Process for preparing a high strength aramid spun yarn
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United States of America Patent
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Oct 22, 1985
Issued Date -
N/A
app pub date -
Aug 17, 1984
filing date -
Jun 18, 1982
priority date (Note) -
Expired
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Abstract
High strength, high modulus, continuous filament aromatic polyamide yarns are stretch broken under high tension while being sharply deflected in a lateral direction by mechanical means to provide a sliver which is processed by conventional means to a high strength, high modulus spun yarn. The broken ends of the fibers are highly fibrillated to fibrils having lengths of 50-350 times the diameter of the unfibrillated portion of each fiber.
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