LATENTLY CRIMPING RAW SILK AND ITS PRODUCTION, AND CRIMPING SILK YARN OBTAINED FROM THE LATENTLY CRIMPING SILK

Japanese Patent JP3723949

B2

PROBLEM TO BE SOLVED: To obtain a latently crimping raw silk maintained in seizability, excellent in elasticity and bulkiness, and useful for knitting fabric industry, etc., by immersing raw silk in a solution containing an enzyme having a protein- decomposing action, etc., and subsequently treating the immersed silk under specific conditions.
SOLUTION: Raw silk fibers are immersed in a solution containing a protease such as amylase and a surfactant, and the swollen and water-saturated raw silk fibers are immersed in a treating agent for smoothing and softening the silk fibers and preventing the mutual adhesion of the silk fibers so as to maintain a residual sericin content of ≥40%. The treated raw silk fibers are, if necessary, doubled, etc., to give a prescribed fineness. The treated silk fibers are imparted with a substantially non-twisted latently crimping property by a strongly twisting-high humidity high pressure wet thermal set-untwisting method, and finally subjected to an after-set treatment at approximately 70-80°C to provide the latently crimping silk yarn maintaining the seizability in a dry air state until being converted into an elastic bulky yarn.

WO/2001/046357	DETERGENT COMPOSITIONS COMPRISING BENEFIT AGENTS
WO/1992/006165	DETERGENT COMPOSITIONS CONTAINING CELLULASE COMPOSITIONS DEFICIENT IN CBH I TYPE COMPONENTS

Satoshi Kato
Tasuke Sakai
Takeshi Nagai

JP30378495A

December 07, 2005

October 27, 1995

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Matsuoka Kikai Co., Ltd.

D06M16/00; D01B7/00; D02G1/02; D06M101/00; D06M101/02; D06M101/10; D06M101/12; (IPC1-7): D06M16/00; D02G1/02

JP61070074A
JP4108169A

Minoru Sasaki

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