Polypropylene staple fiber uses polypropylene resin as the main raw material, and is made into colored and colorless fluffy fibers with specified denier and length through processes such as melt spinning, drafting, crimping, drying, shaping, cutting, and packaging.

What are the excellent properties of polypropylene staple fiber? Light in weight, its density is 0.9-0.92 g/cubic centimeter, which is the lightest among all synthetic fibers. It is 20% lighter than polyamide fiber, 30% lighter than polyester fiber, and 40% lighter than viscose fiber; strength High (the same in dry and wet conditions), good abrasion resistance and resilience; anti-microbial, mildew and moth-free; chemical resistance is also better than ordinary synthetic fibers. In addition, compared with other synthetic fibers, polypropylene fiber has the best electrical insulation and warmth retention properties. It has a high resistivity (7×1019 ohm·cm) and a small thermal conductivity.

However, polypropylene staple fiber has a low melting point (165-173°C) and poor light and thermal stability. Therefore, polypropylene fiber has poor heat resistance and aging resistance. Heat stabilizers and anti-aging agents are usually added to improve its performance. Its hygroscopicity and dyeability are the worst among synthetic fibers, with a moisture regain of less than 0.03%. Ordinary dyes cannot color it. Therefore, during spinning, a certain amount of coloring masterbatch is often added to the raw material polypropylene to make the fiber Coloring.

Polypropylene staple fiber is mainly used in needle-punched carpets, car interiors, non-woven fabrics, ropes, decorative materials, medical and sanitary products, etc.

Hubei Botao Synthetic Fiber Co., Ltd. has introduced a number of imported fiber production lines, with fixed assets of over 300 million yuan, an annual output of 100,000 tons of polypropylene short fiber, 20,000 tons of polyester short fiber, and 10,000 tons of composite fiber, with an annual output value of over 800 million yuan. . Focusing on the field of synthetic fibers for more than 20 years, Botao Synthetic Fiber has achieved excellent market results and extensive honors with a mentality of excellence and honest development. In 2014, as the vice-president unit of the Polypropylene Branch of the China Chemical Fiber Association, it participated in the drafting and formulation of the "Polypropylene Staple Fiber" industry standard; in 2017, the polypropylene staple fiber market share exceeded 40%; in 2018, it was awarded the Invisible Area of Hubei Province's pillar industry segment Champion Technology Little Giant is a provincial-level specialized and special new little giant enterprise...