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Title:
SEA-ISLAND TYPE COMPOSITE MULTIFILAMENT, ULTRAFINE MULTIFILAMENT, AND ULTRAFINE FIBER STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2022/154035
Kind Code:
A1
Abstract:
The present invention provides: a sea-island type composite multifilament which comprises a thermoplastic elastomer resin as an island component; and an ultrafine multifilament which is obtained from this sea-island type composite multifilament. With respect to this sea-island type composite multifilament, the island component is configured from a thermoplastic elastomer resin (A) that has one of a Shore A hardness of 90 or less, a Shore D hardness of 60 or less, and a Rockwell hardness (R scale) of 70 or less; the sea component is configured from a water-soluble or highly alkali-soluble thermoplastic resin (B); and the average single island diameter is 8000 nm or less.

Inventors:
IKEDA TAKAYUKI (JP)
NAKATSUKA HITOSHI (JP)
KAWAKADO SHINYA (JP)
YAMASAKI KOHEI (JP)
Application Number:
PCT/JP2022/000846
Publication Date:
July 21, 2022
Filing Date:
January 13, 2022
Export Citation:
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Assignee:
KURARAY TRADING CO LTD (JP)
International Classes:
D01F8/12; D01F6/00; D01F8/10; D01F8/14; D03D15/33; D03D15/56; D04B1/18; D04B21/00
Foreign References:
JPS4735324B11972-09-05
JP2019189993A2019-10-31
JP2014025153A2014-02-06
JP2012207220A2012-10-25
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (JP)
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