A TECHNICAL POLYESTER MULTI-FILAMENT YARN WITH ANTI-BIOSIS AND ITS MANUFACTURING PROCESS

摘要

A polyester multifilament yarn and a method for manufacturing the same are provided to produce a polyester fiber having high strength and low shrinkage, by using nanometer-sized silver powder and optimizing the winding condition. A master batch chip is obtained by mixing and melting nanometer-sized silver powder and polyester solid polymer chip. A cooled and solidified polyester undrawn yarn is obtained by melting and spinning the master match chip and the polyester solid polymer chip. The polyester undrawn yarn is drawn, fixed by heat, slackened, and wound through several pairs of godet rollers(1-5). The silver powder has an average grain diameter ranging from 10 to 1,000 nm.