METHOD FOR PRODUCING COMPOSITE FIBER WITH EXCELLENT MELANGE EFFECTS, AND COMPOSITE FIBER PRODUCED THEREBY

摘要

The present invention relates to a method for producing a melange composite fiber, comprising the following steps: melting a polyester-based polymer and a polyamide-based polymer respectively with two extruders, supplying the same to a single spinneret, and spinning the same respectively through an independent through-hole; cooling down each of the discharged fibrous polymers by allowing the same to pass through a cooling section in the spinneret, and then collecting the same; elongating and winding the collected filament yarns. The polyester-based and polyamide-based melange composite fiber produced by the production method exhibits vivid and long melange effects with length of at least 1 cm based on standard length of melange effects, and high fastness with at least third degree.;COPYRIGHT KIPO 2017