E.i. Dupont De Nemours and Company

Invista North America S.a.r.l.

Wae-Hai Tung

Frank Werny

James M Howell

Ronnie Rittenhouse

Peter Popper

Lap-Tak Andrew Cheng

Gregory Paul Weeks

George K Kodokian

Paul W Yngve

Yashavant V Vinod

Raymond F Tietz

James K Odle

Kalika Ranjan Samant

Vijayendra Kumar

Sassan Hojabr

Rashi Akki

Vilas G Bankar

Caroline Tjhen Shibata

Carmen Anoish Covelli

Subhash Chand

Leif R Simonsen

Richard Meelheim

Maya D Mills

John Paul Ryan

Disclosed are processes for application of dyes and topical chemistries to single yarns during a yarn rewind process. The process foregoes the need for downstream environmentally unfavorable dyeing and low PH chemical treatment processes on the finished carpet. Further, neutral pH dye solutions can be used instead of the prior art low pH dye solutions. The single, treated yarn can then be twisted, weaved and tufted, twisted yarn under dry conditions, and the twisted yarn subsequently weaved or weaved and tufted, into a finished fabric or carpet. Also disclosed are systems, BCF yarns, and carpets made from the BCF yarn treated by the disclosed processes.

Apparatus and method for applying colors and performance chemicals on carpet yarns

Briefly described, embodiments of the present disclosure include trilobal bulked continuous filaments (BCFs) with a generally round central void, spinneret plates with a capillary design for producing the BCFs of the present disclosure, articles and carpets produced from the BCFs of the present disclosure, methods of producing the trilobal BCFs of the present disclosure, and the like.

Bulked continuous filaments with trilobal cross-section and round central void and spinneret plates producing filament

Intermittently colored yarns having an intermittent and random dye spacing pattern, and systems and methods of making the same, are disclosed. Such intermittently colored yarns exhibit higher quality and lower manufacturing costs over the known intermittently colored yarns. The intermittent coloring takes place while the yarn is in caterpillar form. Carpets made from such intermittently colored yarns exhibit enhanced aesthetics over carpets made from known intermittently colored yarns. Alternatively, a stain resist, colorless base dye, or bleaching agent can be applied in the same intermittent and random spacing pattern to the intermittently colored yarns prior to subsequent dyeing. This creates a mirror image like color effect to the resulting yarn.

Systems and methods for intermittently colored yarn

A bulked continuous filament with a three-sided exterior configuration is characterized in that each side has a smoothly curved contour extending between a first and a second rounded tip with an inwardly extending depressed region being disposed adjacent to each tip. Generally, the filament has an exterior modification ratio in the range from about 1.4 to about 2.5, and a tip ratio in the range from about 2.0 to about 10.0. The filament generally delta-shaped void with three major apices extending centrally and axially therethrough. Each side of the void is convexly shaped and formed from a pair of facets that meet to define minor apices. The void is oriented such that each major apex extends toward the approximate midpoint of one side of the exterior of the filament and each minor apex extends toward a tip of an exterior side. The distance (R) from the geometric center of the void to each major apex and the distance (R) from the geometric center of the void to each minor apex defines an apex ratio (R/R) in the range from about 1.0 to about 1.55. The void occupies from about one percent (1%) to about twenty-five percent (25%) of the cross sectional area of the filament.

Bulked continuous filament having a three-sided exterior cross-section and convex six-sided central void and yarn and carpet produced therefrom

An apparatus and method for texture heat-setting bulk continuous filament (BCF) yarns in hot air heat-setting machines that includes a preheating device/step using a mixture of steam and atmospheric air to preheat a twisted BCF yarn bundle to develop crimp memory and provide cohesion to the twisted BCF yarn bundle. Yarn bundle cohesion during texture heat-setting helps to avoid frequent breaks at the winder of the hot air heat-setting machine. The addition of the preheating device/step significantly improves the ability of hot air heat-setting machines to maintain continuous operation during texture setting of BCF yarns and makes the hot air heat-setting method commercially viable for this application.

Apparatus and method for heat-setting carpet yarns with hot atmospheric air

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

A bulked continuous filament with a three-sided exterior configuration is characterized in that each side has a smoothly curved contour extending between a first and a second rounded tip with an inwardly extending depressed region being disposed adjacent to each tip. Generally, the filament has an exterior modification ratio in the range from about 1.4 to about 2.0, and a tip ratio in the range from about 2.0 to about 4.0. The filament generally delta-shaped void with three major apices extending centrally and axially therethrough. Each side of the void is convexly shaped and formed from a pair of facets that meet to define minor apices. The void is oriented such that each major apex extends toward the approximate midpoint of one side of the exterior of the filament and each minor apex extends toward a tip of an exterior side. The distance (R) from the geometric center of the void to each major apex and the distance (R) from the geometric center of the void to each minor apex defines an apex ratio (R/R) in the range from about 1.0 to about 1.55. The void occupies from about four percent (4%) to about twenty-five percent (25%) of the cross sectional area of the filament.

Bulked continuous filament having a three-sided exterior cross-section and a convex six-sided central void and yarn and carpet produced therefrom

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

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

Process for making multicolored yarns and the product thereof

This invention provides moisture stable tuftstring carpet assemblies. The pile surface structure comprises a moisture stable backing substrate, a plurality of elongated pile articles each comprising an elongated, moisture stable support strand having bonded thereto a plurality of 'U' shaped bundles of multifilament yarn. The pile articles are bonded to the backing substrate. Different backing substrates and support strands may be used.

Moisture stable tuftstring carpet

Carpets made from poly(trimethylene terephthalate) bulked continuous

Process for making poly(trimethylene terephthalate) bulked continuous

The present invention relates to synthetic filaments having a distinctive bilobal cross-sectional shape. The cross-section includes a rectangular-shaped segment, wherein lobes having a curved tip portion extend from each end of the segment. The filaments are especially suitable for making carpets which exhibit a silk-like luster and have a soft hand.

Fiber bilobal cross-sections and carpets prepared therefrom having a

A delustered nylon filament is disclosed which contains cylindrical striations of polymethylpentene. The filaments have low or no glitter and a bright sheen luster.

Delustered nylon filaments with striations of polymethylpentene

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Seaford, DE, United States of America

Wae-Hai Tung