SUPER ENGINEERING PLASTIC RESIN-BASED FLAME RETARDANT WIG YARN, AND MANUFACTURING METHOD THEREOF

摘要

The present invention relates to a method for manufacturing a super engineering plastic resin-based flame retardant wig yarn, comprising a step of extruding polyethersulfone (PES) or polyetherimide (PEI) as a super engineering plastic material at a high temperature in the range of 300 to 450C at a predetermined spinning speed and winding the same. The present invention also relates to a wig yarn which does not contain a flame retardant and a wig product including the same.;COPYRIGHT KIPO 2020