What types of pe bags are classified according to the material production process

PE waterproof bags are divided into materials: PE is divided into LDPE, LLDPE and HDPE.　　According to the production process, it is divided into: PE flat bag, ziplock bag, zipper bag, envelope bag, punching handbag, hand-carrying bag, zipper bag, PE film.　　1. PE flat bag is the simplest manufacturing process. After the film is blown by the machine, it is cut into a bag on the bag making machine, and the bottom is sealed.　　2. The ziplock bag is equipped with a bone strip when the film is blown by the machine, which can be sealed manually. Unlike zipper bags, these two types of bags are generally easy to confuse.　　3. The zipper bag is a bag made of PE film with two clip chains (this clip chain is separately produced). The two sides of the bag generally have relatively wide indentations, while the ziplock bag does not. Ziplock bags have few printing colors, while zipper bags can print complex patterns.　　4. The envelope bag has a tongue like an envelope. A strip of glue is attached to the tongue and folded over to seal the bag. Generally used for clothing. There is also a courier bag that is actually a kind of envelope bag.　　5. The punching tote bag is to punch a hole at the top of the flat pocket to facilitate the lifting of the bag.　　6. u200bu200bThe handle bag is to add a plastic film strip on the top of the bag to facilitate the bag lifting. This process consumes labor and relatively high cost.　　7. The zipper bag is to install a zipper strip and a zipper cap on the bag seal.　　 8. PE film is the film that is not made into a bag after being blown out by the machine. It is also divided into stretch film and shrink film.　　 Label: pe waterproof bag