How is polypropylene staple fiber produced?
Polypropylene staple fiber has its own advantages compared with polyamide fiber, polyester fiber, light viscose fiber, etc. Polypropylene staple fiber uses polypropylene resin as the main raw material, and is cut by melt spinning, drawing, crimping, and drying. Colored and colorless, fluffy fibers with specified denier and length.
So what are the high-quality properties of polypropylene staple fiber? Lightweight, with a density of 0.9~0.92 g/cm3, it 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; High (the same in dry state and wet state), good abrasion resistance and resilience; anti-microbial, no mildew and no moth; chemical resistance is also better than general synthetic fibers. In addition, compared with other synthetic fibers, polypropylene fiber has the best electrical insulation and warmth retention. It has a high electrical 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. Usually, heat stabilizers and anti-aging agents are added to improve its performance. Its hygroscopicity and dyeability are the worst among synthetic fibers, and the moisture regain is less than 0.03%. Ordinary dyes can't make it color. Therefore, when spinning, a certain amount of coloring masterbatch is added to the raw material polypropylene to make the fiber. Coloring.
Hubei Botao Synthetic Fiber Co., Ltd. was established in October 2000, specializing in the production and sales of polypropylene, polyester, composite fibers, and polylactic acid staple fibers. The products are mainly used for non-woven fabrics, automotive interiors, geotextiles, carpets, and filtration And other industries. The company is located in Jingmen City, Hubei Province, and now has six branches with a total area of 300,000 square meters. The company is equipped with imported fiber production lines, fixed assets of over 100 million yuan, an annual output of 50,000 tons of polypropylene staple fiber, 20,000 tons of polyester staple fiber, and 10,000 tons of composite fiber, with an annual output value of over 500 million yuan.
The company adheres to the basis of technological innovation, introduces new technical talents, and cooperates with universities and colleges to develop high-end Botao brands. The automotive interiors and high-speed rail geotextiles developed in accordance with market demand have filled the market gap with polypropylene staple fiber. The company has more than 280 employees, including 8 engineers and more than 30 other technical personnel. It has strong technical force, strict quality inspection system and independent research and development, production and marketing capabilities. It is a leading enterprise in the polypropylene industry in China and participated in the drafting of the " "Polypropylene staple fiber" industry standard, is the vice chairman unit of the Polypropylene Branch of China Chemical Fiber Association.