For many years, people have been fighting against bacteria, especially in food storage packaging, such as raw meat without any environmental and maintenance measures, the shelf life will not exceed 28 days, and the freshness is only guaranteed for 5-7 days. High-barrier stretch film is often used in food packaging. What aspects should be paid attention to in the production of this packaging film?
In order to achieve high barrier, oil resistance, high temperature resistance, low temperature freezing resistance and other characteristics of food stretch film, the material selection is undoubtedly crucial! And through the structural combination of materials, it can achieve the functions of quality preservation, freshness preservation, fragrance preservation, puncture resistance and other functions of food packaging.
The production cost of stretch film is low, and one of the manifestations is that on the production equipment, the food stretch film must be able to achieve large-scale automation of the production of high-barrier stretch film for food. When the food high barrier stretch film manufacturer completes the automatic production of the food high barrier stretch film from the "printing-compounding-slitting" process, it can not only improve the production efficiency, but also save labor costs.
After the water and the film surface are directly contacted and cooled, it can be rapidly cooled and spherically stretched. Its flatness is slightly inferior to that of the casting method, but its transparency is better than that of the casting method. At the same time, the spherical stretching has a high barrier to the produced food. The ductility of the stretch film has an effect.
After cooling by the cooling roller, the food high-barrier stretch film made of food stretch film has a certain stretch in the longitudinal direction and no stretch in the transverse direction, and the overall flatness is good. plastic method.
