When we use PE protective film, we often see some white spots or black spots on the surface of the protective film, especially on transparent film or black and white film. What are the reasons for these impurities? The main cause of the problem is more complicated, and it is more difficult to analyze what causes it on the spot. Due to the limitations of processing technology, environment and raw material quality, it is difficult to avoid completely.
1. The crystal point of the original film is affected by the quality of the raw material;
2. The workshop environment is poor, and there are more small particles on the air or machine table;
3. The coating glue is dirty and part of the glue itself is caused by the performance.https://www.snpefilm.com/