Textiles: spinning – twisting – and twining – Apparatus and processes – Web material
Patent
1974-06-11
1977-07-12
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
Web material
57140R, 57157TS, D02G 102
Patent
active
040345440
ABSTRACT:
A method and apparatus for producing either bulked continuous filament or spun staple yarn in one continuous operation are disclosed. In the method, a first single end of either continuous filament or spun staple yarn is ballooned about and plied with a like second single end of yarn while both are under tension and advancing at a common linear speed. A higher tension is utilized during the plying operation. The plied yarn is then subjected to heat while the tension is relaxed, followed by a cooling and drying stage, to enable the yarn to be twist-set in a bulked condition, with the component single ends substantially free of any twist memory. This abstract is not to be taken either as a complete exposition or as a limitation of the present invention, however, the full nature and extent of the invention being discernible only by reference to and from the entire disclosure.
REFERENCES:
patent: 2881504 (1959-04-01), Billion
patent: 3383850 (1968-05-01), Ratti
patent: 3422613 (1969-01-01), Bergen, Jr. et al.
patent: 3638410 (1972-02-01), Scherzberg et al.
patent: 3668857 (1972-06-01), Goy et al.
patent: 3820316 (1974-06-01), Clarkson
Bazerman Steven H.
Petrakes John
Uniroyal Inc.
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