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< p > according to the different production methods, PVC can be divided into: General PVC resin, high degree of polymerization PVC resin, cross-linked PVC resin.

The general PVC resin is polymerized by vinyl chloride monomer under the action of initiator. The high degree of polymerization PVC resin refers to the resin which is polymerized by adding chain growth agent in vinyl chloride monomer polymerization system. The cross-linked PVC resin is polymerized in the vinyl chloride monomer polymerization system by adding crosslinking agent containing diene and polyene.

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< p > PVC zipper bag is a kind of PVC bag. It is widely used in building materials industry. It can be widely applied for two reasons. First, PVC has unique properties, rain proof, fire-resistant, antistatic and easy to form; two, it is characterized by low cost and high output with PVC bag.

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< p > many times, PVC zipper bags need to be pressed with cloth zippers. EVA zipper bags are pressed by EVA zippers. These are used in different zippers, zippers, EVA zippers, and PVC zippers. These different zipper configurations are also different.

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< p > PVC zipper bags can be pressed together with several zippers. These zippers can be PVC zippers, PVC zippers, PVC zippers, etc. all these zippers can be pressed on the PVC bag. They are tight, loose, firm and long in use, but the EVA zipper bags are different. If the zippers are not pressed tightly, they are easy to fall off. If the zippers pull back and forth several times, they will be released. This product is of poor quality, so every time you want to do something, you need to pay attention to it. If the EVA bag is not able to use a cloth zipper, the basic EVA bags are all made with the use of the zipper chain or the direct pull.

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< p > there is also a TPU bag, which can press cloth zippers, nylon zippers, etc., can be sticky tight, very strong, will not happen.

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< p > these common zippers are commonly used in plastic bags. Many people may not understand them and need to know more about them.

To be more assured.

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