The poly (trimethyleneterephthalate) production manner, and the poly (trimethyleneterephthalate) of the staple fiber the staple fiber, the thread and

摘要

Being the method of producing the poly- trimethylene terephthalate staple fiber, per inch 8 - 30 reductions (3 - 12 reductions /cm) the reduction doing, (f) relax the filament which the reduction is done to reduction level at temperature of 50 - the 120C (a) supplying the poly- trimethylene terephthalate, (b) the melted poly- trimethylene terephthalate the melt spinning doing, (cooling suddenly c) said filament, (d) stretching doing the filament which is cooled suddenly, (e) the fiber which stretching is done, making use of the machine crimper to the filament at temperature of 245 - the 285C,And (g) the filament which is relaxed, length approximately 0.2 - 6 inches (approximately 0.5 - approximately 15cm) production method, and the poly- trimethylene terephthalate staple fiber which include the fact that it cuts off in the staple fiber, the yarn, and the cloth. Furthermore, the fact that the staple fiber which possesses the denier which is selected on the basis of thing, and this decision which decide the relationship of the denier between reduction take-up is produced is included, the method reduction take-up of the poly- trimethylene terephthalate staple fiber being optimized.