What are the characteristics of polypropylene fiber?
Jan 06, 2024| 1. Polypropylene fiber has high strength, wear resistance, good elasticity and corrosion resistance.
Polypropylene fiber has high strength (the same strength in dry/wet conditions), and its strength can reach the strength of polyester. It is very suitable for making fishing nets and cables; it is wear-resistant and elastic, and its rebound rate is comparable to that of nylon. Polyester is much larger, and polypropylene fiber has poor stability, so polypropylene fiber fabrics are prone to pilling and deformation. Its chemical resistance is much higher than other fibers, and it is also highly antimicrobial and not easy to be infested by insects.
2. Polypropylene fiber has good warmth retention and insulation properties
Polypropylene fiber has poor thermal conductivity and its resistivity is much higher than ordinary fibers. Compared with other chemical fibers, polypropylene fiber has the best warmth and insulation properties.
3. Polypropylene fiber has poor dyeability and hygroscopicity
Polypropylene fiber has poor dyeing performance, light color and low color fastness. Ordinary fuel cannot dye it. Colored polypropylene fiber is mainly produced by pre-spinning coloring method. Fuel complexing agents can be mixed with the original solution for coloring and fiber modification before melt spinning.
The dyeability and hygroscopicity of polypropylene fiber are the worst among all chemical fibers, with almost no hygroscopic ability. Fine polypropylene fiber has a strong wicking ability, and the absorbed water vapor is eliminated through the capillary tubes in the fiber. The comfort performance of clothing is very good. The best comfort is ultra-fine polypropylene fiber. The surface area becomes larger, the fabric can remove sweat faster, and the skin can maintain sufficient comfort. This is also the reason why polypropylene fiber fabrics are easy to wash and dry quickly.
4. Polypropylene fiber has poor heat resistance and aging resistance
The raw material of polypropylene fiber is propylene, which has a low melting point and poor stability when affected by heat and light. Therefore, polypropylene fiber has poor aging and heat resistance. Try to avoid ironing to avoid losing shape. Manufacturers generally add certain anti-aging agents during spinning to improve the anti-aging properties of polypropylene fibers.
5. The quality of polypropylene fiber is very light
The density of polypropylene fiber is the smallest among all chemical fibers, so polypropylene fiber is often used as wadding for winter clothing, mountaineering clothing, ski clothing, etc.