Supply Shunde extra thick plastic bags Leliu extra large PE plastic bags Nanhai printing packaging bags

Nanhai flat pocket three-water ziplock bags with high-definition printing are divided into, and etc. according to materials. According to the production process, they are divided into flat bags, ziplock bags, zipper bags, envelope bags, punched handbags, hand-held handbags, zipper bags, and films. , Flat bag is the simplest production process. After the film is blown by the machine, it is cut into bags one by one on the bag making machine, and the bottom is sealed. . The ziplock bag has a rib strip when the film is blown by the machine and can be sealed manually. Unlike zipper bags, these two bags are generally easily confused. . Zip zipper bags are bags made of film with a clip chain on top (this clip chain is separate). There are generally wide indentations on both sides of the bag, but ziplock bags do not. Ziplock bags are printed with fewer colors, while zipper bags can be printed with complex patterns. . The envelope bag has a tongue like an envelope. A tape is attached to the tongue and can be folded over to seal the bag. It is commonly used in general clothing. There are also express bags that are actually a type of envelope bags. , punching handbag is to punch a hole in the appropriate position on the top of the flat bag to facilitate lifting the bag. For hand-held handbags, a plastic film strip is added to the top of the bag to facilitate the lifting of the bag. This process is labor-intensive and relatively expensive. , zipper bag is to install a zipper on the bag seal and put on a zipper cap. , 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. Commonly used ones on the market are calculated by piece and calculated by length (volume). Small bags are mainly used for packaging small accessories. Most of the accessory bags for electronic products have anti-static effects. The bag openings are divided into flat mouth and self-sealing structures. The latter is also called bone bag (bone bag) or dense bag (roll) The bags need to be cut by yourself (for material packaging) and printed with incisions (for supermarkets). The plastic wrap made of other materials can also be called a bag. Please note that the plastic wrap that is in direct contact with food must be made of plastic wrap (other materials are generally better), which is safer for the human body. How to distinguish: The transparency, stretchability and viscosity of plastic wrap are stronger than plastic wrap. It has a wide range of uses, mainly used to make films, containers, pipes, monofilaments, wires and cables, daily necessities, etc., and can be used as high-frequency insulation materials for televisions, radars, etc.