The diffusion force of food packaging bag is: when the adhesive extrusion is in close contact with the substrate, the thermal movement of molecules will cause mutual diffusion at the interface. The closer the compatibility is, the easier the diffusion will be. At the same time, the lower the molecular weight of adhesive extrusion is, the more favorable the diffusion will be. However, the substrate has a highly crystalline molecular structure, and the diffusion between molecules is not easy to occur due to the close aggregation of molecular bonds. For example, polyester, although it is a high surface energy material, but it is not easy to bond. The reason is that it belongs to the molecular structure of high crystallinity, and the material is very close. Diffusion makes the interface fuzzy, you have me, I have you, this force is also part of the formation of bonding force.
Dongguan Beite packaging materials Co., Ltd. - located in Dongguan City, the world's manufacturing city, is a subsidiary of Beite packaging (China) Co., Ltd., with a plant area of 6000 square meters. It is a flexible packaging enterprise integrating R & D, production and sales. It has a complete set of domestic advanced production equipment, a scientific and humanized management system and a group of experienced technical personnel For backing, to provide customers with quality products and first-class service.
The company produces composite bags, roll film, fruit bags, aluminum foil bags, suction mouth bags, self-supporting bags, zipper bags, anti-static bags, special-shaped bags, etc., which are suitable for the internal and external packaging of food, daily chemicals, electronics, toys, medicine, cosmetics, industrial products and other industries.
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