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Title:
LEATHERY SHEET AND FIBER STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2018/221452
Kind Code:
A1
Abstract:
A leathery sheet including a fiber structure that includes a fiber dyed with a dye that includes a blue cationic dye having an azo bond and an elastic polymer added to the internal gap of the fiber structure and further including a polyhydric phenol derivative having anionic properties, or a fiber structure. A leathery sheet including a fiber structure that includes a fiber dyed with a dye that includes a blue cationic dye having an azo bond or an elastic polymer added to the internal gap of the fiber structure, wherein the color difference (ΔE) before and after being wet heat-treated under 80°C and 90% humidity conditions for 48 hours is less than or equal to 2.

Inventors:
FUJISAWA Michinori (Ltd. 1-2-1 Kaigandori, Minami-ku, Okayama-sh, Okayama 01, 〒7028601, JP)
ANDO Tetsuya (Ltd. 8-1Kakudacho,Kitaku,Osaka-sh, Osaka 11, 〒5308611, JP)
HISHIDA Hiroyuki (Ltd. 1-2-1 Kaigandori, Minami-ku, Okayama-sh, Okayama 01, 〒7028601, JP)
MURATE Yasunori (Ltd. 1-2-1 Kaigandori, Minami-ku, Okayama-sh, Okayama 01, 〒7028601, JP)
Application Number:
JP2018/020344
Publication Date:
December 06, 2018
Filing Date:
May 28, 2018
Export Citation:
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Assignee:
KURARAY CO., LTD. (1621, Sakazu Kurashiki-sh, Okayama 01, 〒7100801, JP)
International Classes:
D06N3/00; D06M13/152; D06P1/08; D06P3/52
Domestic Patent References:
WO2018101016A12018-06-07
Foreign References:
JPH08209551A1996-08-13
JP2009074197A2009-04-09
JPH0457978A1992-02-25
Attorney, Agent or Firm:
EGAWA Masaru et al. (EGAWA PATENT ATTORNEYS OFFICE, 2F Sun BUILDING 7-4-18, Fuchucho, Izumi-sh, Osaka 71, 〒5940071, JP)
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