What is non-woven fabric? What are the advantages?

What is non-woven fabric? Non-woven fabric, also known as non-woven fabric (English name: Non Woven Fabric or Nonwoven cloth), is composed of directional or random fibers. It is a new generation of environmentally friendly materials. It is moisture-proof, breathable, flexible, light, non-combustible, and easy to decompose. , Non-toxic, non-irritating, rich in color, low price, recyclable and so on. For example, polypropylene (PP material) pellets are mostly used as raw materials, which are produced by continuous one-step method of high-temperature melting, spinning, laying, and hot-pressing. It is called cloth because of its appearance and certain properties. Non-woven fabric characteristics Non-woven fabric is a kind of non-woven fabric, which directly uses polymer chips, short fibers or filaments to form fibers through airflow or mechanical netting, and then undergoes spunlace, needle punching, or hot rolling reinforcement. The non-woven fabric formed after finishing. A new type of fiber product with soft, breathable and flat structure. The advantage is that it does not produce fiber debris, is strong, durable, and silky soft. It is also a kind of reinforcing material, and it has a cotton feel. Compared with cotton, non-woven The cloth bag is easy to form and cheap to manufacture. Advantages: 1. Lightweight: Polypropylene resin is used as the main raw material for production. The specific gravity is 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 moisture content, and have good water-repellent properties. They are made of 100% fiber and are porous and air-permeable. It is easy to keep the cloth dry and easy to wash. 4. Non-toxic, non-irritating: The product is produced with FDA food-grade raw materials, does not contain other chemical components, has stable performance, is non-toxic, non-odor, and does not irritate the skin. 5. Antibacterial and anti-chemical agents: Polypropylene is a chemically blunt substance, not moth-eaten, and can isolate the corrosion of bacteria and insects in the liquid; antibacterial, alkali corrosion, and the strength of the finished product will not be affected by erosion. 6. Antibacterial. The product is water-repellent, not moldy, and can isolate the bacteria and insects in the liquid from erosion, and is not moldy. 7. Good physical properties. It is made of polypropylene spun silk directly spread into a net and thermally bonded. The strength of the product is better than that of ordinary staple fiber products. 8. In terms of environmental protection, the raw material of most of the non-woven fabrics used is 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 decompose, 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 a non-toxic form, a non-woven shopping bag can be completely decomposed within 90 days. Moreover, the non-woven shopping bag can be reused more than 10 times, and the pollution to the environment after being discarded is only 10% of that of plastic bags. Disadvantages: 1) Compared with textile fabrics, the strength and durability are poor. 2) Cannot be cleaned like other fabrics. 3) The fibers are arranged in a certain direction, so it is easy to split from the right angle direction. Therefore, the improvement of the production method mainly focuses on the improvement of preventing splitting.