PE chemical name is linear polyethylene, divided into two kinds.One is high-density linear polyethylene, we usually call it HDPE, the other is low-density linear polyethylene, is what we usually call LDPE.PP chemical name is called polypropylene.
Bubble bags, bone bags of raw materials are PE material, that is, LDPE and LLDPE synthetic materials, such as the general factory with plastic bags is PE plastic bags, such as electronics factory, electrical plant, hardware factory, plastic factory, garment factory, Shoe factory and so on.
PE plastic bags are widely used. Farmers used in spring when the film is PE material, PE plastic bag looks transparent, feels very smooth, soft sound is not good and toughness (which is LLDPE at work).
PP plastic bags for most of the gift packaging, as well as finished clothing sales, we buy new clothes with plastic bags and a layer of double-sided plastic seal that is usually the kind of PO plastic bags.
PP plastic bag is very transparent, feels very slippery, but very hard, loud and very brittle, it will fold up there will be creases, fold PE plastic bags do not. Because the transparency is good, so when the gift looks very high grade.
