OPP plastic bag is a stretch of polypropylene, easy to burn, melt dripping, the yellow under the blue, smoke from the fire less, continue to burn. OPP material is the most brittle, the highest transparency, tension is not enough, but the most explosive mouth. And printing the most easily bleaching
PE is made of ethylene polymerization, according to the density is divided into high density polyethylene, medium density polyethylene and low density polyethylene. PE material body soft, but the transparency is not enough other materials, more Mongolia. Rally good! Not easy to burst mouth.
