What are the characteristics of the raw materials of non-woven bags?

Speaking of non-woven bags, everyone is familiar with it. What kind of fabric is it made of? Of course it is non-woven fabric, so what are the characteristics of non-woven fabric? Let’s talk to you about the advantages and disadvantages of non-woven fabrics today! The advantages of non-woven fabrics: 1. Light weight: 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 has a good hand feeling. 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 repellency and breathability: Polypropylene slices do not absorb water, have zero moisture content, and have good water repellency. The fiber composition is porous and has good air permeability. It is easy to keep the cloth dry and easy to wash. 4. Non-toxic and 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 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. The strength is non-directional and the strength is similar in the vertical and horizontal directions. 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 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 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 degree to the environment after being discarded is only 10% of that of the plastic bag. Disadvantages of non-woven fabrics: 1) Compared with woven fabrics, the strength and durability are poor. 2) It 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 and so on. Therefore, the improvement of the production method mainly focuses on the improvement of preventing splitting.