Cross-linked film is a kind of POF shrink film, which is suitable for packaging products with some special needs, such as electronic products, banknotes, lottery tickets and other special products, and the shelf effect of cross-linked film is also very good. Let’s learn more about what cross-linked film is.
What is cross-linked film
The cross-linked film is a linear density poly low ethylene as the middle layer, a total of polypropylene as the inner and outer layers, through the three extruders plasticizing extrusion, and then through the die head molding, film bubble blowing and other processing. Heat shrink packaging film is a multilayer environmentally friendly heat shrink packaging material produced by co-extrusion blow molding process with PE and PP as the main raw materials.
The main use of cross-linking film
The main use of crosslinking film is reflected in the glass protective film, electronic products protective film, automotive protective film, household protective film, food preservation film. At present, electronic products with more common, such as cell phones, computers, iPads, and other products, life there are many similar protective films, the application is very wide. Cross linking film has an excellent shrinkage rate, and the sealing is firm and durable, with a wider range of shrinkage temperatures.
Crosslinking film is an environmentally friendly material, belonging to odorless product packaging bags, with lively active genes. It can react with double bonds, hydroxyl and other genes under the action of catalyst, which is the basic raw material of leveling agent, defoamer, water-soluble silicone oil and other products. Good waterproof, can be used as waterproof agent for glass, paper, metal, ceramics, cement and other items.
Cross linking membrane is actually good at what?
1, cross-linked film is actually a kind of shrink film, suitable for packaging products with certain special needs, such as electronic products, banknotes, lottery tickets and other special products, the shelf effect of cross-linked film is also very good. Mainly applicable to mechanical packaging, is to be used with the shrink machine will have a significant effect.
2, POF crosslinking heat shrink film has a very excellent shrinkage rate, and sealing firm, long-lasting, shrinkage temperature range is wider. Surface treatment strength, PE surface tension is extremely low, need to be corona treatment before printing, so corona treatment strength is the key indicator of film printing.
3, POF cross-linked film has excellent mechanical properties, such as longitudinal and transverse tensile strength, fracture productivity, POF cross-linked film has excellent tensile properties, easy to stretch deformation. Various kinds of resistance, such as friction resistance, sunlight resistance, solvent resistance. For occasions with high hygiene requirements, the film should pay attention to its solvent residue characteristics when printing.
4, cross-linked film is also an environmentally friendly material, belonging to odorless product packaging bags, with lively active genes. Can react with double bond, hydroxyl and other genes under the action of catalyst, which is the basic raw material of leveling agent, defoamer, water-soluble silicone oil and other products. It is excellent in waterproofing and can be used as waterproofing agent for glass, paper, metal, ceramics, cement and other articles.
In general, cross linking film has many advantages, and at present, crosslinking film is mainly used in various fields in flexible packaging, such as the packaging of cosmetics. Due to the crosslinking treatment, the individual physical indicators are very good, and also suitable for the field of heavy packaging, and profiles of the packaging field, such as home furnishing combination of products packaging.