How to identify plastic bag material by simple way?
Now a lot of people for plastic material is not very clear, plastic bags are often required for their order do not know what kind of material. Here we look at in terms of how to distinguish between several common plastic materials.
PE: the material is divided into a high pressure (LDPE) and low material (HDPE).
LDPE exterior looks relatively smooth, soft, toughness is good, a lot of bags LDPE production of raw materials are used, a lot of product packaging LDPE are used to do, there are a lot of industrial uses standard bags.
HDPE tension well, high hardness, widely used in shopping malls, various procurement markets. Most supermarkets are using HDPE vest bag making.
The easiest method to distinguish LDPE, with Shredded, produce white marks proved HDPE, because HDPE is a high density, it will produce white marks, no white marks that tension is generally good LDPE.
PP: material body hard, but relatively high transparency, clearer, tension is not very good, explosive mouth. Mostly for gift wrap, as well as sales of finished garments. We buy new clothes and have the kind of plastic bags wrapped layer of double-sided adhesive seal products is usually a PO bags.
PP bags very transparent, feels very slippery, but hard body, great sound and very brittle, will have to fold up its creases, PE plastic bags do not. Because transparency is good, so look at wrapping gifts it is high grade.
OPP: most brittle material, the highest transparency, tension is not enough, but the most explosive opening, and printing easiest decolorization gap is difficult if not torn, but do not have a little gap in what can tear strength.
These are some common ways to identify simple plastic bag material, hope to help you quickly identify.


没有评论:
发表评论