D - Textiles – Paper – 02 – J
Patent
D - Textiles, Paper
02
J
118/27, 28/34
D02J 1/16 (2006.01) D02G 1/02 (2006.01) D02J 1/08 (2006.01)
Patent
CA 1107043
ABSTRACT OF THE DISCLOSURE A continuous process is disclosed for producing a heather yarn from a continuous filament polyester feed yarn having a residual draw ratio in the range of from 1.6 to 2.0 and a continuous filament polyamide feed yarn having a residual draw ratio in the range of from 106 to 120 per- cent of the residual draw ratio of the polyester feed yarn. The process involves the steps of: (1) combining the yarns; (2) false twist texturing and drawing the combined yarns in a draw-texturing zone comprising feed rolls, a heating means, a friction twisting element and draw rolls; (3) randomly entangling the combined and textured yarns together in a jet-intermingling zone formed by an air jet device; and (4) withdrawing the heather yarn so produced.
326478
Mountney Bruce D.
Wirsig Ralph C.
Du Pont Canada Inc.
Mccallum Brooks & Co.
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