Staple fiber is an important chemical fiber, whose main components are synthesized from PTA and ethylene glycol. Since staple fiber entered my country in the 1970s, its market size has grown rapidly due to its wide range of uses and low prices, and it has become an important raw material for industries such as textiles, clothing, and home textiles. Polyester is widely used in the manufacture of clothing and industrial products. In addition to playing an irreplaceable role in textiles, interior decoration of buildings, interior decoration of vehicles, etc., flame retardant protective clothing also plays a lot of roles in chemical, petroleum, and fire protection departments.