As a natural environmental protection material, wool felt has been gradually loved by people. Wool felt culture has extended to all corners of the world, from people's daily use of handbags, clothing, even to infiltrate home textiles and other industries which are closely related to people's comfortable daily life. The plasticity and environmental protection of wool felt has been recognized by fashion designers. Color fiber wool felt is the use of polyester, polypropylene, acrylic, and imported fibers as raw materials. Chemical fibers are made of natural or synthetic polymers as raw materials and processed by chemical or physical methods. Because of the different sources of polymer compounds used, it can be divided into synthetic fiber with natural polymer material as raw material and synthetic fiber with synthetic polymer as raw material. Chemical fiber is made by means of needle punching machine.