Why does PE heat shrinkable film have crystal points?

When the PE heat shrinkable film manufacturer's product has a crystallization point, the detailed reasons are as follows: 1. The cleanliness of the material used in the protective film does not meet the standard, and it may be contaminated by dust. 2. In the selection of raw materials, no suitable materials were selected. It may be that the compatibility between several raw materials is poor, and then crystallization points are generated. 3. In the processing of the protective film, the processing temperature is not sufficiently operated, and then the plasticization of the material becomes poor. It may be that the plasticization is excessive and crystallization points are generated. 4. The processing equipment has problems, the equipment itself has quality problems, and the equipment processing ability is poor. PE heat shrinkable film can be seen everywhere in our daily life, such as food and electronic products. With the continuous development now, people's requirements for products are getting higher and higher. The required product performance is diversified, such as rough surface, scratch resistance, very clear product surface, and there are many types of film on the market. For example, it can be used for food, it can be used for grinding to keep food fresh, for some electronic equipment, and some automobiles. Films can also be used on the surface. Next: How to use PE heat shrinkable film correctlyPrev: Difficulty in peeling off PE heat shrinkable film