Roller for an open-end friction spinning arrangement

Details Roller for an open-end friction spinning arrangement Roller for an open-end friction spinning arrangement

1987-08-19

1988-09-13

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

D01H 112

Patent

active

047699833

ABSTRACT:
A friction surface construction for open-end friction spinning of the type having a movable friction spinning member with yarn forming surface portions that imparts friction to fibers and to forming yarn is provided. The yarn forming surface portions include first surface areas surrounding air passage openings in the friction spinning member. Second surface areas are provided in between the first surface areas. At least a portion of the first surface areas include a section having a coefficient of friction value different than a coefficient of friction value of the second surface areas. A process for forming the friction surface construction is also provided.

REFERENCES:
patent: 4107909 (1978-08-01), Fehrer et al.
patent: 4241571 (1980-12-01), Turk et al.
patent: 4327545 (1982-05-01), Fehrer
patent: 4334400 (1982-06-01), Fehrer
patent: 4399650 (1983-08-01), Parker et al.
patent: 4522022 (1985-06-01), Parker et al.
patent: 4696155 (1987-09-01), Stalder et al.
patent: 4698960 (1987-10-01), Nerli et al.

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