Spinning process for producing a yarn

Details Spinning process for producing a yarn Spinning process for producing a yarn

1997-08-06

1999-05-04

Stryjewski, William

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57 13, 57332, 57335, 57400, D01H 400

Patent

active

058990569

ABSTRACT:
In a spinning process for producing a yarn, fiber material in the form of at least one sliver is opened to a fibrous veil consisting of single fibers, and is deposited on an air-permeable suctioned collecting surface. The speed of the fibrous veil transported on the collecting surface is preferably not higher than the speed of the drawn off yarn. Before reaching the yarn formation line located on the collecting surface, the fibrous veil is divided into a plurality of fiber accumulations and thereby pre-twisted to strands. The position and travelling direction of the strands on the collecting surface is defined by guiding edges of suction slits. The individual strands are guided off transversely to the yarn formation line, whereby the extent of the pre-twist and the extent of the transport force is determined by the angle of the strands to the yarn formation line. Pre-twisted strands are wound around each other along the yarn formation line so that a type of ply-twisted yarn arises.

REFERENCES:
patent: 4539806 (1985-09-01), Stahlecker
patent: 4753066 (1988-06-01), Briner et al.
patent: 4773209 (1988-09-01), Briner et al.
patent: 4854118 (1989-08-01), Briner et al.
patent: 5090192 (1992-02-01), Stahlecker
patent: 5187930 (1993-02-01), Stahlecker
patent: 5222352 (1993-06-01), Stahlecker
patent: 5228281 (1993-07-01), Stahlecker
patent: 5241813 (1993-09-01), Rottmayr et al.

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