JP2015092944A5

JP2015092944A5 -

Info

Publication number: JP2015092944A5
Application number: JP2013232623A
Authority: JP
Filing date: 2013-11-09
Publication date: 2016-03-31
Anticipated expiration: 2033-11-09

Description

また、予め測定した最大伸長時の寸法Ｒ１を１００％とする。チャック間距離Ｒから測定を開始し、チャック間の離間寸法が最大寸法Ｒ１の約８７％となるまで試料を伸長させた。次に、最大寸法Ｒ１の約８７％まで伸長させた試料を次第に収縮させて、上下チャック間の離間距離が約７１％となったときの伸長応力を測定し、試料の幅に基づいて、単位幅（約３０ｍｍ）当たりの値に換算した値を測定値（Ｎ／３０ｍｍ）にした。 Further, the dimension R1 at the maximum extension measured in advance is set to 100%. Measurement was started from the distance R between the chucks, and the sample was extended until the distance between the chucks was about 87% of the maximum dimension R1. Next, the sample extended to about 87% of the maximum dimension R1 is gradually contracted to measure the extension stress when the separation distance between the upper and lower chucks is about 71%. Based on the width of the sample, the unit is measured. A value converted into a value per width (about 30 mm) was taken as a measured value (N / 30 mm) .

ウエスト保持域５１ａは、前ウエストパネル１８側の前ウエスト保持域４９ｂと、後ウエストパネル１９側の後ウエスト保持域５０ｂとで形成される。前ウエスト保持域４９ｂと、前ウエスト伸縮域４９ａとは同一の領域である。 The waist retaining area 51a is formed by a front waist retaining area 49b on the front waist panel 18 side and a rear waist retaining area 50b on the rear waist panel 19 side. The front waist holding area 49b and the front waist stretchable area 49a are the same area.

上記段落［００９８］に開示した本発明に係るパンツ型の使い捨て吸収性物品は、少なくとも下記の実施形態を含み、実施形態は、互いに分離し又は組み合わせて採択される。
（１）前記吸収性コアを含み、前記吸収性コアの前記肌対向面に位置するトップシートと、前記吸収性コアの前記非肌対向面に位置するバックシートと、前記バックシートの前記非肌対向面に配置してある前記防漏性シートとを有する吸液構造体を備える。
（２）前記吸収性コアを含み、前記吸収性コアの前記肌対向面に位置するトップシートと、前記吸収性コアの前記非肌対向面に位置するバックシートと、前記バックシートの前記非肌対向面に位置する液不透過性シートとを有する吸液構造体を備え、前記防漏性シートは、前記吸液構造体の前記非肌対向面に配置してある。
（３）前記吸収性コアは前記縦方向へ連続して延びるものであり、前記縦方向において、前記吸収性コアの前記後端縁の位置が、前記吸収性コアの前記前端縁の位置よりも下方に配置される。
（４）前記前ウエスト保持域および前記後ウエスト保持域は、前記前ウエスト域における前記前開口端縁から前記吸収性コアの前記前端縁までの長さ寸法を基準にして設定されるものであり、前記後ウエスト保持域は、前記前ウエスト保持域を形成するシートの枚数が、前記後ウエスト保持域を形成するシートの枚数よりも少ない部分を有する。
（５）前記前ウエスト保持域を形成するシートの単位面積当たりの質量よりも、前記後ウエスト保持域を形成するシートの単位面積当たりの質量が小さい。
（６）前記前ウエスト域および前記後ウエスト域は、前記前ウエスト保持域における下端縁から前記クロッチ域へ向けて所定の長さ寸法だけ前記縦方向へ延びて前記前後ウエスト保持域に隣接する前ウエスト中央域及び後ウエスト中央域を有し、前記縦方向における単位長さ当たりの前記後ウエスト中央域の前記ウエスト回り方向への伸長応力よりも、前記縦方向における単位長さ当たりの前記後ウエスト保持域の前記ウエスト回り方向への伸長応力が大きい。
（７）前記後ウエスト保持域は、前記吸液構造体の前記非肌対向面側に配置されて前記横方向へ延びる後ウエスト弾性体を含み、前記後ウエスト弾性体は、前記ウエスト回り方向へ連続して延びる。
（８）前記防漏性シートの前記非肌対向面には、外部から視認可能な図が形成され、前記図は、前記縦方向へ延びる構成要素を有する。
（９）前記後ウエスト域は、前記後開口端縁から前記クロッチ域側の下端縁までの前記縦方向の長さ寸法を三等分した場合、前記後開口端縁側に位置する後外端域と、前記クロッチ域側に位置する後内端域と、前記後外端域と前記後内端域との間に位置する後中間域とを有し、前記後外端域と、前記後内端域と、前記後中間域とにおける伸長応力の相関関係は、前記後中間域≧前記後外端域＞前記後内端域である。
（１０）前記レッグ開口の一部に沿って配置されたレッグ弾性域を有し、前記レッグ弾性域と、前記後外端域とにおける伸長力の相関関係は、前記レッグ弾性域＜前記後外端域であり、前記レッグ弾性域と、前記後中間域とにおける伸長力の相関関係は、前記レッグ弾性域＜前記後中間域である。 The pants-type disposable absorbent article according to the present invention disclosed in the above paragraph [0098] includes at least the following embodiments, and the embodiments are adopted separately from each other or in combination.
(1) A topsheet that includes the absorbent core and is positioned on the skin-facing surface of the absorbent core; a backsheet that is positioned on the non-skin-facing surface of the absorbent core; and the non-skin of the backsheet A liquid-absorbing structure having the leak-proof sheet disposed on the opposing surface is provided.
(2) A top sheet that includes the absorbent core and is positioned on the skin facing surface of the absorbent core; a back sheet that is positioned on the non-skin facing surface of the absorbent core; and the non-skin of the back sheet A liquid-absorbing structure having a liquid-impermeable sheet positioned on the facing surface is provided, and the leak-proof sheet is disposed on the non-skin-facing surface of the liquid-absorbing structure.
(3) the absorbent core are those continuously extending in the said longitudinal direction, in the longitudinal direction, the position of the rear edge of the absorbent core, than the position of the front edge of the absorbent core It is arranged below.
(4) The front waist holding area and the rear waist holding area are set based on a length dimension from the front opening edge to the front edge of the absorbent core in the front waist area. The rear waist holding area has a portion where the number of sheets forming the front waist holding area is smaller than the number of sheets forming the rear waist holding area.
(5) The mass per unit area of the sheet forming the rear waist holding area is smaller than the mass per unit area of the sheet forming the front waist holding area.
(6) The front waist region and the rear waist region extend from the lower end edge of the front waist holding region toward the crotch region by a predetermined length in the vertical direction and are adjacent to the front and rear waist holding regions. The rear waist per unit length in the longitudinal direction has a waist central region and a rear waist central region, and is more than the extension stress in the waist direction of the rear waist central region per unit length in the longitudinal direction. The elongation stress in the holding area in the direction around the waist is large.
(7) The rear waist holding region includes a rear waist elastic body that is disposed on the non-skin-facing surface side of the liquid absorption structure and extends in the lateral direction, and the rear waist elastic body extends in the waist direction. It extends continuously.
(8) to the non-skin facing surface of the leakproofness sheet is visible figure formed from the outside, the view has a component extending in the longitudinal direction.
(9) The rear waist region is a rear outer end region located on the rear opening edge side when the longitudinal length from the rear opening edge to the lower end edge on the crotch region side is divided into three equal parts. And a rear inner end region located on the crotch region side, and a rear intermediate region located between the rear outer end region and the rear inner end region, the rear outer end region, and the rear inner region The correlation between the extension stress in the end region and the rear intermediate region is the rear intermediate region ≧ the rear outer end region> the rear inner end region.
(10) It has a leg elastic region arranged along a part of the leg opening, and the correlation between the extension force in the leg elastic region and the rear outer end region is such that the leg elastic region <the rear outer region It is an end region, and the correlation between the stretching force in the leg elastic region and the rear intermediate region is the leg elastic region <the rear intermediate region.

１０パンツ型の使い捨て吸収性物品（使い捨てプルオンおむつ）
１１吸液構造体
１４前ウエスト域
１５後ウエスト域
１６クロッチ域
１８前ウエストパネル
１９後ウエストパエル
２２ウエスト開口
２２ａ前開口端縁
２２ｂ後開口端縁
２３レッグ開口
２８前防漏性シート（前防漏性シート）
２９後防漏性シート（後防漏性シート）
３２第１後ウエスト弾性体
３４第２後ウエスト弾性体（後ウエスト弾性体）
４９ａ前ウエスト伸縮域
４９ｂ前ウエスト保持域
４９ｃ前ウエスト中央域
５０ａ後ウエスト伸縮域
５０ｂ後ウエスト保持域
５０ｃ前ウエスト中央域
５８吸収性コア
５８ａ前端縁
５８ｂ後端縁
５９身体側ライナ（トップシート）
６０外カバー（バックシート）
６１防漏性シート
６２レッグ弾性域
７４ａ第２図（図）
７６第２構成要素（構成要素）
１３７前外端域
１３８前内端域
１３９前中間域
１４０後外端域
１４１後内端域
１４２後中間域
Ｌ１前ウエスト域の前防漏性シートの外端縁から前開口端縁までの縦方向における離間寸法
Ｌ２後ウエスト域の後防漏性シートの外端縁から後開口端縁までの縦方向における離間寸法
Ｌ３吸収性コアの前端縁から前開口端縁側までの縦方向における離間寸法
Ｌ５吸収性コアの後端縁から後開口端縁までの縦方向における離間寸法
Ｌ６後ウエスト域における吸収性コアの縦方向の寸法
Ｌ９ウエスト保持域の縦方向の寸法（前ウエスト域における前開口端縁から吸収性コアの前端部までの長さ寸法）
Ｌ１０ウエスト中央域の縦方向の寸法（前ウエスト保持域における下端縁からクロッチ域へ向けて縦方向へ延びる長さ寸法）
Ｘ横方向
Ｙ縦方向
10 pants-type disposable absorbent articles (disposable pull-on diapers)
DESCRIPTION OF SYMBOLS 11 Liquid absorption structure 14 Front waist area 15 Rear waist area 16 Crotch area 18 Front waist panel 19 Rear waist pael 22 Waist opening 22a Front opening edge 22b Rear opening edge 23 Leg opening 28 Front leak-proof sheet (front leakage prevention sheet) Sex sheet)
29 Rear leak-proof sheet
32 1st back waist elastic body 34 2nd back waist elastic body (back waist elastic body)
49a Front waist stretchable region 49b Front waist retaining region 49c Front waist central region 50a Rear waist stretchable region 50b Rear waist retaining region 50c Front waist central region 58 Absorbent core 58a Front end edge 58b Rear end edge 59 Body side liner (top sheet)
60 Outer cover (back sheet)
61 Leakproof sheet 62 Leg elastic region 74a Fig. 2 (figure)
76 Second component (component)
137 Front outer edge area 138 Front inner edge area 139 Front middle area 140 Rear outer edge area 141 Rear inner edge area 142 Rear middle area L1 Vertical from the outer edge of the front leak-proof sheet in the front waist area to the front opening edge Separation dimension L2 in the direction The separation dimension L3 in the vertical direction from the outer end edge of the rear leak-proof sheet in the rear waist region to the rear opening edge L3 in the vertical direction from the front end edge of the absorbent core to the front opening end side Distance L6 in the longitudinal direction from the rear edge of the absorbent core to the edge of the rear opening L6 Vertical dimension of the absorbent core in the rear waist region L9 Vertical dimension of the waist retaining region (front opening edge in the front waist region To the front end of the absorbent core)
L10 Vertical dimension of the waist central area (length dimension extending in the vertical direction from the lower edge to the crotch area in the front waist holding area)
X Horizontal direction Y Vertical direction

Claims

Having a longitudinal direction and a transverse direction perpendicular thereto, a skin facing surface and a non-skin facing surface on the opposite side, a front waist region, a rear waist region, a crotch region located between the front and rear waist regions, at least the above In a pants-type disposable absorbent article including an absorbent core located in a crotch region, and a waist opening and a pair of leg openings are defined by joining both side edges of the front and rear waist regions to each other,
The front waist region includes a front opening edge that defines a part of the waist opening, a front waist holding region that can be expanded and contracted in a direction around the waist and located on the front opening edge side, and the absorbent core. Including a leak-proof sheet located on the non-skin facing surface side,
Waist region after said, the opening edge after defining a portion of said waist opening, and waist holding zone after located at the said rear opening edge side a stretchable to waistband direction, of the absorbent core Including the leak-proof sheet positioned on the non-skin facing surface side,
The distance between the outer edge of the leakproof sheet in the front waist region and the front opening edge in the longitudinal direction is from the outer edge of the leakproof sheet in the rear waist region to the rear opening edge. wherein greater than the separation dimension in the longitudinal direction, spaced distance in the longitudinal direction up to the front opening edge from the front edge of the absorbent core, the rear opening edge from the edge after the absorbent core to The said absorbent article characterized by being smaller than the separation dimension in the said vertical direction until.

Having a longitudinal direction and a transverse direction perpendicular thereto, a skin facing surface and a non-skin facing surface on the opposite side, a front waist region, a rear waist region, a crotch region located between the front and rear waist regions, at least the above In a pants-type disposable absorbent article including an absorbent core located in a crotch region, and a waist opening and a pair of leg openings are defined by joining both side edges of the front and rear waist regions to each other,
The rear waist region includes an opening edge that forms part of the waist opening, a waist stretchable region that can be stretched in a direction around the waist, a sheet that forms the waist stretchable region, and the non-skin of the absorbent core Including a leak-proof sheet located on the opposite surface side,
The leak-proof sheet extends to the opening edge side from the rear edge of the absorbent core,
The waist stretchable region is formed at least between the rear edge of the absorbent core and the opening edge,
The longitudinal dimension of the portion extending from the rear end edge of the absorbent core to the open end edge is being greater than the longitudinal dimension of the absorbent core in the rear waist region The absorbent article.

Said absorbent core are those continuously extending in the said longitudinal direction, in the longitudinal direction, the position of the rear edge of the absorbent core, disposed below the position of the front edge of the absorbent core The absorbent article according to any one of claims 1 to 4.

The said non-skin opposing surface of the said leak-proof sheet | seat forms the figure visually recognizable from the outside, The said figure has a component extended in the said vertical direction, Absorbency in any one of Claims 5-9 Goods.

A leg elastic region disposed along a part of the leg opening;
Correlation of the extension force between the leg elastic region and the rear outer end region is the leg elastic region <the rear outer end region,
The absorbent article according to claim 11, wherein a correlation between elongation force in the leg elastic region and the rear intermediate region is the leg elastic region <the rear intermediate region.