In the PE protective film, if it has a crystal point, then the detailed reason is due to:





Reason 1: The materials used in the protective film are not up to the standard in terms of cleanliness, and may be polluted by dust.


Reason 2: In the selection of raw materials, there is no suitable choice, or the compatibility between several raw materials is not good, and then crystal points occur.


Reason 3: In the processing of the protective film, the processing temperature is not well controlled, so that the material is poorly plasticized, or it is excessively plasticized, and then crystal points occur.


Reason 4: There is a problem with the processing equipment, the equipment itself has quality problems, or the processing ability of the equipment is not good.