Dual nip open-end friction spinning

Details Dual nip open-end friction spinning Dual nip open-end friction spinning

1986-07-07

1988-03-01

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Delivery twist type

57408, D01H 1135

Patent

active

047277165

ABSTRACT:
To improve integration of fibers into a yarn end and thereby improve yarn quality, fibers are directed to a feeding nip defined on an opposite side of a pair of friction rollers forming a spinning nip. The fibers are directed out of the feeding nip, passed between the friction rollers, and forwarded into the spinning nip. One of the friction rollers may constitute a conveying roller which exerts greater force upon the fibers than the other roller to securely convey fibers through a gap between the rollers and into the spinning nip.

REFERENCES:
patent: 3913310 (1975-10-01), Fehrer
patent: 4060966 (1977-12-01), Konig
patent: 4202163 (1980-05-01), Turk et al.
patent: 4281507 (1981-08-01), Didek et al.
patent: 4327545 (1982-05-01), Fehrer
patent: 4358923 (1982-11-01), Feldstein
patent: 4404792 (1983-09-01), Parker
patent: 4537022 (1985-08-01), Stahlecker
patent: 4557105 (1985-12-01), Brockmanns et al.
patent: 4571932 (1986-02-01), Stahlecker et al.
patent: 4625505 (1986-12-01), Raasch et al.

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