Method of an apparatus for spinning-in yarn in open-end spinning

Details Method of an apparatus for spinning-in yarn in open-end spinning Method of an apparatus for spinning-in yarn in open-end spinning

1981-02-04

1983-05-24

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

57301, 57415, D01H 1500

Patent

active

043844510

ABSTRACT:
Improved yarn spinning-in process and apparatus in open-end rotor spinning units which raises the quality of the spun-in point in the yarn to a level comparable with the quality of the entire yarn length. The yarn open end is pieced on to high-quality fibers while low-grade fibers are separated from the high-quality fibers and do not participate in the spinning-in process.

REFERENCES:
patent: 4020622 (1977-05-01), Lattion
patent: 4022011 (1977-05-01), Hirai
patent: 4059946 (1977-11-01), Bottcher
patent: 4089155 (1978-05-01), Stahlecker
patent: 4222225 (1980-09-01), Stahlecker

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