Title: Method and apparatus for producing plied yarn and product thereof

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.

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Inventors: Clarkson, Robert J. (Winnsboro, SC, US)

Application Number: 478542
Filing Date: 1974-06-11
Publication_date: 1977-07-12
Assignee: Uniroyal Inc. (New York, NY)
Primary Class(es): 57/284 57/58.3, 57/290
Other Classes:
US Patent Ref:

2881504	Apr, 1959	Billion	57/157.
3383850	May, 1968	Ratti	57/157.
3422613	Jan, 1969	Berge, Jr. et al.	57/34.
3638410	Feb, 1972	Scherzberg et al.	57/34.
3668857	Jun, 1972	Goy et al.	57/157.
3820316	Jun, 1974	Clarkson	57/34.

Other Refs:
Primary Examiner: Petrakes, John
Assistant Examiner:
Attorney: Bazerman; Steven H.