Production method of polyester/polypropylene double-layer woven sportswear fabric

The invention discloses a production method of a polyester/polypropylene double-layer woven sportswear fabric. The method comprises the steps of raw material selection, silk dressing, silk sizing, re-beaming, drafting and weaving; and good elastic shrinkage is obtained by subsequent processes such as dyeing and the like, thus many special clearances can be generated between two layers of fiber to realize a thermal insulation effect. When a user taking exercise is in a sweating state, due to the ultrafine-denier special-shaped section of polypropylene microfiber and the unique dog bone-shaped section of the polyester T400, the capillary effect of the fiber clearances is ensured, and the sweat is quickly transferred and diffused from the inner layer to the outer layer so as to dissipate heat; when the exercise is over and the sweating stops, a static air layer is formed in the fiber; and thus, the polyester/polypropylene double-layer woven sportswear fabric is very suitable for the winter sportswear.