博文

目前显示的是 七月, 2021的博文

What are the quality requirements of stretch film

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  What are the quality requirements of stretch film Stretch film  can prevent moisture and dust for the packaged products. They can be packaged together to avoid scattering. So for the sake of safety, we also need to have an in-depth understanding of the standard of use of the product. So, what are the basic requirements for the quality of stretched film? 1. There is no black impurities, the die should be washed clean, and the burnt plastic should not be dropped. If it is found by the naked eye, it must be removed immediately. 2. The paper tubes must be aligned, not long on one side and short on the other side, and the standard of white space on each side is about 1 cm. 3. When packing, pay attention to protect the edges from collisions. The edges will break and cause quality problems. As long as there is a crack in one place, it will lead to the phenomenon of breaking when the stretch film is used. This is why there should be no burrs. 4. Minimize the wrinkles on both ends of...

Stretch film how to better use

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  Stretch film  is widely used in various industrial packaging, such as machinery, building materials, chemicals, household appliances, etc. agricultural packaging, corn stalks, etc. Household and wet packaging, such as fruit, food, vegetable preservation, etc. And developed from shrink packaging. With the rapid development of my country's economy, stretch film has been widely used, and the demand is also growing rapidly. my country's packaging industry is developing rapidly, and now stretch film has become a popular packaging method in the market. The reason why stretch film is so popular is inseparable from the performance of stretch film. For example, PIB masterbatch has a slightly sticky appearance after six-flow treatment. Stretched films are generally PE film materials with sticky additives. It can be self-adhesive. Black stretch film is suitable for the outer packaging of valuables and can effectively prevent theft. Stretch film has the advantages of non-slip, dust-proo...

What is the cause of static electricity in PE stretch film

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  What is the cause of static electricity in PE stretch film In the process of using the PE stretch film, static electricity sometimes occurs. In fact, the static electricity of the  PE stretch film  is sometimes said to be serious but not very serious. The specific situation depends on the situation. Therefore, we should try to avoid the static electricity generated by the stretch film. Happening. To solve this problem, we must first know this problem, then what is the cause of static electricity in PE stretch film? 1. Static electricity is generated during the production of stretched film The friction between the melt and the die, the friction between the film forming roller and the guide roller in the process of PE stretching film. Therefore, in the process of producing stretched films, antistatic agents should be added to eliminate this part of static electricity. It should be said that this effect is still very good. Antistatic agents are surfactants that contain pol...

Factors affecting the tightness of stretch film

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  The main function of the  stretch film  is to pack the goods together and wrap the scattered goods together to prevent loss. This stretch film packaging material is suitable for the logistics and transportation industry. In addition, the stretch film is moisture-proof, scratch-proof, and highly protective, because the tightness of the stretch film can protect the article. Today, the Zhiteng stretch film manufacturer will introduce you to the factors that affect the tightness of the stretch film. 1. Non-polar polymer, the surface free energy of the stretched film is small, and the surface wet tension is low, generally around 30 dyne/cm. 2. Polyester (polyester, polyethylene terephthalate, polyethylene terephthalate, PETG) is a polar polymer with high surface free energy and surface wetness higher than 40 dyne/cm tension. 3. The transfer of the aluminized layer will occur during aluminum plating, and the transfer of the glue layer will occur during glue coating. Especiall...