Hot-rolled non-woven fabrics

Hot rolling is the last of the non-woven production process into the network technology, is the result of cooling the fabric after the fabric of a process, hot rolling is a high degree of heat (100 ~ 150 degrees rolling mill rolling through the uniform so that melting. So that the surface of the hot-rolled non-woven fabric will have a rolling point, similar to the pinhole, but not penetrate, the specific size depends on the size and density of the steel bar. As a process, hot-rolled non-woven fabric is not a specific kind of cloth, but a class of similar processes into a non-woven fabric in general, in general, the use of hot-rolled process is spunbond Polypropylene nonwovens (PP., Polyester non-woven fabrics (PET., PA nylon (PA.), The three biggest difference is the processing of raw materials.

advantage
1. Light weight: polypropylene resin as the main production of raw materials, the proportion of only 0.9, only three-fifths of cotton, with fluffy, feel good
2. Soft: composed of fine fibers (2-3D) light-like hot-melt adhesive forming. Finished softness moderate, with a sense of comfort.
3. Water, breathable: polypropylene slices do not absorb water, moisture content of zero, finished water good, 100% fiber from the composition of porous, good ventilation, easy to keep the fabric dry, easy to wash.
4. Non-toxic, non-irritating: products used in line with FDA food-grade raw materials production, excluding other chemical composition, stable performance, non-toxic, no smell, do not stimulate the skin.
5. Antimicrobial, anti-chemical: Polypropylene is a chemical blunt material, not moth, and can isolate the existence of bacteria and insects within the erosion of bacteria; antibacterial, alkali corrosion, the product does not affect the intensity due to erosion.
6. Antibacterial. Products with water, not mold, and can isolate the existence of bacteria within the liquid and insect erosion, not mildew.
7. Good physical properties. From polypropylene spinning directly paved into a hot bond, the strength of the product is better than the general staple fiber products, the strength of non-directional, vertical and horizontal intensity similar.
8. In terms of environmental protection, the raw material used in most nonwovens is polypropylene, and the raw material of plastic bags is polyethylene, although the two substances are similar in name, but the chemical structure is very different. Polyethylene chemical structure has a very strong stability, very difficult to degrade, so the plastic bags need 300 years to break down; and polypropylene chemical structure is not strong, the molecular chain is easy to break, which can be effectively degraded , And in the non-toxic form into the next cycle of the environment, a non-woven shopping bags in 90 days can be completely decomposed. And non-woven shopping bags can be reused more than 10 times, the pollution of the environment after the pollution is only 10% of plastic bags.

Disadvantages
1. Compared with the textile fabric strength and durability is poor
2. Can not be cleaned like other fabrics
3. fibers arranged in a certain direction, so easy to split from the right angle and so on. Therefore, the improvement of production methods is mainly to prevent the improvement of the split.