In the PE protective film, if it shows a crystal point, the detailed reason is because:
Reason one: The material used for the protective film does not meet the cleanliness standards, and may be contaminated by dust.
Reason two: In the selection of raw materials, there is no suitable selection. Perhaps the compatibility between several raw materials is not good, and then the crystal point occurs.
Cause three: In the processing of the protective film, the processing temperature is not controlled well, and then the material is poorly plasticized, maybe it is excessively plasticized, and then the crystal point occurs.
Cause four: There is a problem in the processing equipment, the equipment itself has quality problems, maybe the processing capacity of the equipment is not good, etc.https://www.pe-protectionfilm.com/