Method and apparatus for making alternate twist plied yarn and p

Details Method and apparatus for making alternate twist plied yarn and p Method and apparatus for making alternate twist plied yarn and p

1996-09-10

1997-07-08

Stryjewski, William

Textiles: spinning, twisting, and twining

Apparatus and processes

Alternate twist

57204, 57236, 57242, 57297, 57333, D01H 500, D01H 746

Patent

active

056449097

ABSTRACT:
An alternate twist plied yarn formed from a plurality of strands of singles yarn twisted in alternating directions in lengthwise intervals of first half-cycles of twist at a predetermined twist level followed by second half-cycles of twist at the same twist level with reversal nodes therebetween, the singles twisted yarns being ply-twisted together in alternating directions in lengthwise intervals of first half-cycles of ply-twist followed by second half-cycles of ply-twist, there being a bond formed adjacent each node wherein the first half-cycle of ply-twist is located within the bond and the second half-cycle of ply-twist originates at one end of the bond, the twist level in the singles twisted yarn is between 25% in the same direction and 60% in the opposite direction of the twist applied to the singles yarns before plying.

REFERENCES:
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patent: 4873821 (1989-10-01), Hallam et al.
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patent: 5179827 (1993-01-01), Tinsley et al.
patent: 5228282 (1993-07-01), Tinsley et al.

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