POLY(TRIMETHYLENE ARYLATE) FIBERS, PROCESS FOR PREPARING, AND FABRIC PREPARED THEREFROM
A fine denier poly(trimethylene arylate) spun drawn fiber is characterized by high denier uniformity. A process for preparing uniform fine denier yarns at spinning speeds of 4000 to 6000 m/min is further disclosed. The poly(trimethylene arylate) fiber hereof comprises 0.5 to 5% by weight of polystyrene dispersed therewithin. Fabrics prepared therefrom are also disclosed.
1 . A fabric comprising a filament comprising a composition comprising 0.1 to 3% by weight of polystyrene, based on the total weight of the polymer in the composition, dispersed in poly(trimethylene arylate) wherein the filament is characterized by a denier per filament of ≦3, a denier coefficient of variation of ≦3% and a birefringence of at least 0.055.
2 . The fabric of claim 1 wherein the poly(trimethylene arylate) is poly(trimethylene terephthalate).
3 . The fabric of claim 1 wherein the composition comprises 0.5 to 2% by weight of polystyrene, based on the total weight of the polymer in the composition, dispersed in poly(trimethylene arylate).
4 . The fabric of claim 3 wherein the composition consists essentially of 0.5 to 2% by weight of polystyrene, based on the total weight of the polymer in the composition, dispersed in poly(trimethylene arylate).
5 . The fabric of claim 2 wherein the composition comprises 0.5 to 2% by weight of polystyrene, based on the total weight of the polymer in the composition, dispersed in poly(trimethylene terephthalate).
6 . The fabric of claim 2 wherein the composition consists essentially of 0.5 to 2% by weight of polystyrene, based on the total weight of the polymer in the composition, dispersed in poly(trimethylene terephthalate).
7 . The fabric of claim 1 wherein the fabric is a woven.
8 . A garment comprising the fabric of claim 1 .