Non-woven fabric is a kind of non-woven fabric, which is directly made of polymer slices, staple fibers or filaments into a net by air flow or machine, and then reinforced by spines, needling, or hot rolling, and finally formed after finishing the non-woven fabric. With soft, breathable and flat structure of the new fiber products, the advantage is no fiber chips, strong, durable, silky soft, is also a kind of reinforced materials, and there is a feeling of cotton, compared with cotton, non-woven bags are easy to form, and the cost is cheap.
Non-woven fabric characteristics
Durability, disposable. Insulation, not conductive. Softness, stiffness. Fineness and expansibility. Isotropy, anisotropy Filter, breathable and impervious to water. Flexibility, stiffness. Light, loose, warm. Thin as cicada wings, thick as felt. Waterproof and moisture permeable. Ironing, stitching, molding. Flame retardant, antistatic. Water permeable, waterproof, wear-resistant and fleece resistant. Wrinkle resistance, good elasticity, high moisture absorption, water repellent.
1, light weight: polypropylene resin as the main production raw material, the proportion of only 0.9, only three fifths of cotton, fluffy, feel good.
2, soft: composed of fine fiber (2-3D) light hot melt bonding molding. The finished product has moderate softness and comfort.
3, water, air permeability: polypropylene slice does not absorb water, water content is zero, the finished product is good water, composed of 100% fiber with porosity, good air permeability, easy to keep the cloth dry, easy to wash.
4, non-toxic, non-irritating: the product is produced with FDA food grade raw materials, without other chemical ingredients, stable performance, non-toxic, no odor, does not stimulate the skin.
5, antibacterial, anti-chemical agents: polypropylene is a blunt chemical substance, moth free, and can isolate the presence of bacteria and insects in the liquid erosion; Antibacterial, alkali corrosion, finished products do not affect the strength of erosion.
6, antibacterial. The product has the ability to pull water, no mildew, and can isolate the bacteria and insects in the liquid erosion, no mildew and moth.
7, good physical properties. Made of polypropylene spinning directly spread into a network of hot bonding, product strength is better than the general staple fiber products, strength without direction, vertical and horizontal strength similar.
8. In terms of environmental protection, polypropylene is the raw material of most non-woven fabrics used in 2013, while polyethylene is the raw material of plastic bags. Although the two substances have similar names, they are far apart in chemical structure.
The chemical molecular structure of polyethylene is very stable and difficult to degrade, so it takes 300 years for plastic bags to decompose. And the chemical structure of polypropylene is not firm, the molecular chain is easy to break, so that it can be effectively degraded, and in a non-toxic form into the next environmental cycle, an environmentally friendly non-woven bag bag can be completely decomposed in 90 days. Non-woven shopping bags can be reused more than 10 times and cause only 10 percent of the pollution of plastic bags.
Disadvantages of non-woven bag
1. Compared with textile cloth, strength and durability are poor
2. Can't be cleaned like other fabrics.
3, the fiber is arranged in a certain direction, so it is easy to split from the right Angle and so on. Therefore, the improvement of production methods is mainly on the improvement of preventing splitting.
