Manufacture of crimped polyamide filaments yarn

Details Manufacture of crimped polyamide filaments yarn Manufacture of crimped polyamide filaments yarn

1975-02-24

1976-08-17

Woo, Jay H.

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

With crimping or crinkling of strands of filaments

28 13, 28 7211, 28 7217, 264177F, 264210F, 264290N, D01D 522, D01D 512

Patent

active

039754847

ABSTRACT:
A method for the manufacture of crimped polyamide filament yarns. Polyamide filaments having non-circular cross sections are melt-spun, allowed to cool, and treated with a substantially non-aqueous oiling agent. They are passed around a feed roll, are passed in contact with a heated body having a curved surface and thus subjected to one-sided heating and then to drawing, are passed around a heated draw roll, and then are passed through a steam jet.

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