Process for manufacturing an elastic bulk yarn

Details Process for manufacturing an elastic bulk yarn Process for manufacturing an elastic bulk yarn

1991-11-20

1994-05-24

Stodola, Daniel P.

Textiles: spinning, twisting, and twining

Apparatus and processes

Twist setting

57247, 57284, 57285, D02G 102, D01H 1328

Patent

active

053137760

ABSTRACT:
A friction-textured elastic yarn is prepared by twisting a single-component multifilament melt-spinnable polymer yarn having an initial modulus of 80 to 150 cN/tex and a melting point of at least 200.degree. C. at a speed of at least 200 m/min, the thus twisted yarn is heat-set at 160.degree. to 190.degree. C. to produce a fixated yarn, and the fixated yarn is friction-textured at a pretension of 0.5 to 3.0 cN/tex.

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