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Title:
WATER-ABSORBING FIBER PRECURSOR, WATER-ABSORBING NONWOVEN FABRIC PRECURSOR AND WATER-ABSORBING NONWOVEN FABRIC, FACE MASK CONTAINING THESE AND SKIN LOTION-FILLED FACE MASK, AND MANUFACTURING METHOD OF THERE
Document Type and Number:
WIPO Patent Application WO/2019/146465
Kind Code:
A1
Abstract:
[Problem] In a face mask soaked with skin lotion, etc., a nonwoven fabric including a water-absorbing fiber is used in order to improve liquid retainability and wearing comfort. Such a nonwoven fabric is manufactured mainly by thermal bonding, but there is few interlacing of fibers and fluff tends to remain on the skin after being worn. Although spun lacing is effective for fluff reduction, there is difficulty applying it to water-absorbing fibers that swell by absorbing water. The present invention provides a spun-laced water-absorbing nonwoven fabric. [Solution] A water-absorbing fiber precursor characterized by having a 0.1-5.0 mmol/g H-type carboxyl group and an under 0.5 mmol/g salt-type carboxyl group, the total amount of the H-type carboxyl group and salt-type carboxyl group being 0.5 mmol/g or greater, the coefficient of water absorption being 10-1,000 mass%, and the coefficient of water absorption when the degree of neutralization of the carboxyl group is adjusted to 50% being 500-50,000 mass%.

Inventors:
SHIMIZU Haruki (Japan Exlan Company Limited 3-3-1, Kanaoka-Higashimachi, Higashi-ku, Okayama-sh, Okayama 10, 〒7048510, JP)
Application Number:
JP2019/001048
Publication Date:
August 01, 2019
Filing Date:
January 16, 2019
Export Citation:
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Assignee:
JAPAN EXLAN COMPANY LIMITED (2-8 Dojima Hama 2-chome, kita-ku Osaka-sh, Osaka 04, 〒5300004, JP)
International Classes:
D06M11/63; A45D44/22; D01F8/08; D04H1/492; D06M11/00; D06M11/38; D06M101/28
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