Polypropylene is the trade name of polypropylene fiber. It is a fiber made from propylene as a raw material through polymerization and melt spinning. In 1957, Polypropylene officially entered industrial production and is a rising star among synthetic fibers. Polypropylene filaments (including undeformed filaments and bulky textured filaments), short fibers, hollow fibers, profiled fibers, various composite fibers and non-woven fabrics, etc. Polypropylene film fiber is firstly to make polypropylene into a film, then stretch the film to split it into a network of fibrils. Polypropylene is widely used in the manufacture of industrial fabrics and non-woven fabrics. Such as carpets, industrial filter cloths, ropes, fishing nets, building reinforcements, oil-absorbing blankets and decorative cloths. For civil use, polypropylene can be pure spinning or blended with wool, cotton or viscose to make various clothing materials. In addition, polypropylene film fibers can be used as packing material.