UNIYOUNG shows you how to make thin, thick and uniform stretch film

Only by mastering the good stretch film production process can we make a stretch film with uniform thickness and satisfactory to manufacturers and consumers. Processors can complete a more stable processing process, increase output, reduce film thickness, and simplify the acquisition of resin materials. MPE resin has a wide processing range on LLDPE and LDPE film processing equipment, which can cope with the changes of production conditions. It is a product for producing high toughness and high transparency film, which can significantly reduce the film thickness.

For the production and manufacture of stretch wrap film, the raw material resin is also very important. Process: compared with LLDPE / LDPE resin, it can still provide better results. As a multifunctional resin, MPE resin can create value in multi-layer blown film production line, cast film production line and single-layer blown film production line. Contributed to sustainable development. In the early stage, LLDPE stretch film was mostly blown film, which developed from single layer to two and three layers; Now LLDPE stretch film is mainly produced by tape casting. Because the molecular weight distribution of stretch film is narrow, the processing range is also narrow, and the processing conditions are difficult to control, 5% LDPE is generally added to reduce the melt viscosity and add the flatness of stretch film. Tape casting has the advantages of uniform thickness and high transparency, which can be applied to the requirements of high magnification pre drawing. Because single-layer tape casting can not do single-sided adhesion, its application scope is limited. Therefore, the three-layer coextrusion structure is ideal. The tensile film produced has uniform thickness, good tensile force and is not easy to crack.