Polyester fabric is the main fabric for sun protection clothing. Its light resistance is very good, and its light resistance is higher than that of natural fiber fabrics. Therefore, polyester fabric is the main fabric material used for sun protection clothing. Because there is no specific dyeing group on the polyester molecular chain, and the polarity is small, it is difficult to dye, and the dyeability is poor, and the dye molecules are not easy to enter the fiber. Polyester fabrics have poor hygroscopicity, feel stuffy when wearing, and are prone to static electricity and dust, which affects beauty and comfort.