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Title:
NONWOVEN FABRIC FOR HYGIENE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2023/013790
Kind Code:
A1
Abstract:
A nonwoven fabric for hygiene according to the present invention comprises a fiber assembly which contains fibers that contain a polyamide resin, while having fusion points where the constituent fibers of the fiber assembly are fused with each other. This nonwoven fabric for hygiene has a volume filling rate of 3.5% or more. It is preferable that the constituent fibers are sheath-core composite fibers wherein the core is formed of a polyamide resin, while the sheath is formed of a high-density polyethylene resin. In a production method according to the present invention, a web of composite fibers that contain a polyamide resin is subjected to an air-through treatment, thereby obtaining a fiber assembly, and the fiber assembly is consolidated by being heated at a temperature that is not more than the melting point of the resin that constitutes the fiber assembly.

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Inventors:
KOBAYASHI NATSUMI (JP)
SANGAWA YUTA (JP)
Application Number:
PCT/JP2022/030248
Publication Date:
February 09, 2023
Filing Date:
August 08, 2022
Export Citation:
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Assignee:
KAO CORP (JP)
International Classes:
D04H1/4334; A41D13/11; A61F13/494; A61F13/511; A61F13/53; D01F8/06; D01F8/12; D04H1/541; D04H3/009; D04H3/16
Domestic Patent References:
WO2006112437A12006-10-26
Foreign References:
JP2020147857A2020-09-17
JPH083856A1996-01-09
JP2019052400A2019-04-04
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
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