Process for Making PolyTrimethylene Terephthalate Staple Fibers and PolyTrimethylene Terephthalate Staple Fibers Yarns and Fabrics

摘要

The invention (a) the step of quenching the polytrimethylene supplying a phthalate, (b) the step of melt spinning the melted polytrimethylene terephthalate into filaments at a temperature of 245 to 285 ℃, (c) the filaments, (d) the quenched filament step of stretching, (e) crimping celebration road volume of the drawn filaments using a mechanical crimp of 8 to 30 crimps number / inch (3 to 12 / cm) is a phase, (f) crimping step to relax at a temperature of 50 to 120 ℃ the fiber, and (g) to the relaxed filament is characterized by a length of a step of cutting into staple fibers of about 0.2 to 6 inches (about 0.5 to about 15 cm) polytrimethylene terephthalate production process of the staple fiber, polytrimethylene terephthalate relates to a staple fiber, yarn and textile. The invention also denier and crimp take-and measures the relationship between the up, based on the measurement, characterized in that for producing a staple fiber having a selected denier, polytrimethylene terephthalate crimped staple fiber take-up It relates to a method for optimizing.