With the increasing enrichment of people's quality of life, the variety of food is also constantly enriched Different kinds of food have different packaging.
Food packaging bags can help extend the shelf life of food, but for some different materials, the preservation effect is different.

Aluminum foil bag is common in food packaging, and its use must meet certain sealing requirements, which also needs to ensure the sealing degree of aluminum foil bag.

The common and strict sealing method is heat sealing.
The heat sealing method is to fuse two layers of aluminum foil into one layer, which will not cause cracking or fracture and leakage, so as to realize the sealing requirements. Food packaging bag is made by the functional requirements of the manufacturing process requirements, so that packaging to achieve a certain effect.
Aluminum foil packaging bag has many specifications, not only the size is different, its thickness is not the same, which also makes it meet the packaging requirements of a standard.
Different product packaging, the thickness of the packaging bag is different, which is determined by the packaging nature of the product. For the product with strict vacuum requirements, the material thickness used is larger.
For aluminum foil, the greater the thickness of the bag, the more rigorous the packaging function, the more able to meet the packaging requirements, but the packaging cost will be higher, the cost of packaging materials is calculated by quality.
Food packaging bag is not only made of aluminum foil, but also made of composite materials. This composite material is made of aluminum foil and nylon, and some are made of four layers of coextrusion film. When packaging some food, it is often multi-layer composite material.
The reason for using multi-layer composite materials is to pack food and maintain the quality of food. Another reason is that rich colors and patterns can be printed on the food packaging bags. This is a way to get food market recognition and also a necessary way for food publicity.
Dongguan Beite packaging materials Co., Ltd. is a large-scale company specializing in the production of food grade composite packaging. It is a professional manufacturer of composite packaging bags. It uses new equipment to produce packaging bags and roll films, providing comprehensive, environmental protection and safety packaging services for the market.
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.