The composition standard of PE heat shrinkable film

PE heat shrinkable film is suitable for the whole packaging of wine, cans, mineral water, various beverages and other products. The product has good flexibility, impact resistance, tear resistance, not easy to break, not afraid of moisture, and shrinkage. Big. The current PE heat shrinkable film has limitations in strength and toughness, and HDPE is generally used to increase the degree. For example, the prior art CN101049749A discloses a high-transparent multilayer polyethylene heat shrinkable film, which has a three-layer structure, wherein the upper layer and the lower layer are both a mixture of metallocene M-LLDPE, LLDPE, LDPE and additives, and the middle layer Use a mixture of LDPE, LLDPE, and HDPE. However, HDPE will greatly reduce the toughness of PE heat shrinkable film, and it is easy to break during transportation after beverage packaging. Therefore, how to improve the stretch and toughness of PE heat shrinkable film has become an urgent problem to be solved. PE heat shrinkable film has tested that polyethylene is the main component of shrink film. Polyethylene is a compound formed by polymerization of many ethylene monomers. It is tasteless and is widely used in food and pharmaceutical packaging plastics. Polyethylene has stable chemical properties and is not easy to age. , It is easy to degrade and does not react with general oxidants. Silica can be uniformly added to the pe shrink film formula to increase the compactness and smoothness of the shrink film. On the other hand, it can also enhance the toughness of the shrink film and change the tensile strength of the shrink film. Silica also has the effect of anti-ultraviolet rays, which can prevent the degradation of polyethylene by ultraviolet rays and delay the aging of the shrink film. The inspection of PE heat shrinkable film found that the main non-ionic antistatic agent is ethoxylated aliphatic alkyl amine, which is an antistatic agent that can be used in a wide range and can maintain the antistatic effect for a long time. Non-ionic antistatic agent has the advantages of good dispersibility, convenient transportation and good processing performance. The anti-ultraviolet agent in the Pe shrink film formula mainly converts light energy into heat energy to avoid degradation of plastics under ultraviolet radiation. Commonly used ultraviolet absorbers mainly include benzophenone and benzotriazole. At present, Wuhan Plastic Packaging Co., Ltd. mainly uses PVC heat shrinkable film, PE heat shrinkable film, POF heat shrinkable film, PET heat shrinkable film, PE stretch film and other products as its leading products to provide customers with services. Introducing advanced equipment, using well-known brand raw materials, absorbing technical advantages of domestic and foreign counterparts, continuous innovation and exploration, product quality is reliable. It is widely used in trademark printing in beverage, condiment, battery, washing cosmetics and other industries. With complete production line equipment for PVC heat-shrinkable printing film, the products are excellently supplied to several well-known domestic companies and have been well received by customers. Previous: The physical principle of heat shrinkable film Next: Heat shrinkable film can be used for the transportation of a variety of products