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POF Shrink Film Raw Material Requirements

Jul. 18, 2019

Polyolefin Shrink Film is a superior and easy-to-use multilayer film that is processed by co-extrusion blow molding with imported PE and PP as the main raw materials and necessary functional additives such as slip agent, anti-blocking agent and antistatic agent. Production, its special superior performance has been widely used in advanced countries in Europe and America, suitable for L-type sealing machine, semi-automatic and high-speed automatic sealing machine. It has a large shrinkage rate of up to 75% and good flexibility. It can be used for packaging any shape of the product, and the shrinkage force of the three-layer co-extruded film treated by special process can be controlled to meet the shrinkage requirements of different commodity packaging. Can be packaged in regular and irregularly shaped products, including: bowls, stationery, books, toys, insecticides, detergents, daily necessities, food, cosmetics, canned beverages, records and videotapes, wood products, medicines, health products and many more. As a Shrink Film Supplier, let's explain it to everyone.

The main raw materials for the three-layer co-extruded heat shrinkable packaging film include LLDPE (linear low density polyethylene), TPP (ternary copolymerized polypropylene), PPC (binary copolymerized polypropylene) and necessary functional additives such as slip agents. Anti-blocking agent, antistatic agent, etc. These raw materials are environmentally friendly and non-toxic materials. The process and product application process will not produce toxic gases and odors. The hygienic performance of the products conforms to the US FDA and USDA standards and can be used for packaging foods.


Cross Linked Film


Production process

The three-layer co-extruded heat shrinkable packaging film is made of linear low density polyethylene (LLDPE) and copolymerized polypropylene (TPP, PPC) as main raw materials, adding necessary additives, and processed by co-extrusion blow molding process. Different from the traditional blow molding process, due to the poor tensile properties of PP melt state, it can not be used in the traditional blow molding process, but the double bubble process, also known as the Planti process in the world, it is the extrusion of raw materials. The product is melt-extruded, and the product is formed by a specially designed co-extrusion die, which is formed into a preliminary film and then quenched, and then heated and inflated and stretched.

Our company specializes in Cross Linked Film, please feel free to contact us at https://www.brjshrinkfilm.com