The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 11, 2025

Filed:

May. 27, 2019
Applicant:

Kao Corporation, Tokyo, JP;

Inventors:

Mina Tomita, Utsunomiya, JP;

Yuko Fukuda, Mashiko-machi, JP;

Assignee:

KAO CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F 13/511 (2006.01); A61F 13/49 (2006.01); A61H 19/00 (2006.01); A61M 21/02 (2006.01); A61B 5/145 (2006.01); A61F 13/15 (2006.01); A61F 13/513 (2006.01); A61M 21/00 (2006.01);
U.S. Cl.
CPC ...
A61F 13/51104 (2013.01); A61F 13/49 (2013.01); A61H 19/30 (2013.01); A61M 21/02 (2013.01); A61B 5/14546 (2013.01); A61F 2013/15284 (2013.01); A61F 2013/51178 (2013.01); A61F 2013/51182 (2013.01); A61F 2013/51316 (2013.01); A61F 2013/51338 (2013.01); A61M 2021/0022 (2013.01);
Abstract

Disclosed is an absorbent article including a projecting-and-depressed sheet () as a constituent member, the absorbent article having a longitudinal direction and a width direction orthogonal to the longitudinal direction. The projecting-and-depressed sheet () has a plurality of depressions () and projections () on a skin-facing surface to be brought into contact with the wearer's skin. In a given direction, a movable range of an apex () of the projection () of the projecting-and-depressed sheet () is 30% or greater to the length (L) of a bottom portion of the projection (). On the skin-facing surface of the projecting-and-depressed sheet (), the mean friction coefficient MIU in the longitudinal direction (X) is 0.3 or less, and a difference in friction coefficient between a forward path and a return path when moved back and forth along the longitudinal direction (X) is less than 0.1. The projecting-and-depressed sheet () has a work of compression of 2.0 mN·cm/cmor greater and a compression recovery rate of 40% or greater.


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