JP2015024051A5

JP2015024051A5 -

Info

Publication number: JP2015024051A5
Application number: JP2013156040A
Authority: JP
Filing date: 2013-07-26
Publication date: 2016-04-21
Anticipated expiration: 2033-07-26

Description

このようなシート形状のウエスト伸縮シートを設けることにより、ウエスト伸縮シートを配置した領域（ウエスト開口部近傍）が面で体に沿う。よって、着用者の体を好適に覆うことができる。一方、複数の糸状の弾性部材を設ける構成にあっては、糸状の弾性部材部分は、体に沿うが、厳密には、糸状の弾性部材の間の部分は体に当たらない。よって、線で体に沿うことになり、ズレ等が発生し易く、着用者の体を覆うことが不十分になってしまう。また、ウエスト伸縮シートは、シート自体が弾性を有する為、柔軟性にもすぐれ、ウエスト周りにクッション感を付与できる。更には、ウエスト伸縮シートが収縮した状態では、ウエスト伸縮シートが配置された部分が嵩高な状態となり易く、風合いにも優れた状態となる。 By providing the waist Shin Chijimishi over bets of such a sheet shape, area arranged waist stretchable sheet (near the waist opening) extends along the body in the plane. Therefore, a wearer's body can be covered suitably. On the other hand, in the configuration in which a plurality of thread-like elastic members are provided, the thread-like elastic member portions are along the body, but strictly speaking, the portions between the thread-like elastic members do not hit the body. Therefore, it will follow a body with a line, it will be easy to generate gap etc. and it will become insufficient to cover a wearer's body. In addition, West Shin Chijimishi over door, because the sheet itself has elasticity, excellent in flexibility, can impart a cushion feeling around the waist. Furthermore, in the state where the waist Shin Chijimishi over preparative contracts, easily parts West Shin Chijimishi over bets are placed becomes bulky state, the even better texture.

本実施形態では、ウエスト伸縮シートは、当該ウエスト伸縮シートを挟んで配置されるシートに接合されている。具体的には、ウエスト伸縮シートは、外装シート60とバックシート60aとの間に配置されている。しかし、コアラップ40bが吸収性コア40aよりも製品長手方向外側に延出する構成にあっては、ウエスト伸縮シートは、コアラップ40bと、バックシート60a又は外装シート60と、の間に配置されていてもよい。ウエスト伸縮シートの位置は、特に限定されない。また、吸収体が配置されない領域にあっては、サイドフラップ70と、バックシート60a又は外装シート60と、の間に配置されていてもよい。ウエスト伸縮シートは、ホットメルト接着剤又は加熱処理等によって外装シート60等に接着される。 In this embodiment, the waist elastic sheet is bonded to the sheet disposed across the waist Shin Chijimishi over preparative. Specifically, the waist elastic sheet is disposed between the exterior sheet 60 and the back sheet 60a. However, in the configuration in which the core wrap 40b extends outward in the product longitudinal direction from the absorbent core 40a, the waist stretchable sheet is disposed between the core wrap 40b and the back sheet 60a or the exterior sheet 60. Also good. The position of the waist elastic sheet is not particularly limited. Further, in a region where the absorbent body is not disposed, it may be disposed between the side flap 70 and the back sheet 60a or the exterior sheet 60. The waist elastic sheet is bonded to the exterior sheet 60 or the like by a hot melt adhesive or heat treatment.

ウエスト伸縮シートが配置された領域では、シート同士（具体的には、トップシート、バックシート、ウエスト伸縮シート）の接合は、間欠的に塗布された接着剤（ホットメルト接着剤）にて固定されている。間欠的に塗布とは、面状に塗布された状態ではなく、線状の接着剤が蛇行・スパイラル形状等を描きながら塗布されている状態をいう。 In the region where the waist elastic sheet is disposed (specifically, the topsheet, backsheet, West Shin Chijimishi over G) between the sheets is bonded, the intermittently applied adhesive (hot melt adhesive) Is fixed. Intermittent application refers to a state where a linear adhesive is applied while drawing a meandering / spiral shape, etc., rather than being applied in a planar shape.

高目付け部と低目付け部とを有するトップシートが少なくともウエスト伸縮シートが配置された領域から使い捨ておむつの製品長手方向端部までの範囲に配置されている。少なくともウエスト伸縮シートが配置された領域から使い捨ておむつの前記製品長手方向端部までの範囲に配置されている状態とは、後側ウエスト伸縮シートを覆い、かつ当該後側ウエスト伸縮シートから使い捨ておむつの後側端部まで配置されている状態、及び、前側ウエスト伸縮シートを覆い、かつ当該前側ウエスト伸縮シートから使い捨ておむつの前側端部まで配置されている状態である。 Topsheet and a high basis weight portion and the low basis weight portion is disposed in a range from a region where at least the waist Shin Chijimishi over bets placed to product longitudinal ends of the disposable diaper. The state of being positioned in a range from at least waist Shin Chijimishi over bets placed region to the product longitudinal direction end portion of the disposable diaper, covers the rear waist Shin Chijimishi over preparative and the rear waist state of a stretchable sheet is disposed to the rear end portion of the disposable diaper, and covers the front waist Shin Chijimishi over preparative, and is in a state of being disposed from said front waist stretchable sheet to the front end portion of the disposable diaper .

ウエスト伸縮シートは、当該ウエスト伸縮シートを挟んで配置されるシートに接着剤を介して接合されており、接着剤が間欠的に塗布されているため、シートの接合点が少ない。ウエスト伸縮シートが収縮した状態においては、非接合部（接着剤が塗布されていない部分）における製品厚みが大きくなり、かつ柔軟性が高い状態となる。 Waist elastic sheet is bonded through an adhesive sheet disposed across the waist Shin Chijimishi over preparative, since the adhesive is intermittently applied, the junction of the sheet is small. In the state where the waist elastic sheet is contracted, the product thickness at the non-bonded portion (the portion where the adhesive is not applied) becomes large and the flexibility is high.

Claims

A front waistline region, a back waistline region, a crotch region located between the front waistline region and the back waistline region;
Product longitudinal direction from the front waistline region to the rear waistline region,
A product width direction orthogonal to the product longitudinal direction;
Straddling the crotch region, extending to at least one of the front waistline region and the rear waistline region, an absorbent body having an absorbent core;
A pair of fastening tapes arranged at the outer end in the product width direction of the rear waistline region and fastened to the front waistline region;
A waist stretchable sheet straddling the product width direction center of the disposable diaper and having elasticity in the product width direction;
In the front waistline region and the rear waistline region, a disposable diaper comprising a waistline holding portion that extends along the product width direction and holds the disposable diaper on the wearer's body,
The waist stretchable sheet has a rear waist stretchable sheet disposed at a rear end portion of the rear waistline region, and a front waist stretchable sheet disposed at a front end portion of the front waistline region,
A part of the rear waist elastic sheet is disposed so as to overlap with a rear end portion of the absorbent core, and is disposed so as to overlap with the waistline holding portion,
The said front waist elastic sheet is a disposable diaper arrange | positioned adjacent to the front side edge part of the said absorptive core.

A liquid-impermeable back sheet disposed on the non-skin contact surface side of the absorbent body;
The front end of the backsheet is located between the front end of the disposable diaper and the front end of the absorbent core,
2. The disposable diaper according to claim 1, wherein a rear end portion of the backsheet is located between the rear end portion of the disposable diaper and a rear end portion of the absorbent core.

The back sheet is provided with a visible pattern from the non-skin contact surface side of the disposable diaper,
The design is arranged in a region overlapping with the absorbent core, and between the front end of the disposable diaper and the front end of the absorbent core, and the rear end of the disposable diaper and the absorbent. The disposable diaper of Claim 2 which is not arrange | positioned between the rear side edge parts of a core.

In the front waist area, a target portion to which the fastening tape is fixed is disposed,
The disposable diaper in any one of Claims 1-3 with which the rear side edge part of the said front waist elastic sheet is arrange | positioned adjacent to the front side edge part of the said target part.

A top sheet disposed on the skin contact side surface of the disposable diaper;
It said topsheet is arranged in a range from at least the waist Shin Chijimishi over bets are placed region to the product longitudinal direction end portion of the disposable diaper,
The disposable diaper according to any one of claims 1 to 4, wherein the top sheet is configured by a nonwoven fabric sheet having alternately high and low basis weight portions in the product width direction.

An exterior sheet disposed on the non-skin contact surface of the disposable diaper;
A top sheet disposed on the skin contact side surface of the disposable diaper;
At least one of the top sheet and the exterior sheet is constituted by a non-woven sheet having no heat-bonding point by point or line embossing, or a non-woven sheet having an area ratio of point or line embossing of 5% to 15%. Has been
It said topsheet and said one of said outer sheet is disposed in a range from at least the waist Shin Chijimishi over bets are placed region to the product longitudinal direction end portion of the disposable diaper, according claim 1 The disposable diaper in any one of claim | item 4.

The waist stretchable sheet is bonded through an adhesive sheet disposed across the waist Shin Chijimishi over preparative,
The disposable diaper according to any one of claims 1 to 6, wherein the adhesive is disposed intermittently.

The disposable diaper according to any one of claims 1 to 7, wherein a thickness of the end portion in the product longitudinal direction of the absorbent core is smaller than a thickness of the absorbent core in the product longitudinal direction center.