Process and apparatus for simultaneously drawing and false-twist

Details Process and apparatus for simultaneously drawing and false-twist Process and apparatus for simultaneously drawing and false-twist

1981-04-20

1983-08-16

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Twist setting

57282, 57290, D02G 102, D02G 116

Patent

active

043983863

ABSTRACT:
A process and an apparatus for simultaneously drawing and false-twisting a thermoplastic synthetic yarn, in or by which an undrawn or a partially drawn yarn is drawn under a dry hot condition in a condition of the yarn being false-twisted by twist transmitted from a false-twister and immediately thereafter heat-set under a wet hot condition prior to untwisting.
The apparatus includes a yarn heater, which comprises a dry heater disposed on the side of a feeding device for the undrawn or partially drawn yarn and a wet heater on the side of a false-twister along the yarn passing direction.

REFERENCES:
patent: 3910027 (1975-10-01), Bach et al.
patent: 4120141 (1978-10-01), Lopatin et al.
patent: 4164116 (1979-08-01), Kimura et al.

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