に位置しており、後溝54の左前端部54A及び後溝54の右前端部54Bは、それぞれ左溝51の後端部51B及び右溝52の後端部52Bに対し、前側に且つ幅方向内側に位置している。 In the sanitary napkin 1 of the second embodiment, the rear right corner 53B of the left rear end portion 53A and the front groove 53 of the front groove 53, the front end portion 52A of the front end portion 51A and Migimizo 52 respectively Hidarimizo 51 against, rear and and positioned inside in the widthwise direction, the right front end portion 54B of the left front end portion 54A and the rear groove 54 of the rear groove 54, the rear end of the rear end portion 51B and Migimizo 52 respectively Hidarimizo 51 to section 52B, it is positioned and in the width direction inside the front side.

そのため、第2実施形態の生理用ナプキン1によれば、装着時において、吸収層10は、左右から幅方向内側へ圧縮力を受けると、前溝53に包囲された領域及び後溝54に包囲された領域が、前溝53を左後端部53A側に仮想的に延長した線と前溝53を右後端部53B側に仮想的に延長した線からなる略V字状の折り線S2〔図6(a)参照〕、及び後溝54を左前端部54A側に仮想的に延長した線と後溝54を右前端部54B側に仮想的に延長した線とからなる略V字状の折り線S2〔図6(a)参照〕を可撓軸として、それぞれ着用者の肌側へ向って隆起する。 Therefore, according to the sanitary napkin 1 of the second embodiment, during mounting, the absorbent layer 10 when subjected to a compressive force from the lateral inward in the width direction, enclosing the region and the rear groove 54 surrounded by a front groove 53 area is pre-groove 53 to the left rear end portion 53A side to the virtually extended line before the groove 53 of the right rear end portion 53B of substantially V-shape consisting virtually extended lines side fold line S2 [refer to FIG. 6 (a)], and a substantially V-shaped consisting of a virtually extended line of the virtually extended line and the rear groove 54 to the right front end portion 54B side rear groove 54 in the left front end portion 54A side as flexible shaft the folding line S2 [refer to FIG. 6 (a)] of raised toward the skin side of each wearer. 一方で、吸収層10における平面視で左溝51と右溝52とに幅方向に挟まれた領域は、非肌当接面側に向けて凸に変形する。 On the other hand, the area between the width direction into a left groove 51 and Migimizo 52 in plan view in the absorption layer 10 is deformed to project toward the skin non-contacting side. その結果、第2実施形態の生理用ナプキン1は、装着時において、全体として非肌当接面側に滑らかに湾曲した形状となる。 As a result, the sanitary napkin 1 of the second embodiment, during mounting, a smoothly curved shape to the non-skin contact surface side as a whole.

従来の生理用ナプキン1においては、図7(a)に示すように、装着時において、湾曲した着用者の排泄部Mに対し、隙間〔一点鎖線で包囲して示す〕が生じ易かった。 In the conventional sanitary napkin 1, as shown in FIG. 7 (a), at the time of mounting, to the excretory part M of the curved wearer, [shown surrounded by a dashed line] gap was easy to occur. これに対し、第2実施形態の生理用ナプキン1は、図7(b)に示すように、装着時において、湾曲した着用者の排泄部Mに対し、隙間が生じ難く、排泄部Mに密着し易い。 In contrast, the sanitary napkin 1 of the second embodiment, as shown in FIG. 7 (b), at the time of mounting, to the excretory part M of the curved wearer, hardly a gap, close contact with the excretory part M easy to. そのため、生理用ナプキン1と排泄部Mとの隙間に起因する漏れが生じ難い。 Therefore, leakage hardly occurs due to the gap between the sanitary napkin 1 and the excretory part M. しかも、吸収層10における前溝53で包囲された領域及び後溝54で包囲された領域は、その面形状の安定性が高められており、装着中において、その隆起した形状が安定的に維持される。 Moreover, the region surrounded by the enclosed area and the rear groove 54 in the front groove 53 in the absorber layer 10 is increased stability of the surface shape is, during mounting, it is stably maintained its raised features It is.

さらに、本発明の吸収性物品の第3実施形態及び第4実施形態の生理用ナプキンについて説明する。 Further, it described sanitary napkin of the third and fourth embodiments of the absorbent article of the present invention. 第3実施形態については、第1実施形態及び第2実施形態とは異なる点を中心に説明し、同じ点については説明を省略する。 For the third embodiment, the first and second embodiments described focusing on the difference, for the same points is omitted. 従って、第3実施形態については、第1実施形態及び第2実施形態の説明が適宜適用される。 Thus, for the third embodiment, the description of the first embodiment and the second embodiment applies as appropriate. また、第4実施形態については、第3実施形態とは異なる点を中心に説明し、同じ点については説明を省略する。 As for the fourth embodiment, the third embodiment and different points will be mainly described, for the same points is omitted. 従って、第4実施形態については、第3実施形態の説明が適宜適用される。 Therefore, for the fourth embodiment, the description of the third embodiment applies as appropriate.

第3実施形態の生理用ナプキン1は、図8に示すように、第1実施形態及び第2実施形態に比して、後方に長くなされており、この後方に長くなされた領域に、長時間の使用や夜の使用を考慮して、後溝54とは別に最後溝55を有している。 Sanitary napkin 1 of the third embodiment, as shown in FIG. 8, as compared with the first embodiment and the second embodiment, it has been made long in the rear, a long made the area in the rear, a long time consider the use and night use, which separately has an end groove 55 and the rear groove 54. 前溝53の左後端部53Aと左溝51の前端部51Aとの位置関係、及び前溝53の右後端部53Bと右溝52の前端部52Aとの位置関係は、第1実施形態と同様であり、後溝54の左前端部54Aと左溝51の後端部51Bとの位置関係、及び後溝54の右前端部54Bと右溝52の後端部52Bとの位置関係は、第2実施形態と同様であり、その他の構成については第1実施形態と同様である。 Positional relationship between the front end portion 51A of the left rear end portion 53A and Hidarimizo 51 before the groove 53, and the positional relationship between the front end portion 52A of the right rear portion 53B and Migimizo 52 before the groove 53, the first embodiment and are similar, the positional relationship between the rear end portion 51B of the left front end portion 54A and Hidarimizo 51 of the rear groove 54, and the positional relationship between the rear end portion 52B of the right front end portion 54B and Migimizo 52 of the rear groove 54 are similar to the second embodiment, the other structure is the same as the first embodiment.

具体的には、第3実施形態の生理用ナプキン1においては、図8に示すように、前溝53の左後端部53A及び前溝53の右後端部53Bは、それぞれ左溝51の前端部51A及び右溝52の前端部52Aに対し、後側に且つ幅方向外側に位置している。 Specifically, in the sanitary napkin 1 of the third embodiment, as shown in FIG. 8, the right rear portion 53B of the left rear end portion 53A and the front groove 53 of the front groove 53, respectively Hidarimizo 51 to the front end portion 52A of the front end portion 51A and Migimizo 52, it is and located outward in the width direction on the rear side. また、後溝54の左前端部54A及び後溝54の右前端部54Bは、それぞれ左溝51の後端部51B及び右溝52の後端部52Bに対し、前側に且つ幅方向内側に位置している。 The right front end portion 54B of the left front end portion 54A and the rear groove 54 of the rear groove 54, compared rear portion 52B of the rear end portion 51B and Migimizo 52 respectively Hidarimizo 51 and positioned inwardly in the width direction on the front side are doing. 従って、第3実施形態の生理用ナプキン1は、第1実施形態及び第2実施形態の各々の特徴を有している。 Therefore, the sanitary napkin 1 of the third embodiment has the features of each of the first and second embodiments.

第3実施形態の生理用ナプキン1においては、図8に示すように、後溝54の後方に更に最後溝55を有しており、最後溝55と後溝54は同じ形状及び大きさとなっている。 In the sanitary napkin 1 of the third embodiment, as shown in FIG. 8, further behind the rear groove 54 has a last groove 55, the end groove 55 and the rear groove 54 is made the same shape and size there. このように形成されることにより、後方に延ばされた第3実施形態の生理用ナプキン1では、第1実施形態及び第2実施形態に施された同様の効果を有する溝51〜54が配置されているだけでなく、さらに後方に最後溝55が形成されていることから、着用者の身体によりフィットし易く、モレ防止効果を高めることができる。 By thus formed, in the sanitary napkin 1 of the third embodiment is extended to the rear, a groove 51 to 54 with the same effect which has been subjected to the first embodiment and the second embodiment is arranged not only are, since they have been further end groove 55 in the rear is formed, and easily fits the wearer's body, it is possible to improve the leakage preventing effect. また、後溝54と最後溝55との間に隙間があるため、個装時の折り線を形成しやすくすることができる。 Moreover, since there is a gap between the rear groove 54 and the last groove 55, it is possible to easily form a fold line KoSoji. 第3実施形態のように、後溝54の後方には生理用ナプキンの長さに応じて1又は複数の最後溝55を更に設けることができ、後溝54の後方に形成する最後溝55の長手方向長さを調整することで、様々な大きさの生理用ナプキンに適用可能である。 As in the third embodiment, the rear groove 54 in the rear of the sanitary napkin can be further provided with one or more of the last groove 55 depending on the length, the last groove 55 formed behind the rear groove 54 by adjusting the longitudinal length, it is applicable to sanitary napkins of varying sizes.

第4実施形態の生理用ナプキン1は、図9に示すように、後溝54の両側部及び後部を包囲する最後溝55を有しており、着用者の身体によりフィットし易く、モレ防止効果を高めることができるようになされている。 Sanitary napkin 1 of the fourth embodiment, as shown in FIG. 9, has a last groove 55 surrounding the sides and rear of the rear groove 54, it is easy to fit by the body of the wearer, leakage prevention effect it is made to be able to enhance. その他の構成は、第3実施形態と同様である。 Other configurations are the same as the third embodiment. 第4実施形態の生理用ナプキン1では、第3実施形態の生理用ナプキン1に比べ身体へのフィット性よりもモレ防止効果が優位となる。 In the sanitary napkin 1 of the fourth embodiment, leakage prevention effect than fitness to the body compared to the sanitary napkin 1 of the third embodiment is superior. 後溝54の長手方向長さは、前溝53の長手方向長さに比べ、1.2〜1.8倍長くなされており、生理用ナプキン1における後方へ延ばされた部位のフィット性とモレ防止性を高めている。 Longitudinal length of the rear groove 54, compared with the longitudinal length of the pre-groove 53 has been made 1.2 to 1.8 times longer, and the fit of the site that was extended to the rear in the sanitary napkin 1 to enhance the leak-preventing properties. 最後溝55は、この後溝54の長手方向長さより1.2〜2.5倍長い長手方向長さを有していることが好ましく、また後溝54の幅方向長さより1.1〜2.0倍の幅を有していることが好ましい。 Finally groove 55 is preferably has a 1.2 to 2.5 times longer longitudinal length than the longitudinal length of the rear groove 54, also from the widthwise length of the rear groove 54 from 1.1 to 2 preferably has a 2.0 times the width.

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、前溝53は、前側に向って尖った形状を有していてもよく、後溝54は、後側に向いて尖って形状を有していてもよい。 For example, pre-groove 53 may have a pointed shape toward the front side, the rear groove 54 may have a shape pointed toward the rear side.
撥水性の内部シート7を用いる代わりに、吸収体4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て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, to form a flap portion and extends out joining backsheet 3 and the topsheet 2 in the transverse direction outwardly from the respective side edges of the absorbent core 4, it is possible to increase the leakage preventing effect .
本発明の吸収性物品は、生理用ナプキンに制限されず、例えば、失禁パッドに適用することができる。 The absorbent article of the present invention is not limited to sanitary napkins, for example, it can be applied to incontinence pads.

図1は、本発明の吸収性物品の第1実施形態である生理用ナプキンを示す斜視図である。 Figure 1 is a perspective view showing a sanitary napkin as a first embodiment of an absorbent article of the present invention. 図2は、図1に示す生理用ナプキンの平面図で、(a)は全体図、(b)は溝のみを示す図である。 Figure 2 is a plan view of a sanitary napkin shown in FIG. 1, (a) is an overall view, (b) is a diagram showing only the groove. 図3は、図2に示すIII−III線断面図である。 Figure 3 is a sectional view taken along line III-III shown in FIG. 図4は、図1に示す生理用ナプキンが3つ折りされた状態を示す斜視図である。 Figure 4 is a perspective view showing a state where the sanitary napkin is tri-folded as shown in FIG. 図5は、図1に示す生理用ナプキンの装着状態を模式的に示す長手方向縦断面図である。 Figure 5 is a longitudinal vertical sectional view schematically showing a mounting state of the sanitary napkin shown in FIG. 図6は、第2実施形態の生理用ナプキンを示す平面図(図2対応図)である。 Figure 6 is a plan view showing a sanitary napkin of the second embodiment (FIG. 2 corresponding view). 図7(a)は、従来の生理用ナプキンの装着状態を模式的に示す長手方向縦断面図、図7(b)は、図6に示す生理用ナプキンの装着状態を模式的に示す長手方向縦断面図である。 7 (a) is a longitudinal vertical sectional view schematically showing a mounting state of the conventional sanitary napkin, Fig. 7 (b), longitudinal indicating the mounting state of the sanitary napkin shown in FIG. 6 schematically it is a longitudinal sectional view. 図8は、第3実施形態の生理用ナプキンを示す平面図〔図2(a)対応図〕である。 Figure 8 is a plan view showing a sanitary napkin of the third embodiment [FIGS. 2 (a) corresponding view]. 図9は、第4実施形態の生理用ナプキンを示す平面図〔図2(a)対応図〕である。 Figure 9 is a plan view showing a sanitary napkin of the fourth embodiment [FIGS. 2 (a) corresponding view].

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51 左溝 51A 前端部 51B 後端部52 右溝 52A 前端部 52B 後端部53 前溝 53A 左後端部 53B 右後端部54 後溝 54A 左前端部 54B 右前端部55 最後溝6 サイド溝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S1、S2 折り線 10 absorbent layer 11 leak-barrier layer 2 topsheet 3 backsheet 4 absorber 51 Hidarimizo 51A front end 51B rear end portion 52 right groove 52A front end 52B rear end portion 53 before the groove 53A left rear end portion 53B right rear portion 54 rear grooves 54A left front portion 54B right frontal portion 55 the last groove 6 side grooves 7 inside seat 8 tab tape A front portion B excretory part facing portion C rear portion S1, S2 fold line

Claims (8)

  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には、平面視で、幅方向左側、幅方向右側、長手方向前側及び長手方向後側にそれぞれ左溝、右溝、前溝及び後溝が設けられており、 The skin contact surface side of the absorbent layer, in plan view, the width direction left, right side in the width direction, the longitudinal front and longitudinal rear respectively side Hidarimizo, and right grooves, the front groove and the rear groove provided ,
    前記左溝及び前記右溝は、それぞれ幅方向外側に凸に湾曲しており、前記前溝及び前記後溝は、それぞれ長手方向外側に凸に湾曲しており、 The left groove and the right groove is curved in a convex outward in the width direction respectively, the front groove and the rear groove is curved in a convex longitudinally outward respectively,
    前記左溝と前記前溝、該左溝と前記後溝、前記右溝と該前溝、及び該右溝と該後溝は、それぞれ分離しており、前記左溝の前端部及び前記右溝の前端部は、前記前溝の後端部よりも長手方向前側に位置しており、前記左溝の後端部及び前記右溝の後端部は、前記後溝の前端部よりも長手方向後側に位置している吸収性物品。 The front groove and the left groove, left groove and the rear groove, the right groove and said front groove, and said right groove and the rear groove are separated respectively front and the right groove of the left groove the front end portion, of the rear end of the front groove is located longitudinally forward, the rear end of the rear end portion and the right groove of the left groove in the longitudinal direction than the front end of the rear groove absorbent article is positioned on the rear side.
  2. 前記左溝の前端部及び前記右溝の前端部は、それぞれ前記前溝の左後端部及び該前溝の右後端部に対し、前側に且つ幅方向内側に位置しており、前記左溝の後端部及び前記右溝の後端部は、それぞれ前記後溝の左前端部及び該後溝の右前端部に対し、後側に且つ幅方向内側に位置している請求項1記載の吸収性物品。 The front end of the front end portion and the right groove of the left groove, to the rear right corner of the left rear portion and the front groove of each of the front groove, and is located inward in the width direction on the front side, the left the rear end of the rear end portion and the right groove of the groove, relative to the right front end portion of the left front and rear groove of each said rear groove, according to claim 1, characterized in that in and positioned inside in the widthwise direction on the rear side absorbent article.
  3. 前記左溝の前端部の内周縁と前記右溝の前端部の内周縁との幅方向間隔は、10〜40mmであり、前記左溝の後端部の内周縁と前記右溝の後端部の内周縁との幅方向間隔は、10〜40mmである請求項2記載の吸収性物品。 Widthwise distance between the inner peripheral edge of the front end portion of the inner peripheral edge and the right groove of the front end of the left groove is 10 to 40 mm, the rear end portion of the inner peripheral edge and the right groove of the rear end of the left groove the widthwise distance between the inner peripheral edge of the absorbent article of claim 2 wherein the 10 to 40 mm.
  4. 前記前溝の左後端部及び該前溝の右後端部は、それぞれ前記左溝の前端部及び前記右溝の前端部に対し、後側に且つ幅方向内側に位置しており、前記後溝の左前端部及び該後溝の右前端部は、それぞれ前記左溝の後端部及び前記右溝の後端部に対し、前側に且つ幅方向内側に位置している請求項1記載の吸収性物品。 Rear right corner of the left rear portion and the front groove of the front groove, to the front end portion of the front end portion and the right groove of each of the left groove, rear and and located in the width direction inside, the right front portion of the left front and rear groove of the rear groove to the rear end of the rear end portion and the right groove of each of the left groove, according to claim 1 which is located and in the width direction inside the front side absorbent article.
  5. 前記前溝における左後端部の内周縁と右後端部の内周縁との幅方向間隔は、10〜40mmであり、前記後溝における左前端部の内周縁と右後端部の内周縁との幅方向間隔は、10〜40mmである請求項4記載の吸収性物品。 Widthwise distance between the inner peripheral edge of the inner peripheral edge and the right rear portion of the left rear end of the front groove is 10 to 40 mm, an inner peripheral edge of the inner peripheral edge and the right rear portion of the left front portion of the rear groove widthwise distance between the absorbent article according to claim 4, wherein a 10 to 40 mm.
  6. 前記左溝の前端部及び前記右溝の前端部は、それぞれ前記前溝の左後端部及び該前溝の右後端部に対し、前側に且つ幅方向内側に位置しており、前記後溝の左前端部及び該後溝の右前端部は、それぞれ前記左溝の後端部及び前記右溝の後端部に対し、前側に且つ幅方向内側に位置している請求項1記載の吸収性物品。 The front end of the front end portion and the right groove of the left groove, to the rear right corner of the left rear portion and the front groove of each of the front groove, and is located inward in the width direction on the front side, the rear right front portion of the left front and rear groove of the groove, relative to the rear end of the rear end portion and the right groove of each of the left groove, according to claim 1, characterized in that located and inward in the widthwise direction on the front side the absorbent article.
  7. 前記左溝の前端部の内周縁と前記右溝の前端部の内周縁との幅方向間隔は、10〜40mmであり、前記後溝における左前端部の内周縁と右後端部の内周縁との幅方向間隔は、10〜40mmである請求項6記載の吸収性物品。 Widthwise distance between the inner peripheral edge of the front end portion of the inner peripheral edge and the right groove of the front end of the left groove is 10 to 40 mm, an inner peripheral edge of the inner peripheral edge and the right rear portion of the left front portion of the rear groove widthwise distance between the absorbent article according to claim 6, wherein a 10 to 40 mm.
  8. 前記吸収層は、液透過性の表面シート及び液保持性の吸収体を備えており、 The absorbent layer comprises a liquid-permeable topsheet and a liquid retentive absorbent member,
    前記吸収体の厚みは、平面視で前記左溝と前記右溝とに幅方向に挟まれた領域において3〜30mmである請求項1〜7の何れかに記載の吸収性物品。 The thickness of the absorbent body, the absorbent article according to any one of claims 1 to 7 is 3~30mm in a region sandwiched between the width direction and the left groove and the right groove in a plan view.

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