Conjugated fiber, base body for artificial leather, and artificial leather

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United States of America Patent

PATENT NO 9970129
SERIAL NO

14368176

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Abstract

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The present invention provides a conjugated fiber suitable for use as a crimped fiber capable of producing an artificial leather having highly dense texture and good quality. The present invention also provides a base body for an artificial leather and an artificial leather produced by using such conjugated fiber. The conjugated fiber of the present invention includes a conjugated fiber comprising a readily soluble polyester component and a less readily soluble component, and the readily soluble polyester component comprises a copolymerized polyester having 5 to 10% by mole of 5-sodium sulfoisophthalate copolymerized therewith and the readily soluble polyester component contains a polyalkylene glycol. The polyalkylene glycol is in the form of streaks extending in longitudinal direction of the fiber in the longitudinal cross section of the conjugated fiber.

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Patent Owner(s)

Patent OwnerAddress
TORAY INDUSTRIES INC1-1 NIHONBASHI-MUROMACHI 2-CHOME CHUO-KU TOKYO 103-8666

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsuzaki, Yukihiro Gifu, JP 14 24
Nishimura, Hajime Otsu, JP 53 278
Nishimura, Makoto Otsu, JP 120 1759

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