Patent ID: 6399194
Filing Date: 2002-06-04
Classification: D02G,D02J,Y10T

Abstract:
A method of producing polypropylene terephthalate textured yarn which is characterized in that, when carrying out texturing at the same time as drawing using a frictional false-twisting machine, at the same time as setting the draw ratio of the polypropylene terephthalate undrawn yarn to a draw ratio in the range 1.05 to 1.70, the elongation EL (%) of the undrawn yarn and the draw ratio DR are set so that the following relationship (1) is satisfied0.585Ã—(1+EL/100)&lE;DR&lE;0.75Ã—(1+EL/100)â€ƒâ€ƒRelationship (1).