Process and apparatus for manufacturing a drawn and twisted mult

Details Process and apparatus for manufacturing a drawn and twisted mult Process and apparatus for manufacturing a drawn and twisted mult

1979-01-09

1980-08-05

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

With stretching

57 5849, 57282, D01H 110, D01H 786, D02J 122

Patent

active

042155304

ABSTRACT:
In a process and apparatus for manufacturing drawn and twisted multifilament synthetic yarn an extruded and partially drawn filamentary synthetic yarn is subjected to a supplementary, simultaneous, drawing and twisting operation using a double twist spindle rotated such that the tension in the yarn causes drawing. After the spinning and drawing, the yarn is subjected to heat treatment under controlled tension and is then wound up.

REFERENCES:
patent: 2979882 (1961-04-01), Bromley et al.
patent: 3383850 (1968-05-01), Ratti
patent: 3525205 (1970-08-01), Antoni et al.
patent: 3771307 (1973-11-01), Petrille
patent: 3775961 (1973-12-01), Womer

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