False twist yarns and production method and production device therefor
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United States of America Patent
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Apr 6, 2004
Grant Date -
Mar 6, 2003
app pub date -
Nov 5, 2001
filing date -
Mar 24, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A false twist yam including synthetic fiber yam having elongation, crimp rigidity, crimp appearance stretch ratio, dry heat shrinkage stress maximum value, deformation degree of single filament and entanglement number in specific ranges respectively. The yam has good drape properties, soft feeling, bulkiness, and flexibility as well as puff properties, mild luster, and pliable dry feeling. From the yam, woven or knit fabrics having novel texture that cannot be achieved in woven or knit fabrics produced from conventional drawn or false twist yams. The false twist yam is produced in a drawing and false twisting process.
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