Patent ID: 6029328
Filing Date: 2000-02-29
Classification: D02G,D02J

Abstract:
A process for bulk-texturizing and simultaneously interlacing continuous multi-filament, substantially stretched thermoplastic yarns having a shrinkage not lower than 9%, comprising the steps of(a) advancing said yarns through at least one chamber at an inlet speed, said chamber comprising at least one let for delivering steam or other gaseous fluid,(b) subjecting said yarns to said jets of steam or other gaseous fluid at temperatures of from about 100 to about 230 degrees C. wherein said jets are transverse with respect to the direction of advance of said yarns to effectuate simultaneous shrinkage, bulk-texturizing and interlacing of said yarns, and(c) reducing the speed of the yarns exiting said chamber to a speed between about 55% and about 91% of the inlet speed of the yarns, wherein said speed reduction effectuates control of said shrinkage.