False twist machine

Details False twist machine False twist machine

1978-12-18

1980-08-26

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Twist setting

57334, 57337, 57338, 57339, D01H 792, D02G 108

Patent

active

042188709

ABSTRACT:
An improved false twist machine employing a friction disc arrangement which provides high twist in the multi-filament yarn on the entering side and increased yarn feeding rate on the outlet side to reduce the tension of the exiting yarn to lessen the number of filament breaks. The friction disc arrangement has discs of increased thickness to diameter ratio on the entering side when compared to the exit side, to provide increased yarn angle to accomplish the desired high twist. The reduced thickness to diameter ratio on the exit side increases yarn forwarding action, thus reducing the outlet tension.

REFERENCES:
patent: 3287890 (1966-11-01), McIntosh et al.
patent: 3901011 (1975-08-01), Schuster
patent: 3998041 (1976-12-01), Graf et al.
patent: 4115987 (1978-09-01), Taniguchi et al.
patent: 4134252 (1979-01-01), Otaki et al.

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