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Patent Searching and Data


Title:
ARTIFICIAL LEATHER
Document Type and Number:
WIPO Patent Application WO/2022/113708
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a natural leather-like patterned artificial leather which has a pattern with excellent wear resistance, while having an excellently delicate design, and which is applicable to artificial leathers that contain a black pigment in ultrafine fibers or in an elastomer. An artificial leather according to the present invention is composed of: a fiber entangled body which comprises, as a constituent, a nonwoven fabric that is configured from ultrafine fibers that are formed from a thermoplastic resin, while having an average single fiber diameter of from 1 μm to 10 μm; and an elastomer. At least one surface of the artificial leather is a design surface that has at least a piloerection part and a fused part; if the content of the thermoplastic resin in the piloerection part is taken as 100 parts by mass, the content of the thermoplastic resin in a fused material in the fused part is from 99 parts by mass to 100 parts by mass; the difference between the thickness of the piloerection part and the thickness of the fused part is from 0.05 mm to 0.20 mm; and the formulae (1) to (3) described below are satisfied. (1): E* ab ≥ 5 (2): 0 ≤ ∆H* ab ≤ 1 (3): 2D ≤ φ ≤ 150

Inventors:
SAKAGAMI KONOMI (JP)
HONDA SEIICHIRO (JP)
SHINOZAKI ATSUSHI (JP)
Application Number:
PCT/JP2021/040912
Publication Date:
June 02, 2022
Filing Date:
November 08, 2021
Export Citation:
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Assignee:
TORAY INDUSTRIES (JP)
International Classes:
D06N3/00
Domestic Patent References:
WO2018211838A12018-11-22
Foreign References:
JP2002371478A2002-12-26
JPS5865074A1983-04-18
JPH07292579A1995-11-07
JPS5721573A1982-02-04
JPS56112574A1981-09-04
JP2017222962A2017-12-21
CN112538767A2021-03-23
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