PE plastic bags are made of polyethylene through blown film and bag cutting. At present, PE plastic bags are widely used. The clothing industry, toy industry, electronics industry, hardware industry and other industries are all using PE plastic bags to pack their own products. So how much do you know about PE plastic bags, let's follow the Techuang plastic industry manufacturers to find out.

According to the material: PE is divided into low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE) and high-density polyethylene (HDPE). Divided according to the production process: PE plastic bags are divided into PE flat bags, ziplock bags, zipper bags, envelope bags, punching handbags, handle handbags, zipper bags, and PE film.

1. PE flat bags are the simplest manufacturing process. After the film is blown by the machine, they are cut into bags one by one on the bag making machine, and the bottom is sealed.

2. The self-sealing bag is made of a bone strip when the film is blown by the machine, which can be manually sealed. Unlike zipper bags, these two types of bags are generally easy to confuse.

3. The zipper bag is a packaging bag made of PE film with 2 zipper chains (this zipper chain is separately produced). Generally, there are relatively wide indentations on both sides of the packaging bag, while the ziplock bag does not. . Ziplock bags have less printing colors, while zipper bags can print complex patterns.

4. The envelope bag has a tongue like an envelope, and a strip of glue is pasted on the tongue, which can be folded over to seal the bag. General clothing is more used. There is also a courier bag is actually a kind of envelope bag.

5. The punching tote bag is to punch a hole at an appropriate position on the top of the flat pocket to facilitate lifting the bag.

6. The handle bag is to add a plastic film strip on the top of the bag to facilitate the lifting of the bag. This process consumes labor and the cost is relatively high.

7. The zipper bag is to install a zipper strip on the seal of the packaging bag and put a zipper cap on it.

8. PE film is a film that is not made into a packaging bag after being blown out by the machine. It is also divided into stretch film and shrink film.