Polypropylene FDY filament melts and shrinks near the flame, is flammable, burns slowly and emits black smoke.    The upper end of the flame is yellow, and the lower end is blue, emitting a petroleum odor.    The ashes after burning are hard, round, light yellow brown particles, and are fragile when twisted by hand.

Due to the simple production process, low price, high strength, and light relative density of polypropylene FDY yarn.    Currently, it is the fourth largest variety of synthetic fibers and the lightest fiber among common chemical fibers.    However, it has poor thermal stability, is not resistant to sunlight, and is prone to aging and brittle damage.    Therefore, anti-aging agents are often added to polypropylene fibers.

Polypropylene FDY Silk Usage: Polypropylene FDY silk can be used to weave various knitwear products such as socks, gloves, knitwear, knitted pants, dishwashing cloth, mosquito net cloth,  etc.    Carpets, fishing nets, canvas, concrete reinforcement materials, etc.