Manufacture of bulked yarn

Details Manufacture of bulked yarn Manufacture of bulked yarn

1977-02-07

1978-04-04

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Web material

57157S, 57157TS, D02G 102

Patent

active

040819485

ABSTRACT:
Textile filaments are melt-spun, formed into a yarn, heated, cooled and false twisted while being simultaneously drawn, the upstream propagation of twist from the false twist device being arrested at the entry to the heater and the draw point of the yarn being stabilized on the heater. The twist arresting and draw point stabilizing means may be an abutment or pin with some filaments passing on each side, a radially pinned rotor, nip rolls or two parallel plates between which single filaments, but not twisted yarn, may pass. The false twist crimped yarn may be heat relaxed before wind up.

REFERENCES:
patent: 3729916 (1973-05-01), Lusk et al.
patent: 3733801 (1973-05-01), Jones
patent: 3793817 (1974-02-01), Beringer et al.
patent: 3796036 (1974-03-01), Parker
patent: 3797775 (1974-03-01), White
patent: 3840630 (1974-10-01), Yamada et al.
patent: 3939637 (1976-02-01), Franz et al.

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