Friction false twister

Details Friction false twister Friction false twister

1976-07-28

1977-10-04

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Receiving twist type

D02G 104, D01H 792

Patent

active

040516555

ABSTRACT:
In combination with a friction false twist assembly including yarn supply means to feed a synthetic filamentary polymer yarn to a friction false twisting device and yarn take-up means to collect a false twist texturized yarn from the twisting device, preferably with means to heat-set the false twisted yarn being fed to the twisting device, this invention provides an improved friction false twist element comprising an axially elongated rotational body having a sleeve hub with a plurality of disc-shaped flanges formed integrally thereon at axially spaced positions, the integral hub and flanges being made of a molded, durable and rigid plastics material, e.g. a thermosetting resin, each flange carrying a circular yarn contacting ring as a rim fastened thereto and providing a wear-resistant, roughened outer circumferential surface ideally suited to the friction twisting of the yarn. In a preferred form, the twist element is made up of a thin metallic layer onto which a wear-resistant surface layer is applied. By including a metallic powder filler in the plastic rotational body, sufficient thermal conductivity can be maintained to transfer heat away from the yarn contacting surface.

REFERENCES:
patent: 3552112 (1971-01-01), Chabot
patent: 3901011 (1975-08-01), Schuster
patent: 3919833 (1975-11-01), Horvath et al.
patent: 3921379 (1975-11-01), Smith
patent: 3964248 (1976-06-01), Schuster

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