PROCESS FOR PREPARING POLYESTER MULTIFILAMENT HAVING AN EXTINCTION EFFECT

摘要

PURPOSE: A method for fabricating polyethylene terephthalate multifilaments is provided to be applied to sheet belt products with high dyeing quality. CONSTITUTION: A method for fabricating polyethylene terephthalate multifilaments comprises: a step of melting a polyethylene terephthalate chip with inherent viscosity of 1.0-1.2 through an extruder(1); a step of spinning molten polymers through a spinning nozzle; a step of drawing through a godet roller. The polyethylene terephthalate multifilaments contain 500-1500 ppm of titanium oxide and additive for dispersing titanium oxide.