What is a non-woven fabric? What are the advantages and disadvantages of non-woven fabrics?

What is a non-woven fabric? What are the advantages and disadvantages of non-woven fabrics? Non-woven fabrics, also known as non-woven fabrics, are made up of directional or random fibers and are a new generation of environmentally friendly materials, it has the characteristics of moisture-proof, breathable, flexible, light weight, no combustion-supporting, easy decomposition, non-toxic and non-irritating, rich in color, low price, and recyclable. For example, polypropylene pellets are used as raw materials and are produced by continuous one-step process of high-temperature melting, wire spraying, winding and hot pressing. It is called a cloth for its appearance and certain properties. Advantages of non-woven fabrics: 1. Light weight: polypropylene resin is the main raw material for production, with a specific gravity of only 0. 9. Only 3/5 of cotton is fluffy and feels good. 2. Softness: composed of fine fibers (2-3D)Tap hot melt bonding. The finished product is moderately soft and comfortable. 3. Water allocation and ventilation: polypropylene slices do not absorb water, have zero water content, have good water allocation for finished products, have porous properties composed of 100% fibers, have good air permeability, and are easy to keep the cloth surface dry and easy to wash. 4. Non-toxic, non-irritating: The product is produced in accordance with FDA food-grade raw materials, does not contain other chemical components, has stable performance, is non-toxic, has no peculiar smell, and does not irritate the skin. 5. Antibacterial and anti-chemical agents: polypropylene is a chemical blunt substance, does not contain insects, and can isolate the erosion of bacteria and insects in the liquid; Antibacterial, alkali corrosion and finished products do not affect their strength due to erosion. 6. Antibacterial. The product is water-drawn, not moldy, and can isolate the erosion of bacteria and insects in the liquid, and is not moldy. 7. Good physical properties. It is formed by direct spinning of polypropylene into mesh heat bonding. The strength of the product is better than that of ordinary staple fiber products, the strength is non-directional, and the vertical and horizontal strength is similar. Disadvantages of non-woven fabrics: 1. Compared with tarpaulin, the strength and durability are poor. 2, can not be cleaned like other fabrics. 3. Fibers are arranged in a certain direction, so they are easy to crack from right angles and so on. Therefore, the improvement of production methods is mainly on the improvement of preventing division.