Yarn false twisting method and apparatus

Details Yarn false twisting method and apparatus Yarn false twisting method and apparatus

1984-02-24

1985-10-29

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

False twist device

57339, 57348, D02G 108

Patent

active

045493952

ABSTRACT:
A yarn false twisting method and apparatus is disclosed, and which includes a pair of oppositely rotating friction discs which are mounted with opposing faces to define a twisting zone therebetween. The yarn is advanced through the twisting zone to impart twist to the yarn in one direction, and the advancing yarn is deflected downstream of the discs so that the yarn is brought into frictional contact with the peripheral edge of one of the discs, to thereby impart an opposite twist to the yarn. The invention is useful in that it permits increased running speed and twist level, and the resulting yarn may be characterized by reduced instances of "tight spots" and less fuzziness resulting from filament breaks.

REFERENCES:
patent: 4339915 (1982-07-01), Dammann et al.
patent: 4370853 (1983-02-01), Bauer et al.
patent: 4391091 (1983-07-01), Lorenz
patent: 4408449 (1983-10-01), Bauer et al.

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