Protective performance of pvc shrink film packaging

The protective performance of pvc shrink film packaging Release time: 2019-09-23 PVC heat shrinkable film is a new generation product that has gradually emerged in recent years and has been accepted by people. The environment-friendly multi-layer co-extruded polyolefin PVC heat shrinkable film uses linear low-density polyethylene (LLDPE) as the middle layer and co-polypropylene (PP) as the inner and outer layers in special equipment. The inner, middle, and The outer three layers are co-extruded to produce a heat shrinkable film with high transparency, high shrinkage and good heat sealing performance. The PVC heat-shrinkable film is made of ethylene PVC resin mixed with more than ten kinds of auxiliary materials and then inflated twice. It is characterized by good transparency, easy shrinkage, high strength, shrinkage rate can be adjusted freely according to user needs, and strong operability. Printing-grade PVC shrink film, as the name suggests, is used for printing and can be processed into printed labels. Most of the beverages on the market use PVC labels, such as the labels used on black tea, green tea, and mineral water bottles. Ordinary packaging grade PVC shrink film can be made into tubular film as required, L-shaped fold film, and can be processed into tube bags, flat bags, although ordinary packaging grade PVC shrink film can also be used for printing, but the printing effect is not fine, and The number of colors that can be printed is small, generally one type is printed, and two colors are mostly printed. Nowadays, shrink film technology has been developed to use it for packaging of every product. The protective performance of pvc shrink film packaging: in the production process, the pvc shrink film is stretched directionally, and the shrink film is subjected to heat shrinkage during use. Previous: Practical performance of pvc heat shrinkable film