Advantages of non woven materials
Advantages:
1. Light weight: with polypropylene resin as the principle raw material, the proportion is only 0.9, only three-fifths of that of cotton, with fleeciness and good feel.
2. Non-poisonous and non-irritating: the product is manufactured with meals grade raw supplies in accordance with FDA, without other chemical ingredients, stable efficiency, non-poisonous, 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 can isolate the erosion of bacteria and bugs in the liquid; Antibacterial, alkali corrosion, completed products don’t affect the power as a consequence of erosion.
4. Good physical properties. Made of polypropylene spinning directly into a net of thermal bonding products, the strength of the products is best than the overall staple fiber products, the energy of the directionless, similar to the vertical and horizontal strength.
5. In terms of environmental protection, polypropylene is the raw materials of most non woven materials, while polyethylene is the raw material of plastic bags. Although the two substances have similar names, they’re quite completely different in chemical structure. The chemical molecular structure of polyethylene has quite sturdy stability and is extremely difficult to degrade, so it takes 300 years for plastic bags to decompose. The chemical construction of polypropylene is weak, and the molecular chain could be simply broken, so that it may be effectively degraded, and it enters the following environmental cycle in a non-poisonous form. A non-woven shopping bag may be utterly decomposed within 90 days. Moreover, the non-woven shopping bags could be reused for more than 10 instances, 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 material
The spining process is to spray a high pressure water jet onto one or more layers of fiber network, in order that the fibers are entangled with each other, so that the fiber network can be strengthened and have a sure strength.
2. Heat-bonded non woven fabric
Thermal bonding non woven cloth refers back to the addition of fiber mesh or powder scorching melt bonding reinforcement supplies, fiber mesh after heating melting cooling reinforcement into cloth.
3. The pulp flows into a net of non-woven material
The air circulation into the net non-woven cloth can also be called mud-free paper, dry paper making non-woven cloth. It is the use of air mesh technology to open the wood pulp fiber board loose into a single fiber state, after which use air movement technique to make the fiber agglutination within the net curtain, fiber mesh reinforcement into cloth.
4. Wet non woven cloth
Wet non-woven material is the fiber raw materials in the water medium is opened right into a single fiber, at the similar time, completely different fiber raw materials are mixed, made into fiber suspension slurry, suspension slurry is transported to the network forming mechanism, the fiber within the wet state into a network and then strengthened into cloth.
5. Spunbonded, non woven material
Spunbonded non-woven material is within the polymer has been extruded, stretch and kind a steady filament, filament laid right into a network, fiber network after its own bonding, thermal bonding, chemical bonding or mechanical reinforcement technique, in order that the fiber network into non-woven cloth.
6. Melt spray non woven material
Melt-blown non-woven process: polymer feeding – melt extrusion – fiber formation – cooling – into a network – reinforcement into cloth.
7. Acupuncture on non woven fabric
Needling non-woven material is a kind of non-woven cloth by dry method. Needling non-woven material is to strengthen the material with a fluffy fiber net through the use of the puncture function of needles.
8. Stitch non woven fabric
non woven fabric is a kind of dry non woven fabric. The knitting method is to use the warp knitting coil structure to reinforce the fiber mesh, yarn layer, non-textile materials (akin to plastic sheet, plastic thin metal foil, etc.) or their mixture to make non woven fabric.
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