Method and apparatus for controlling twist in yarn

Details Method and apparatus for controlling twist in yarn Method and apparatus for controlling twist in yarn

1977-11-11

1979-11-13

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Alternate twist

57290, D02G 328, D02G 116

Patent

active

041738616

ABSTRACT:
Singles yarns are formed from a synthetic material, twisted in one direction, heat-set, cooled and false-twisted in the opposite direction. Two similarly treated strands are joined at their nodes and plied, resulting in an improved ply-twist singles twist ratio. The first twisting and heat-setting can be done concurrently using jet twisting with steam, and apparatus for accomplishing this is disclosed.

REFERENCES:
patent: Re27717 (1973-08-01), Breen et al.
patent: 2711627 (1955-06-01), Leath
patent: 3309855 (1967-03-01), Stoll et al.
patent: 3468120 (1969-09-01), Hildebrand
patent: 3477218 (1969-11-01), Hawtin et al.
patent: 3717988 (1973-02-01), Walls
patent: 3855775 (1974-12-01), Valdelievre
patent: 3978647 (1976-09-01), Kosaka et al.
patent: 4016715 (1977-04-01), London
patent: 4055039 (1977-10-01), Movshovich et al.
patent: 4074511 (1978-02-01), Chambley et al.

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