Method for preparation of slenderized animal fiber
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 6, 2004
Grant Date -
Apr 10, 2003
app pub date -
Sep 13, 2001
filing date -
Sep 13, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
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Abstract
A slenderized crimped animal fiber with a fixed slenderized form having a lowering rate of tensile strength for undyed spun yarn of no less than 10%, fiber contraction in boiling water of no more than 1%, an alkali solubility of no more than 22% by weight and a UB solubility of no more than 35% by weight, wherein the slenderized crimped animal fiber is prepared by being drawn by practically 1.20 to 1.60 times after an anisotropic swelling is given to the animal fiber consisting of bilateral structure using swelling plasticization with base.
First Claim
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