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on-woven material classification [original 2014-1-3 17:06:58] Word Count: First, non-woven polypropylene (PP woven) polypropylene English name: polypropylene fiber is a byproduct of petroleum refining propylene raw materials for the production of synthetic fibers. Polypropylene spunbond non-woven bags are polypropylene as raw material, through high-temperature polymerization drawing into a network, and then hot-rolled into a bonded fabric, due to its simple process, yield, non-toxic and harmless to humans, it is widely used. Now on the market are the vast majority of non-woven bag non-woven polypropylene material. There are many advantages such as non-woven polypropylene aeration, filtration, insulation, waterproof and so very good, and a non-woven products are environmentally friendly. Second, non-woven polyester (PET non-woven) polyester nonwoven polyester chips is used as raw material, hot-rolled spunbond filaments made??. Outperforms non-woven polyester non-woven polypropylene, the main features: a strong, wear-resistant properties. Heat resistance than polypropylene non-woven, non-woven polypropylene shrinkable obvious in general when the temperature reaches 140 degrees will significantly shrink. Polyester temperatures can reach 230 degrees, so you can make non-woven polyester and polypropylene sublimation temperatures of not. Anti-aging is better than non-woven polypropylene. Although the polyester non-woven polypropylene full performance compared to prevail, but the high cost of non-woven polyester, woven bags on the market so chose polypropylene. Three, sms nonwoven fabric, this nonwoven fabric are