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High-performance double-twist polypropylene fiber performance characteristics:
(1) High-strength polypropylene double twist silk light weight
Polypropylene fiber density of 0.90-0.92 g / cm3, the lightest of all chemical fibers, 20% lighter than nylon, 30% lighter than polyester, 40% lighter than viscose, so it is suitable for winter clothing Wadding or ski suits, mountaineering suits and other fabrics.
(2) high-strength double-twisting twill silk high strength, good elasticity, wear-resistant, corrosion-resistant
Polypropylene high strength (dry, wet state the same), is ideal for the manufacture of fishing nets, cables; wear resistance and resilience, strength and polyester and nylon similar rebound rate comparable with nylon, wool, polyester than polyester Lun, viscose fiber much larger; polypropylene dimensional stability is poor, easy to pilling and deformation, anti-microbial, not bore; chemical resistance superior to the average fiber.
(3) High-strength PP twisting yarn with electrical insulation and thermal insulation
Polypropylene fiber high resistivity (7 × 1019Ω.cm), the thermal conductivity is small, compared with other chemical fibers, polypropylene insulation and thermal insulation of the best, but processing is easy to produce static electricity.
(4) High-strength polypropylene double-twist heat-resistant and anti-aging properties
Polypropylene fiber has a low melting point (165-173 ° C) and poor light and heat stability. Therefore, polypropylene has poor heat resistance and aging resistance, and is not resistant to ironing. However, it is possible to improve the anti-aging properties by adding an anti-aging agent during spinning.
(5) High-strength PP twisting yarn hygroscopicity and dyeing
Polypropylene fiber hygroscopicity and dyeability in the chemical fiber is poor, almost no moisture, the moisture regain less than 0.03%. Fine denier polypropylene has a strong wicking effect, water vapor can be eliminated through the capillary in the fiber. After the clothing is made, the comfort of the clothing is better, especially the superfine polypropylene fiber, which can transfer the sweat faster because of the increase of the surface area, and make the skin comfortable. As the fiber is not hygroscopic and shrinkage is small, polypropylene fabric has easy to wash and quick-drying characteristics.
Polypropylene dyeing is poor, light color, poor color fastness. Ordinary fuel can not make it dyed, most of the colored polypropylene is produced using the pre-spinning coloring. Primer coloration, fiber modification, blending of fuel complexing agent prior to melt spinning can be used.