Composite spun yarn and process for producing the same

Details Composite spun yarn and process for producing the same Composite spun yarn and process for producing the same

1975-06-30

1978-01-24

Queisser, Richard C.

Textiles: spinning, twisting, and twining

Apparatus and processes

Elements

57144, 57157F, D02G 338

Patent

active

040696561

ABSTRACT:
A novel process for producing yarns at high speed by drafting a sliver or roving of short fibers. The process dispenses with rings, travellers or spindles, and a single gas false twist member is effectively used. The process comprises leading a bundle of short fibers to said false twist member and feeding to the twisting zone of the bundle of short fibers an extremely fine multifilament yarn preferably in contact over a rotary body, at a sufficiently low tension and at a speed faster by 50-90% than the spinning speed of the bundle of short fibers so as to restrain the fiber bundle within one-directional spirals and two-directional composite spirals. The resulting composite spun yarn has a good touch because the fiber bundle has become non-twisted. By changing production conditions, the yarn can be formed into any desired shape from even yarn to nep yarn.

REFERENCES:
patent: 2731789 (1956-01-01), Holder
patent: 3403501 (1968-10-01), Nuissl
patent: 3427647 (1969-02-01), Field, Jr.
patent: 3439491 (1969-04-01), Scruggs
patent: 3685268 (1972-08-01), Seguin
patent: 3722202 (1973-03-01), Indarte
patent: 3756005 (1973-09-01), Seguin
patent: 3763640 (1973-10-01), Nagel et al.
patent: 3945189 (1976-03-01), Allen

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