It's time to share the knowledge of packaging bags every day. Today I'd like to tell you about the difference between pure aluminum foil bags and aluminum coated bags.Let's start with the aluminum foil bag.
Aluminum foil bag packaging usually refers to the aluminum plastic composite vacuum packaging bags, such products are mostly used for tea, food packaging, pharmaceutical intermediates packaging use, it has moisture-proof, light-proof, vacuumable characteristics.It adopts three-layer or four-layer composite structure and has good functions of water and oxygen isolation.Unrestricted, can measure the body to make the packing bag of different specification, style, can make flat pocket, stereo bag, organ bag, zipper bag and so on a variety of styles.The product shall be tested according to GB and ASTM standards, meet the requirements of environmental protection (third-party testing report can be provided), and meet the most stringent environmental protection standards for packaging materials in European Union and North America.
Aluminum foil bag is divided into pure aluminum bag and aluminum bag, so in daily life how to distinguish between aluminum bag and aluminum bag?Here are a few things to sum up:
1. From the perspective of materials, pure aluminum bags are pure aluminum with high purity and belong to soft materials.The aluminum - coated bag is made of brittle composite material.
2. In terms of cost, the price of pure aluminum bags is higher than that of aluminized bags.
3. In terms of performance, pure aluminum bag has better moisture-proof and cooling effect than aluminum bag. Pure aluminum bag is completely light-proof, and aluminum bag is light-blocking effect.
5. the bag facing the light or sunlight, can see the light through the bag is coated with aluminum foil, can not see is pure aluminum foil.