PRODUCING TORQUE CONTROLLED VOLUMINOUS SET YARNS

摘要

Disclosed is a method and apparatus for producing a torque-controlled voluminous set yarn. Novel false twisting means hereinafter referred to as a "whirler" is employed to impart a relatively low number of twists per inch to a torque stretch yarn by blowing air circumferentially around the yarn at a pressure and flow coordinated with the yarn tension and the amount of heat imparted to the yarn. The covering power of the yarn and the bulk or voluminosity of the yarn thus produced is enhanced and residual torque in the yarn is controlled uniformly throughout the length of the yarn which is treated. Also disclosed is a set yarn with high bulk and controlled torque characteristics, novel yarn packages, fabric produced therefrom and garments made from said fabric.