Polyester staple fiber or polyester filament wire made of high strength, good elasticity, abrasion resistance, low shrinkage, good chemical stability. However, low melting point, high-speed meltable plug needle, easy to break, should pay attention to the selection of the needle. Mainly used for jeans, sportswear, leather, wool and uniforms, etc., is currently the most used and most popular sewing thread.

Polyester is a synthetic fiber is an important species, is the trade name of polyester fiber. It is purified terephthalic acid (PTA) or dimethyl terephthalate (DMT) and ethylene glycol (EG) as raw materials by esterification or transesterification and polycondensation obtained fiber-forming polymer - - polyethylene terephthalate, fibers made by spinning and after-treatment of the ester (PET). DTY, FDY, POY is the name of polyester classification into three categories POY: PREORIENTTED YARN, POY FDY: FULLY DRAWN YARN, FDY DTY: DRAW TEXTURING YARN, DTY and FDY drawn textured yarn is woven polyester fabric raw materials; POY DTY is a higher level of raw silk. (Chun Chi specializing in the production of polyester thread)