3 reasons for static electricity generated by PVC blister film

As a widely used decorative material, PVC blister film is often used in furniture decoration. It is mainly used for furniture decoration and maintenance. It can effectively prevent sharps from abrasion, acid and alkali liquid corrosion, and humid climate for furniture. The damage can effectively protect the life of the furniture and prolong the service life of the furniture. But the PVC blister film will also generate static electricity. What is the reason for this? 1. The static electricity generated in the process of printing, compounding, slitting and bag making is due to the friction between the PVC blister film and the guide roller, and the high-speed operation. The friction of the PVC blister film and the dry air causes the PVC blister film to generate static electricity. This part of the static electricity has a great impact on production, and if it cannot be effectively eliminated, it will also have a great impact on the post-processing process. Generally speaking, it is more effective to use a superconducting electrostatic brush (contact elimination), which is to contact the PVC blister film to pass the generated static electricity through a brush with a low resistance (1m wide resistance less than 1). Ground export to solve this problem. The ion generator can also be used, and the generated ions are blown onto the PVC blister film in the form of wind (non-contact type). However, in actual operation, when the ion gas eliminates the static electricity of the PVC blister film, it will be found that the running PVC blister film will also carry a part of the ions in the air into the winding. 2. Static electricity generated during the production of PVC blister film Due to the friction between the pellets, the friction between the melt and the die head, and the friction with the guide roller when the film is formed and wound, the PVC blister film produces static electricity when it leaves the factory. Therefore, in the production process of PVC blister film, an antistatic agent 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 in which the molecule contains polar hydrophilic groups and non-polar lipophilic groups. The lipophilic group has a certain compatibility with plastics, and the hydrophilic group can ionize or adsorb moisture in the air, forming a thin conductive layer on the surface of the PVC blister film, which is used to leak electric charges, so as to achieve the purpose of eliminating static electricity. 3. The static electricity generated by the finished PVC blister film on the automatic packaging machine The friction between the finished PVC blister film and the equipment guide roller, and the PVC blister film itself is not completely eliminated static electricity and other reasons. It causes difficulties in automatic packaging and the required contents are sensitive to static electricity. At this time, the above methods can also be used to eliminate static electricity. The most effective way is to use the superconducting electrostatic brush method to eliminate. The static electricity generated by the PVC blister film is mainly caused by the three aspects described above, mainly due to the static electricity phenomenon encountered in the production process, because the PVC blister film has the excellent characteristics of macromolecules, and the production cost is relatively low. The price is also relatively low, so it is popular with many consumers!