SURFACE MATERIAL FOR SANITARY MATERIAL AND PRODUCTION METHOD THEREFOR

WIPO Patent Application WO/2022/004505

A1

[Problem] To provide a production method for a surface material for sanitary material, the surface material having improved wear resistance without reducing the feel of the surface that comes in contact with skin. [Solution] This production method for a surface material for sanitary material comprises the following steps. SMS nonwoven fabric and a cotton fiber web formed from cotton fibers are laminated to obtain a laminated body. The SMS nonwoven fabric herein is obtained by laminating first long fiber nonwoven fabric, ultrafine fiber nonwoven fabric, and second long fiber nonwoven fabric in this order. The laminated body is subjected to high pressure water processing to mutually interlace the cotton fibers and mutually interlace the long fibers. The ultrafine fiber nonwoven fabric is broken with high pressure water to drain off a large amount of the ultrafine fibers and to retain a part of the ultrafine fibers in the part at which cotton fibers are mutually interlaced, causing entanglement. A surface material in which bonding between cotton fibers is strengthened is obtained thereby. The surface on the cotton fiber web-side of the obtained surface material forms the surface that comes in contact with skin.

MATSUNAGA ATSUSHI (JP)
MORI SHOTARO (JP)
TSUKAHARA TAICHI (JP)
ICHIKAWA TARO (JP)
SAZA NORIHITO (JP)

PCT/JP2021/023703

January 06, 2022

June 23, 2021

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UNTIKA LTD (JP)
MITSUI CHEMICALS INC (JP)

D04H5/03; A61F13/511

JP2001040564A	2001-02-13
JPH0288058A	1990-03-28
JPH10251960A	1998-09-22
JP3218416U	2018-10-11
JPH0768687A	1995-03-14

OKUMURA Shigeki (JP)

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