UNDERPANTS-TYPE DISPOSABLE DIAPER

WIPO Patent Application WO/2021/106794

A1

Provided is an underpants-type disposable diaper (1) which comprises engaging parts (60) that engage end parts of a ventral side waist part (20) and a dorsal side waist part (30). In this underpants-type disposable diaper (1), the sum of the basis weight of a skin side sheet member (25, 35) arranged closest to the skin and the basis weight of a sheet member (22, 32) arranged farthest from the skin is 32 g/m2 or less for the ventral side waist part (20) and for the dorsal side waist part (30), the skin side sheet members (25, 35) overlap the engaging parts (60) in both end parts in the left-right direction, and in regions (A60) inwardly adjacent the engaging parts (60) in the left-right direction, each skin side sheet member (25, 35) has a non-connected part that is not connected to a sheet member (21, 31) layered on the non-skin side of the skin side sheet member (25, 35). The tear strength for tearing the skin side sheet members (25, 35) along the left-right direction is stronger than the peel strength of the engaging parts (60).

WO/1999/030661	ABSORBENT ARTICLE
JP2007515223	Absorption structure and method for manufacturing the absorption structure
JP2015535698	Articles with a soft non-woven layer

ICHIKAWA MAKOTO (JP)
MUKAI HIROTOMO (JP)
TANAKA SUGURU (JP)
OKUNO SHINGO (JP)

PCT/JP2020/043441

June 03, 2021

November 20, 2020

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UNICHARM CORP (JP)

A61F13/49; A61F13/496

JPH08182704A	1996-07-16
JP2001314441A	2001-11-13
JP2017029683A	2017-02-09
JP2017051485A	2017-03-16
JP2014195747A	2014-10-16
JP2020000718A	2020-01-09
JP2009061051A	2009-03-26

ISSHIKI & CO. (JP)

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