The Reasons Affecting The Viscosity Of Stretch Film

Stretch film itself is a certain viscosity, which is with its own raw material had a profound relationship, it serves as a kind of more common packaging products in the logistics industry, its high viscosity, will make the product packaging is strong, but once the viscosity is reduced, will greatly reduce the function of protection, so will cause certain damage, therefore, In order to reduce the occurrence of this situation, we need to find out the factors that affect its viscosity and avoid it in time. Specific we through the following simple introduction.

(1) There are many materials for the production of stretch film, which mainly depends on the application field of the product, so if you want to control its viscosity, you can work hard on the material. It is not all C4-LLDPE can be matched, C6, C8 materials are often used because of their easy processing, and the temperature will also affect its viscosity, generally we will put the product in the environment of 15 to 25 degrees, if the temperature exceeds 30 degrees, the viscosity will increase; If it goes below 15 degrees, the viscosity will deteriorate again.

(2) Due to the composition of polyethylene in the stretch film, we can adjust the amount of polyethylene in the adhesive layer to achieve the required viscosity; Because the molecular weight distribution of the stretch film is relatively narrow, the processing range is also relatively narrow, so usually as long as the addition of 5% polyethylene, can achieve the effect of reducing the melt viscosity, so its flatness will also be improved to increase the flatness of the film.