JP2014204757A5

JP2014204757A5 -

Info

Publication number: JP2014204757A5
Application number: JP2013082340A
Authority: JP
Filing date: 2013-04-10
Publication date: 2016-04-14
Anticipated expiration: 2033-04-10

Description

本開示に係る使い捨ておむつは、前胴回り域（前胴回り域20）と、後胴回り域（後胴回り域30）と、前記前胴回り域と前記後胴回り域との間に位置する股下域（股下域25）と、前記前胴回り域から前記後胴回り域に向かう製品長手方向（製品長手方向L）と、前記製品長手方向と直交する製品幅方向（製品幅方向W）と、一対の脚回り開口部（脚回り開口部35）と、前記股下域を跨ぎ前記前胴回り域及び前記後胴回り域の少なくとも一方に延びる吸収体（吸収体40）と、前記前胴回り域及び前記後胴回り域において、前記製品幅方向に沿って延び、使い捨ておむつを着用者の身体に保持する胴回り保持部と、前記脚回り開口部に沿って、前記股下域を跨ぎ前記前胴回り域から前記後胴回り域まで延びるように形成されているレッグ伸縮部（レッグ伸縮部75）と、前記股下域において前記吸収体を構成する吸収性コアと重なる位置に配置され、前記製品長手方向または前記製品幅方向に伸縮可能な伸縮性部材が配置されたクロッチ伸縮部（クロッチ伸縮部200）と、前記レッグ伸縮部よりも前記製品幅方向内側に配置され、かつ前記製品長手方向に伸縮するレッグサイド伸縮部（レッグサイド伸縮部80）と、を備え、前記クロッチ伸縮部は、前記胴回り保持部及び前記レッグ伸縮部と離間して設けられており、前記レッグサイド伸縮部は、前記製品長手方向に伸縮するサイド弾性部材（サイド弾性部材71）によって収縮する収縮部（収縮部84）と、前記収縮部よりも前記製品幅方向外側に設けられ、かつ前記レッグ伸縮部と前記クロッチ伸縮部との間に位置する中間領域において、前記レッグサイド伸縮部よりも非肌当接面側に位置する裏面側部材に接合された第１接合部分（第１接合部分81A）と、前記収縮部よりも前記製品長手方向の両外側に設けられ、前記裏面側部材に接合された第２接合部分（第２接合部分81B）と、を有し、前記第１接合部分は、前記レッグ伸縮部と前記クロッチ伸縮部との間に位置する中間領域において、前記裏面側部材に接合されており、前記中間領域は、前記クロッチ伸縮部よりも伸縮率が低く、かつ前記レッグ伸縮部よりも伸縮率が低いことを要旨とする。 The disposable diaper according to the present disclosure includes a front waistline region (front waistline region 20), a rear waistline region (rear waistline region 30 ), and a crotch region (inseam region) located between the front waistline region and the rear waistline region. 25 ), a product longitudinal direction (product longitudinal direction L) from the front waistline region to the rear waistline region, a product width direction (product width direction W) orthogonal to the product longitudinal direction, and a pair of leg opening (Leg leg opening 35), an absorbent body (absorber 40) extending across at least one of the front waistline area and the rear waistline area across the crotch area, and the product in the front waistline area and the rear waistline area A waistline holding part that extends along the width direction and holds the disposable diaper on the wearer's body, and that extends from the front waistline area to the rear waistline area across the crotch area along the leg opening. Leg extension (leg) The reduced portion 75), wherein the crotch region is disposed at a position overlapping the absorbent core constituting the absorbent, the product longitudinal direction or the product width direction extendable stretchable member is disposed a crotch stretch unit ( A crotch expansion / contraction part 200) and a leg side expansion / contraction part (leg side expansion / contraction part 80) which is disposed on the inner side in the product width direction than the leg expansion / contraction part and expands / contracts in the product longitudinal direction. Is provided apart from the waistline holding part and the leg elastic part, and the leg side elastic part is contracted by a side elastic member (side elastic member 71) that expands and contracts in the longitudinal direction of the product (shrinkable part) Part 84) and an intermediate region provided on the outer side in the product width direction than the contraction part and located between the leg extension part and the crotch extension part. A first joint part (first joint part 81A) joined to the back side member positioned on the non-skin contact surface side of the stretchable part, and provided on both outer sides in the product longitudinal direction from the contraction part, A second joint portion (second joint portion 81B) joined to the back side member, and the first joint portion is located in an intermediate region located between the leg stretchable portion and the crotch stretchable portion. The intermediate region is bonded to the back side member, and the intermediate region has a lower expansion ratio than the crotch expansion / contraction part and a lower expansion / contraction ratio than the leg expansion / contraction part.

本実施形態に係る使い捨ておむつの展開平面図である。It is an expanded top view of the disposable diaper concerning this embodiment. 図１に示したF1-F1線に沿った使い捨ておむつの断面図である。It is sectional drawing of the disposable diaper along the F1-F1 line | wire shown in FIG. 図１に示したF2-F2線に沿った使い捨ておむつの断面図である。It is sectional drawing of the disposable diaper along the F2-F2 line | wire shown in FIG. 図１に使い捨ておむつの装着状態を示す断面図である。It is sectional drawing which shows the mounting state of a disposable diaper in FIG. 変形例に係る使い捨ておむつの展開平面図である。It is a developed plan view of a disposable diaper according to a modification.

吸収性コアの中央部41における製品幅方向外側端部と、吸収性コアの幅広部42における製品幅方向外側端部と、の距離W43（図１参照）は、１５ｍｍ以上である。距離W43は、中央部41において最も幅が狭い部分における製品幅方向外側端部と、幅広部42において最も幅が広い部分における製品幅方向外側端部と、の距離である。 A distance W43 (see FIG. 1 ) between a product width direction outer end portion in the central portion 41 of the absorbent core and a product width direction outer end portion in the wide width portion 42 of the absorbent core is 15 mm or more. The distance W43 is a distance between the outer end portion in the product width direction at the narrowest portion in the central portion 41 and the outer end portion in the product width direction at the widest portion in the wide portion.

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;
A pair of leg openings,
An absorber extending across at least one of the front waistline region and the rear waistline region across the crotch region;
In the front waistline region and the rear waistline region, a waistline holding portion that extends along the product width direction and holds a disposable diaper on a wearer's body;
A leg stretchable part formed so as to extend from the front waistline area to the rear waistline area across the crotch area along the leg opening.
A crotch expansion / contraction part in which a stretchable member arranged in the crotch region overlaps with the absorbent core constituting the absorbent body and capable of expanding and contracting in the product longitudinal direction or the product width direction;
A leg side stretchable part that is disposed on the inner side in the product width direction than the leg stretchable part and stretches in the product longitudinal direction,
The crotch stretchable part is provided separately from the waistline holding part and the leg stretchable part,
The leg side stretchable part is
A contraction part contracted by a side elastic member extending and contracting in the product longitudinal direction;
In an intermediate region that is provided on the outer side in the product width direction with respect to the contraction portion and is located between the leg expansion / contraction portion and the crotch expansion / contraction portion, is positioned closer to the non-skin contact surface than the leg side expansion / contraction portion A first joining portion joined to the back side member;
A second joint portion provided on both outer sides in the product longitudinal direction than the contraction portion and joined to the back side member;
The middle region is a disposable diaper having a lower expansion / contraction rate than the crotch expansion / contraction part and a lower expansion / contraction rate than the leg expansion / contraction part.

Before Ki吸 Osamusei core includes a central portion located at the center of the product longitudinal direction, than the central portion located in the product longitudinal direction outside, the product width of the length of the product width direction the central portion A wide portion longer than the length in the direction,
The first joint portion is disposed on the outer side in the product width direction than the center portion,
The disposable diaper according to claim 1, wherein the second joint portion is disposed on a skin contact surface side of the wide portion.

The distance of the said product width direction outer side edge part in the said center part of the said absorptive core and the said product width direction outer side edge part in the said wide part of the said absorptive core is 15 mm or more. Disposable diapers.

The disposable diaper according to any one of claims 1 to 3, wherein a shrinkage amount of the crotch stretchable part in the product longitudinal direction is 2% or more and 8% or less of a length of the disposable diaper in the product longitudinal direction. .

The front waistline side end of the range that can be expanded and contracted in the leg stretchable part is closer to the front waistline side of the disposable diaper than the end of the front waistline side of the range that can be expanded and contracted in the crotch stretchable part. Is configured to be close to the end of the
The rear waistline side end of the range that can be expanded and contracted in the leg stretchable part is closer to the back waistline side of the disposable diaper than the end on the back waistline side of the range that can be stretched in the crotch stretchable part Is configured to be close to the end of the
The disposable diaper according to any one of claims 1 to 3, wherein a tension coefficient of the crotch stretchable part is configured to be larger than a tensile coefficient of the leg stretchable part.

Elongation rate before chrysanthemum Rotch stretch unit, 1.2 times or more and 1.8 times or less, disposable diaper according to any one of claims 1 to 3.

The disposable diaper according to any one of claims 1 to 6, wherein the crotch stretchable portions are respectively arranged on both outer sides in the product width direction with respect to a center in the product width direction of the absorber in the crotch region.