Patent ID: 6401315
Filing Date: 2002-06-11
Classification: D02G,D02J,Y10T

Abstract:
Apparatus for making apparent space-dyed bulked continuous filament yarn from at least two separate yarns of different color, comprising, in a single production line separate from a yarn spinning apparatus,a drawing device for drawing said at least two yarns at a predetermined draw ratio; a texturing device for individually and simultaneously texturing the at least two yarns to obtain two or more repective textured yarns; a first set of entanglers for individually and simultaneously entangling the at least two respective textured yarns to obtain at least two respective entangle-sequenced yarns each including sequences of entangled and unentangled fibers; a second stage entangler for together entangling the at least two respective entangle-sequenced yarns to obtain a final apparent space-dyed yarn including sequences of entangled and unentangled fibers; a programmable controller operably connected to said first set of entanglers and said second stage entangler, and being so constructed and arranged to individually control the timing and degree of fiber entanglement of yarn operatively processed by said each entanglers, and wherein said programmable controller comprises: a control for controlling said first set of entanglers by providing to said first set of entanglers a first pressurized air setting of a repeating on-off sequence; and a control for controlling said second stage entangler by providing to said second stage of entangler a second pressurized air setting of a repeating sequence of high pressure and low pressure, wherein said second pressurized air setting is timed such that the second stage entangler is at a high pressure when said first set of entanglers is on, and at a low pressure when said first set of entanglers is off.