E.i. Dupont De Nemours and Company

Frank Werny

Wae-Hai Tung

James M Howell

Yashavant V Vinod

Vilas G Bankar

Richard Meelheim

Leif R Simonsen

Terry L Stuchlik

Polyester carpets of poly(trimethylene terephthalate) are disclosed which have excellent stain-resistance, texture retention and resistance to crushing. The bulked continuous filament yarn used to make the carpets and the process for making the yarns are also disclosed.

Process for making poly(trimethyleneterephthalate) bulked continuous filaments, the filaments thereof and carpets made therefrom

Yarns comprised of bulked continuous filaments of poly (trimethylene terephthalate)

Yarns comprised of bulked continuous filaments of poly(trimethylene terephthalate)

Carpets made from poly(trimethylene terephthalate) bulked continuous

Process for making poly(trimethylene terephthalate) bulked continuous

The present invention relates to ply-twisted yarns comprising fiber blends of about 70 to 90 weight percent base fiber and about 10 to 30 percent non-melt compatible polyolefin fiber having a melting point of about 130.degree. to 170.degree. C. The base fiber may be polyamides, polyesters, or fiber mixtures thereof. The ply-twisted yarns may be heat-set by a conventional process, whereupon the polyolefin fibers melt and bond to each other but do not bond to the base fibers.

Fiber blends for improved carpet texture retention

Bulked continuous filament carpet yarns having high levels of bulk are disclosed. When ply-twisted together at unusually high twist levels and tufted into carpets, such yarns produce cut-pile carpets having a superior balance of carpet bulk and newness retention when compared to carpets of identical construction made with yarns having conventional levels of yarn bulk and/or twist.

Carpet yarns and carpets with improved balance of newness retention and

Trilobal synthetic carpet filaments in a specified range of modification ratios and related arm angles exhibit a unique combination of high bulk and high sparkle.

Trilobal filaments exhibiting high bulk and sparkle

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West Chester, PA, United States of America

Frank Werny