Textiles: spinning – twisting – and twining – Apparatus and processes – False twist device
Patent
1994-08-26
1997-04-15
Stryjewski, William
Textiles: spinning, twisting, and twining
Apparatus and processes
False twist device
28252, 57 78, 57 81, 57 95, 57 98, 57 99, 57206, 57283, 57328, 57350, 57908, D01H 500, D01H 746
Patent
active
056198493
ABSTRACT:
A method and apparatus for producing randomly variegated multiple strand yarn in twisting together two or more yarns at a plurality of yarn twisting stations. At each station a pneumatic twisting head is disposed in which randomly turbulent air currents are created in a chamber in the twisting head by compressed air flowing into the chamber from a manifold through bores in the twisting head, thereby randomly twisting together two or more yarns in the chamber. The yarns which have been twisted together are taken up over a plurality of traversing drums commonly mounted on a shaft which is driven by an alternating electric current motor controlled by a control device which operates to start and restart the motor on a predetermined cycle including a variation of the electrical input sufficient to result in randomly unpredictable inertia resistance of the traversing drums to rotational speed variation, thereby creating randomly unpredictable take-up of the yarns to produce non-uniform random twist in the yarns. The yarn produced has various lengths of opposite twist with varying degrees of twist and sections of no twist, and the fabric produced with the yarn is randomly variegated with no repeating pattern.
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Caress Yarns, Inc.
Stryjewski William
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