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LATENTLY CRIMPING RAW SILK AND ITS PRODUCTION, AND CRIMPING SILK YARN OBTAINED FROM THE LATENTLY CRIMPING SILK
LATENTLY CRIMPING RAW SILK AND ITS PRODUCTION, AND CRIMPING SILK YARN OBTAINED FROM THE LATENTLY CRIMPING SILK
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机译：潜在生丝及其生产，以及从生丝获得的生丝
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摘要
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 70-80C to provide the latently crimping silk yarn maintaining the seizability in a dry air state until being converted into an elastic bulky yarn.;COPYRIGHT: (C)1997,JPO
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