What are the characteristics of needle punched non-woven fabrics?

Update:09 Nov 2021
Needle-punched non-woven fabric is a non-woven fabric formed by directly using polymer chips, short fibers or filaments to form fibers through airflow or mechanical netting, and then through hydroentanglement, needle punching, or hot rolling reinforcement, and then after finishing. Cloth. Needle-punched non-woven fabric is a new type of fiber product with soft, breathable and flat structure. The advantages are that it does not produce fiber debris, is strong, durable, silky soft, and has a cotton feel. Compared with cotton fabrics, non-woven fabrics The bag is easy to form and inexpensive to manufacture.

Features of needle punched non-woven fabrics: durability, disposable. Insulating and conductive. Softness and stiffness. Density and expansion. Isotropic, anisotropic. Filterability, breathable and impermeable. Elasticity and stiffness. Light, loose and warm. Thin as a cicada's wings, thick as felt. Waterproof and breathable. Ironing, stitching, and compression molding. Flame retardant and antistatic. Needle-punched non-woven fabric is water-permeable, waterproof, abrasion-resistant, and flocking. Wrinkle resistant, good elasticity, high moisture absorption, water repellency.

1. Lightweight: Polypropylene resin is used as the main raw material for production, with a specific gravity of only 0.9, which is only three-fifths of cotton. It is fluffy and feels good.
2. Soft: It is composed of fine fibers (2-3D) and is formed by light-point hot-melt bonding. The finished product is moderately soft and comfortable.
3. Water-repellent and breathable: Polypropylene slices do not absorb water, have zero water content, and have good water-repellent properties. They are composed of fibers and are porous and air-permeable. It is easy to keep the cloth dry and easy to wash.
4. No irritation: Needle-punched non-woven fabric products are produced with FDA food-grade raw materials, do not contain other chemical ingredients, have stable performance, no peculiar smell, and do not irritate the skin.
5. Chemical resistance: Polypropylene is a chemically blunt substance, not moth-eaten, and can isolate the corrosion of bacteria and insects in the liquid; alkali corrosion, the finished product will not affect the strength due to corrosion.
6. The product is water-repellent, not moldy, and can isolate the erosion of bacteria and insects in the liquid, and is not moldy.
7. Good physical properties: It is made of polypropylene spun yarn directly spread into a net and thermally bonded. The strength of the product is better than that of ordinary staple fiber products, the strength is non-directional, and the vertical and horizontal strengths are similar.
8. In terms of environmental protection, most of the polypropylene non-woven fabrics currently used are polypropylene, while the raw material of plastic bags is polyethylene. Although the names of the two substances are similar, their chemical structures are far apart. The chemical molecular structure of polyethylene is very stable and extremely difficult to degrade, so it takes 300 years for plastic bags to be decomposed; while the chemical structure of polypropylene is not strong, the molecular chain can easily be broken, which can be effectively degraded , And enter the next environmental cycle in the form, a needle-punched non-woven shopping bag can be completely decomposed in 90 days. Moreover, the needle-punched non-woven shopping bag can be reused more than 10 times, and the pollution to the environment after disposal is only 10% of that of plastic bags.