China Stretch Wrap

China Stretch Wrap Production Process It is produced by the proportion of imported linear polyethylene LLDPE resin and tackifier special additives. It can produce multi-functional stretch films such as hand-use, resistance-type machine, pre-stretching machine, anti-ultraviolet, anti-static and anti-rust. Advantages 1. Using double-layer co-extrusion equipment, the extruded stretch film can maximize the characteristics of each polymer, and its transparency, tensile strength, anti-piercing strength, and the optimal state when it reaches the melting point. 2. It has good tensile properties, good transparency and uniform thickness. 3. It has longitudinal extensibility, good resilience, good transverse tear resistance and excellent self-adhesive lap joint. 4. It is an environmentally friendly recyclable material, tasteless, non-toxic, and can be directly packaged for food. 5. It can manufacture single-sided sticky products, reduce the noise during winding and stretching, and reduce dust and sand during transportation and storage. 50cm Stretch wrap for tack control Good stickiness makes the packaging film layer and layer outside the goods stick together to make the goods firm. There are two main ways to obtain stickiness: One is to add PIB or its masterbatch to the polymer; The other is to blend VLDPE. PIB is a translucent viscous liquid. Direct addition requires special equipment or equipment modification. Generally, PIB masterbatch is used. There is a process for PIB to move out, which generally takes three days. In addition, it is also affected by temperature. When the temperature is high, the viscosity is strong; when the temperature is low, it is not too sticky, and the viscosity is greatly reduced after stretching. Therefore, it is best to store the finished film within a certain temperature range (recommended storage temperature is 15 鈩?~ 25 鈩?. Blending VLDPE, the viscosity is slightly worse, but there is no special requirement for the equipment, the viscosity is relatively stable and not controlled by time, but it is also affected by temperature. The desired viscosity is achieved by adjusting the amount of LLDPE in the adhesive layer. This method is mostly used in three-layer co-extrusion.China Stretch Wrap website:http://www.kaixiang-packaging.com/stretch-wrap/