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

摘要: In a first aspect the invention is solid core fibrillation-resistant, synthetic polymeric filament having three substantially equal length convex sides. The sides through rounded tips centered by distance “a” from axis of filament. Each tip has radius to “b”. lies on circumscribed circle (a + b) and midpoint each side an inscribed “c”. denier-per-filament in range 10 < “dpf” 35; 0.00025 inches (6 micrometers) 0.004 (102 micrometers); “b” 0.00008 (2 0.001 (24 “c” 0.0003 (8 0.0025 (64 modification ratio (“MR”) about 1.1 “MR” 2.0. still another present directed spinneret plate plurality orifices formed therein for forming orifice center with terminating second end point therebetween. can be either concave or linear connected circular contour.