Patent ID: 6240609
Filing Date: 2001-06-05
Classification: D02G,D02J,Y10T

Abstract:
A process for producing apparent space-dyed bulked continuous filament yarn comprising the sequential steps of:individually and simultaneously drawing two or more pre-spun, pre-colored singles yarns, at least one of said singles yarns being differentially colored with respect to the other singles yarns;individually and simultaneously texturing the two or more singles yarns;individually and simultaneously entangling the two or more textured singles yarns to form respective two or more entangle-sequenced yarns each having fiber portions having sequences of entangled and unentangled fibers;together entangling the two or more entangle-sequenced yarns to form a final apparent space-dyed yarn; andwinding up the final apparent space-dyed yarn, wherein the step of individually and simultaneously entangling the two or more textured singles yarns comprises:controlling at least one first nozzle assembly by providing to said at least one first nozzle a first pressurized air setting of a repeating on-off sequence; andthe step of together entangling the two or more entangle-sequenced yarns comprises:controlling a second nozzle assembly by providing to said second nozzle assembly a second pressurized air setting of a repeating pressure sequence of high and low pressure, wherein said second pressurized air setting is timed such that the second nozzle assembly is at a high pressure when the at least one first nozzle is on, and at a low pressure when the at least one first nozzle is off.