Aluminum foil bag packaging usually refers to aluminum plastic composite vacuum packaging bag. This kind of product is suitable for moisture-proof, light-proof and vacuum packaging of large-scale precision mechanical equipment, chemical raw materials and pharmaceutical intermediates. Three or four layer structure is adopted, which has good water and oxygen isolation functions.
Aluminum foil bags are not limited in shape, and can be customized to different specifications and styles, and can be made into flat bags, stereo bags, organ bags, zipper bags and other styles.
Aluminum foil bags are divided into pure aluminum bags and aluminum coated bags. How to distinguish between aluminum coated bags and pure aluminum bags in daily life is summarized as follows:
1、 From the material point of view, pure aluminum bag is pure aluminum with high purity and belongs to soft material; aluminized bag mixed with composite material is brittle material.
2、 From the cost point of view, the price of pure aluminum bags is higher than that of aluminized bags.
3、 From the performance point of view, the moisture-proof and cooling effect of the pure aluminum bag is better than that of the aluminum coated bag. The pure aluminum bag completely avoids the light, and the aluminum coated bag is the shading effect.
4、 In terms of use, pure aluminum bags are more suitable for vacuuming, such as cooked food, meat and other products, while aluminum coated bags are suitable for tea, powder, electronic components, etc.
5、 From the perspective of light transmission, put the inside of the bag to the light or sunlight. The one that can see the light through the bag is the aluminized bag, and the invisible one is the pure aluminum bag.
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.