POLY-TRIMETHYLENE TEREPHTHALATE SOLID CORE FIBRILLATION-RESISTANT FILAMENT HAVING A SUBSTANTIALLY TRIANGULAR CROSS SECTION, A SPINNERET FOR PRODUCING THE FILAMENT, AND A CARPET MADE THEREFROM

POLY-TRIMETHYLENE TEREPHTHALATE SOLID CORE FIBRILLATION-RESISTANT FILAMENT HAVING A SUBSTANTIALLY TRIANGULAR CROSS SECTION, A SPINNERET FOR PRODUCING THE FILAMENT, AND A CARPET MADE THEREFROM

In a first aspect the invention is a solid core fibrillation-resistant, synthetic polymeric filament having three substantially equal length convex sides. The sides through substantially rounded tips centered by a distance a from the axis of the filament. Each rounded tip has a radius substantially...

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Hauptverfasser: SAMANT KALIKA RANJAN, SAMUELSON HARRY VAUGHN, CHANG JINGUNG
Format: Patent
Sprache:eng
Schlagworte:
EMBROIDERING
SEWING
TEXTILES
TUFTING
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SAMUELSON HARRY VAUGHN
CHANG JINGUNG
description In a first aspect the invention is a solid core fibrillation-resistant, synthetic polymeric filament having three substantially equal length convex sides. The sides through substantially rounded tips centered by a distance a from the axis of the filament. Each rounded tip has a radius substantially equal to a length b. Each tip lies on a circumscribed circle having a radius substantially equal to a length (a+b) and the midpoint of each side lies on an inscribed circle having a radius substantially equal to a length c. The filament has a denier-per-filament in the range 10
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The sides through substantially rounded tips centered by a distance a from the axis of the filament. Each rounded tip has a radius substantially equal to a length b. Each tip lies on a circumscribed circle having a radius substantially equal to a length (a+b) and the midpoint of each side lies on an inscribed circle having a radius substantially equal to a length c. The filament has a denier-per-filament in the range 10<dpf<35; the distance a lies in the range 0.00025 inches (6 micrometers)<a<0.004 inches (102 micrometers); the distance b lies in the range from 0.00008 inches (2 micrometers)<b<0.001 inches (24 micrometers); the distance c lies in the range from 0.0003 inches (8 micrometers)<c<0.0025 inches (64 micrometers); and the modification ratio (MR) lies in the range from about 1.1<MR<about 2.0. In still another aspect the present invention is directed to a spinneret plate having a plurality of orifices formed therein for forming the solid core fibrillation-resistant, synthetic polymeric filament. Each orifice has a center and three sides with each side terminating in a first and a second end point and with a midpoint therebetween. 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subjects EMBROIDERING
SEWING
TEXTILES
TUFTING
title POLY-TRIMETHYLENE TEREPHTHALATE SOLID CORE FIBRILLATION-RESISTANT FILAMENT HAVING A SUBSTANTIALLY TRIANGULAR CROSS SECTION, A SPINNERET FOR PRODUCING THE FILAMENT, AND A CARPET MADE THEREFROM
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