System for producing yarn

Details System for producing yarn System for producing yarn

1989-06-30

1990-05-08

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Covering or wrapping

57 3, 57 6, 57210, 57315, D02G 336, D02G 338

Patent

active

049227017

ABSTRACT:
A core/wrap yarn is formed on a conventional ring-spinning yarn system by including a gripper nip immediately downstream from and closely adjacent to the front roller nip of the system; feeding a core strand and at least one wrap stand on each side of the core strand from the front roller nip to the gripper nip, wherein the wrap strands are spaced from the core strand at the front roller nip and converge with the core strand in the gripper nip to wrap around the core strand in the gripper nip so as to form wrapped yarn which then is passed through a ring traveler on to the wind-up system.

REFERENCES:
patent: 2859583 (1958-11-01), Parker
patent: 2990673 (1961-07-01), Adkins, Jr.
patent: 3090081 (1963-05-01), Klein
patent: 3350867 (1967-11-01), Morrison et al.
patent: 3778988 (1983-12-01), White et al.
patent: 4368611 (1983-01-01), Mainka et al.
patent: 4519195 (1985-05-01), Belin et al.
patent: 4584830 (1986-04-01), Faure et al.

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