Textiles: spinning – twisting – and twining – Apparatus and processes – Elements
Patent
1975-03-13
1977-06-14
Watkins, Donald
Textiles: spinning, twisting, and twining
Apparatus and processes
Elements
57 34HS, D01H 792, D02G 102
Patent
active
040288757
ABSTRACT:
Thermoplastic multifilament feed yarns, such as polyester feed yarns are heatset in a twisted state at a temperature and under a tension so as to produce a torque yarn; and thereafter continuously, and at substantially the same tension, cooled, detwisted, and subjected to a second heat treatment so as to reduce the torque. If undrawn or partially drawn feed yarn is employed, the yarn may be orientation drawn during the texturing process.
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Gilmer Donald G.
Yu Jing-Peir
Broad, Jr. Robert L.
Monsanto Company
Watkins Donald
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