POLYESTER PARTIALLY DRAWN YARN AND MANUFACTURING METHOD THEREOF

摘要

PURPOSE: Polyester partially drawn yarn and a manufacturing method thereof are provided which are characterized by having high productivity because of spinning at high speed, having excellent strength and elongation, not arising noils and making it possible to produce DTY(Draw Textured Yarn) having excellent weavability. CONSTITUTION: Polyester is obtained by: polymerizing terephthalic acid and ethylene glycol to produce polyester(A ingredient) with a continuous polymerizing method; or polymerizing ethylene glycol and terephthalic acid or ester forming derivatives thereof to produce polyester with a batch type polymerizing method. The polyester partially drawn yarn(POY) is obtained by a process containing the steps of: adding trimellitic anhydride(TMA) to the polymer in a ratio of 5-30micro equivalent(MEQ) per 1g of the polymer to modify the polymer into polyester(B ingredient); mixing An ingredient and B ingredient in the range of from 1:4 to 4:1; and then spinning the mixed polyester at 4,000-5,500mpm of spinning velocity.