High speed process for making fully-oriented nylon yarns and yar

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428 363, 428 369, 428364, 428392, 428395, 2421183, B65H 7502

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active

059810068

ABSTRACT:
A coupled spin-draw process for making a fully-oriented nylon yarn including extruding molten nylon polymer with a selected RV through a spinneret and cooling to produce a yarn. The yarn is withdrawn from the quench zone with a feed roll rotating at a speed of at least 4500 mpm. The process further includes cold drawing followed by relaxing the yarn using a steam intermingling jet and then winding up.

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JP60104515, Patent Abstracts of Japan, Process for Direct Spinning and Drawing of Polyamidefiber, Jun. 20, 1986, vol. 9, No. 247, Satou Takuji.

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