Method and device for improving a yarn produced in the rotor of

Details Method and device for improving a yarn produced in the rotor of Method and device for improving a yarn produced in the rotor of

1988-02-22

1989-05-16

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57334, 57341, 57344, 57352, D01H 7882, D02G 104

Patent

active

048297623

ABSTRACT:
A method and a device for improving a yarn produced with genuine twist in the rotor of an open-end spinning apparatus directs the yarn through a yarn take-off nozzle in a given yarn travel direction. The yarn is subsequently diverted from the given yarn travel direction first to one side and then back to the opposite side over false-twist edges disposed obliquely relative to the given yarn travel direction including a last false-twist edge. Outer fiber ends of the traveling yarn are spread radially apart after passing the last false-twist edge. The yarn is subsequently passed through a pair of delivery rollers.

REFERENCES:
patent: 3789597 (1974-02-01), Schon
patent: 4258541 (1981-03-01), Le Chatelier et al.
patent: 4458477 (1984-07-01), Raasch et al.
patent: 4481766 (1984-11-01), Kurushima et al.
patent: 4499719 (1989-02-01), Faessler
patent: 4516397 (1985-05-01), Raasch et al.
patent: 4665687 (1987-05-01), Ott et al.

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