Title: Process for texturing polyester yarn

Abstract: A process for draw-texturing polyester yarn which has been melt-spun at high speed. The process is performed on a conventional false-twist texturing machine modified for drawing and for the use of an air-jet texturing device instead of a second heater. The yarn is drawn at 1.3 to 2.0X draw ratio, false-twist textured, and then air-jet textured to provide a yarn having a low boil-off shrinkage, resiliency and spun-like aesthetics.

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Inventors: Gorrafa, Adly Abdel-moniem (Hockessin, DE, US)

Application Number: 497489
Filing Date: 1974-08-14
Publication_date: 1976-08-10
Assignee: E. I. Du Pont de Nemours and Company (Wilmington, DE)
Primary Class(es): 28/258 28/220, 28/246, 28/271, 57/286, 57/288, 57/350, 264/136
Other Classes:
US Patent Ref:

3309855	Mar, 1967	Stoll et al.	57/34.
3460336	Aug, 1969	Collingwood et al.	57/34.
3605393	Sep, 1971	Schroeder	57/34.
3772872	Nov, 1973	Piazza et al.	57/140.
3785135	Jan, 1974	Seem et al.	57/34.
3824776	Jul, 1974	Londo, Jr.	57/157.

Other Refs: 48-83641,029,097

Jun, 1973	JA.
May, 1966	UK

Other References: "Research Disclosure", --Apr. 1973; p. 29.