Slub yarn and method of forming same

Details Slub yarn and method of forming same Slub yarn and method of forming same

1977-10-25

1979-03-27

Watkins, Donald

Textiles: spinning, twisting, and twining

Strand structure

Longitudinal variation

28271, 57208, 57238, 428399, 57248, 57350, D02G 334, D02G 116

Patent

active

041458699

ABSTRACT:
There is disclosed a variable denier, multifilament yarn having a slub yarn plied with a carrier yarn and displaying high weaving performance. The yarn is characterized by a certain slub size distribution, a certain minimum number of slubs, a specified maximum number of large slubs, less than one tight spot per meter and a coherency factor of from about 4-14, said coherency factor increasing as the number of large slubs increases. A process for making the yarn is also disclosed and includes the features of feeding both feed yarn and carrier yarn to a supply jet, the feed yarn being overfed while the carrier yarn is maintained under zero net overfeed, forwarding the carrier yarn to a slub jet and forwarding the feed yarn to a foraminous surface where slubs are created and thereafter combining both yarns and passing them sequentially through a slub jet, at least one interlacing jet and, optionally, a torque jet.

REFERENCES:
patent: 2878548 (1959-03-01), Lohr et al.
patent: 3104516 (1963-09-01), Field
patent: 3116589 (1964-01-01), Edwards et al.
patent: 3174271 (1965-03-01), Edwards et al.
patent: 3296785 (1967-01-01), Hardy
patent: 3403501 (1968-10-01), Nuissl
patent: 3457715 (1969-07-01), Eldridge et al.
patent: 3474613 (1969-10-01), Joarder
patent: 3701248 (1972-10-01), Gray
patent: 3812668 (1974-05-01), Wilson

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