Advantages of non woven materials
Advantages:
1. Light weight: with polypropylene resin as the main raw material, the proportion is only 0.9, only three-fifths of that of cotton, with fleeciness and good feel.
2. Non-toxic and non-irritating: the product is manufactured with food grade raw materials in accordance with FDA, without different chemical ingredients, stable performance, non-toxic, odorless and non-irritating to skin.
3. Antibacterial and anti-chemical agents: polypropylene is a chemically blunt substance, which just isn’t insect-eaten and might isolate the erosion of micro organism and insects within the liquid; Antibacterial, alkali corrosion, completed products do not have an effect on the power because of erosion.
4. Good physical properties. Made of polypropylene spinning directly right into a net of thermal bonding products, the energy of the products is better than the overall staple fiber products, the strength of the directionless, much like the vertical and horizontal strength.
5. In terms of environmental protection, polypropylene is the raw materials of most non woven fabrics, while polyethylene is the raw materials of plastic bags. Though the two substances have comparable names, they are quite totally different in chemical structure. The chemical molecular construction of polyethylene has quite sturdy stability and is extraordinarily troublesome to degrade, so it takes 300 years for plastic bags to decompose. The chemical structure of polypropylene is weak, and the molecular chain will be simply broken, so that it may be effectively degraded, and it enters the next environmental cycle in a non-poisonous form. A non-woven shopping bag will be completely decomposed within ninety days. Moreover, the non-woven shopping bags will be reused for more than 10 times, and the pollution to the atmosphere after being discarded is only 10% of that of plastic bags.
Classification of non woven fabrics
1. Spiny non woven fabric
The spining process is to spray a high pressure water jet onto one or more layers of fiber network, so that the fibers are entangled with one another, in order that the fiber network can be strengthened and have a certain strength.
2. Heat-bonded non woven material
Thermal bonding non woven material refers back to the addition of fiber mesh or powder hot melt bonding reinforcement materials, fiber mesh after heating melting cooling reinforcement into cloth.
3. The pulp flows into a net of non-woven cloth
The air circulate into the net non-woven fabric can also be called mud-free paper, dry paper making non-woven cloth. It’s the usage of air mesh technology to open the wood pulp fiber board loose right into a single fiber state, after which use air circulate methodology to make the fiber agglutination in the net curtain, fiber mesh reinforcement into cloth.
4. Wet non woven material
Wet non-woven fabric is the fiber raw materials within the water medium is opened into a single fiber, at the same time, totally different fiber raw supplies are combined, made into fiber suspension slurry, suspension slurry is transported to the network forming mechanism, the fiber within the wet state right into a network and then strengthened into cloth.
5. Spunbonded, non woven fabric
Spunbonded non-woven fabric is in the polymer has been extruded, stretch and form a continuous filament, filament laid right into a network, fiber network after its own bonding, thermal bonding, chemical bonding or mechanical reinforcement methodology, in order that the fiber network into non-woven cloth.
6. Soften spray non woven cloth
Soften-blown non-woven process: polymer feeding – soften extrusion – fiber formation – cooling – right into a network – reinforcement into cloth.
7. Acupuncture on non woven fabric
Needling non-woven cloth is a kind of non-woven fabric by dry method. Needling non-woven fabric is to reinforce the material with a fluffy fiber net by using the puncture perform of needles.
8. Stitch non woven cloth
non woven fabric is a kind of dry non woven fabric. The knitting methodology is to use the warp knitting coil construction to strengthen the fiber mesh, yarn layer, non-textile materials (such as plastic sheet, plastic thin metal foil, etc.) or their mixture to make non woven fabric.