Introduce the main types of PE bags in detail

According to 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. The pe flat bag is a simple 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 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. The 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.　　 The commonly used ones in the market are counted by one and counted by length (roll). (A) Small bags are mainly used for small accessories packaging. Most electronic product accessories bags have anti-static effects, and the bag mouth is divided into flat mouth and self-sealing structure. The latter is also called bone bag (pe bone bag) or compact bag; 　　 (roll) bag It is necessary to cut by yourself (for material packaging) and print cuts (for supermarkets).　　 Another pe material cling film can also be called a pe bag. Note that the cling film directly in contact with food must be made of pe material (the other is generally PVC), which is safer for the human body. Resolution method: The transparency, stretchability and viscosity of PVC cling film are stronger than pe cling film. When the PVC cling film is burned with fire, the flame will turn black, emit black smoke, have a pungent smell, will not drip oil, and will automatically go out after leaving the fire source. When the pe cling film burns, the flame is yellow, odorless, dripping oil, and can continue to burn after leaving the fire source. Tag: pe waterproof bag