100% Polyester filament yarn. The Polyester FDY is Polyester full drawn yarn. It introduces stretching in the spinning process. It can be used low speed spinning, high speed drawing winding, two procedures in a spinning and drawing machine, can be obtained with high orientation and medium crystallinity of the winding yarn, for the full drawn yarn. FDY production line has the advantages of low production cost, stable quality of finished products, less broken ends and good uniformity of dyeing. FDY after stretching, the fiber strip is relatively smooth, resulting in a smooth feel of the fabric, which is often used for weaving imitation silk fabrics. It has a wide range of applications in clothing and home textiles.