ABSORBENT ARTICLE

WIPO Patent Application WO/2020/090177

A1

The present invention makes it possible to continuously and stably separate a ventral portion and a dorsal portion by substantially the same force when removing an absorbent article. An absorbent article (1) includes a ventral part (11), a dorsal part (13), and a connecting part (14a) in which lateral end portions of the ventral part and the dorsal part (11e, 13e) are aligned longitudinally, stacked in a thickness direction, and connected to each other. The connecting part includes a plurality of fused portions (30) that are arranged longitudinally. Each of the fused portions includes a core portion (MC) and a peripheral wall portion (SW) that extends tubularly from the periphery of the core potion in the thickness direction. The surface of the core portion is flat. A graph which indicates load applied between jigs that hold a test piece relative to the distance between the jigs in a delamination test of the connecting part has convex portions in which the load indicates a maximum value generally at the positions of the plurality of fused portions. The standard deviation relative to the average value of the maximum value at the plurality of convex portions is 3N or less.

ICHIKAWA MAKOTO (JP)
TANAKA YOSHINORI (JP)
KAWABATA KUNIYOSHI (JP)
MATSUDA YOSHIYUKI (JP)

PCT/JP2019/030591

May 07, 2020

August 02, 2019

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UNICHARM CORP (JP)

A61F13/496

WO2010055767A1	2010-05-20
WO2004047699A1	2004-06-10

JP2001046432A	2001-02-20
JPH10137289A	1998-05-26
JP2003024381A	2003-01-28
JP2018000477A	2018-01-11
JP2004298413A	2004-10-28
JP2006192902A	2006-07-27

See also references of EP 3858314A4

AOKI, Atsushi et al. (JP)

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