What factors can cause the stretch film to not open?
Packaging goods are generally used in the stretch film, in today's packaging field is the most extensive raw materials, it has excellent lacing, ductility, light transmission.
In fact, there are many reasons why the stretch film can not be opened. In addition to removing these storage and transportation, it is the reason of the production process. The high-pressure polyethylene stretch film made with metallocene and viscosizer can improve the tensile strength and viscosity of the stretch film. To cut costs, many waterproof coil manufacturers add small amounts of metallocene and viscosinics to their recipes, or none at all. The tensile properties and viscosity of the stretch film are reduced. If the summer temperature is high, it is likely to slow down. But in winter, because the temperature is too low, the tensile properties and viscosity of the stretch film are low, so that it can not be opened!