This model has strong performance, wide applicability, various packaging forms and high work efficiency. Stretch film is widely used in food, chemical, light textile products and other industries. Transportation and storage is a necessary process for stretch film. Incorrect transportation and storage will cause the quality of stretch film to decrease. Stretch film is in transportation What are the matters needing attention when storing? The tape should be stored in the warehouse to prevent sun and rain; touch with acid-base oil and organic solvents, insist on cleaning and drying, 1m away from the discovery equipment, and the room temperature is between -15℃~40℃. If the edge material is broken, it should be cut neatly. If the cut is uneven, it is shipped as a finished product. However, due to the different materials, the materials used in the PE wrap film directly contact the food, so the functions are also different. After that, there is one point we should pay attention to is to check the compressive strength and tightness of various interfaces of various membrane products using various connection methods to form a system. The test pressure value is generally based on the system design pressure, which is the system. The multiple of working pressure is taken as the value. First of all, what we do is to test the pressure of the stretch film. The pressure test of the stretch film includes the pressure test of the film product and the pressure test of the film channel system. Usually 5% low density polyethylene is added to reduce the melt viscosity and improve the smoothness of the stretch film. The application of stretch film in building materials packaging The texture of stretch film is light and soft, but it is very strong and can achieve the effect of puncture resistance. It can be stretched 2-3 times, and it can also play a role in preventing moisture and moisture. Packaging materials, performance is very strong.