Polyester staple fiber is a short curly fiber suitable for mixing with cotton or other fibers such as rayon, acrylic, nylon, wool, ramie etc. in spinning yarns for weaving and knitting. It is also an ssential component for non-woven products and filling. Through spinning, weaving, knitting and various non-woven processes, staple fiber can be transformed to varietal textile and non-textile products commonly used in our daily life.