The answer is revealed: it is a permanent spiral three-dimensional crimping process of polypropylene staple fiber.

The permanent spiral three-dimensional crimped polypropylene staple fiber production process is characterized by: spiral three-dimensional crimp, permanent deformation, uniform curl, good resilience and durability, adjustable curl, single-component spinning deformation, low equipment and low cost.

Polypropylene staple fiber is widely used in geotextiles, Eisai, filter cloth, cool cloth and other non-woven fabrics, automotive interiors, spinning, carpets, engineering materials, composite materials, filling materials, sound insulation, environmental protection bags, Felt products and other industries.

It is believed that with the advancement of technology and the deepening of research, the production process of polypropylene staple fiber will be more and more advanced, and the quality of finished products will be even better.