Aluminum foil packaging bags are also widely used as diaphragms, heat exchange and electrical conductors. They are usually packaged into paper bags for beverages. The thickness of aluminum foil in food packaging bags is only 6.5 microns. The thin aluminum layer helps waterproof, maintain umami, prevent harmful microorganisms, and prevent pollution. Opaque, silver, with anti-gloss, with good barrier properties, high/low temperature resistance, oil resistance, heat sealability, heat insulation, fragrance retention, no peculiar smell, flexibility, etc.
aluminum foil packaging bags play a decorative role by plating thin aluminum powder on the plastic film. Aluminum packaging bag is also called aluminum packaging bag, aluminum foil packaging bag, as the name implies, is a packaging bag containing aluminum foil (pure aluminum foil) in the internal structure. Since the inner structure contains pure aluminum foil, it is referred to as aluminum foil packaging bag, also known as pure aluminum bag , Aluminum and platinum bags. In fact, aluminum foil bags are made of multiple plastic films and a 99.9% pure aluminum layer, and then sealed and cut by a bag forming machine. In terms of performance, it has a better cooling effect than aluminum bags. Pure aluminum bags are completely shaded, and aluminum bags have a shading effect. From the material point of view, the pure aluminum bag is pure aluminum with high purity and is a soft material; the aluminum bag is mixed with composite materials, which is a brittle material. In use, pure aluminum bags are suitable for cooked food, meat and other products, and aluminum bags are suitable for tea, powder, etc. From the cost point of view, pure aluminum bags are more expensive than aluminum bags. Shine the bag toward the light and the sun. What you can see through the bag is aluminum plating, and what you can’t see is pure aluminum foil.
From the appearance, there is almost no difference between the two. Even if the same product is placed in aluminum packaging, it will lose water within one month, and microorganisms may multiply. If you put it in an aluminum foil packaging bag, the same thing may happen in half a year. In order to ensure the quality of interior decoration, many packaging have undergone vacuum treatment. In a vacuum, the internal oxygen will decrease and the environment where microorganisms grow will disappear, which will protect the product.
Secondly, the aluminum foil packaging bag has good stability and will not deteriorate due to the influence of the external environment. From the functional point of view, there is a big difference between the two. First, the aluminum foil bag is pure aluminum foil, so the effect of moisture, shading, waterproof, and oxidation resistance is far stronger than that of the aluminum packaging bag, and the durability is the spokesperson of the aluminum foil packaging bag. Both packaging bags can be printed with patterns. The aluminum foil packaging bag has a soft feel and the aluminum foil bag has a hard feel. Therefore, the storage bag is suitable for food, medicine, chemical products, some electronic parts, and mechanical parts. Due to the need for sealing, storage Bags are also very commonly used. On the other hand, aluminum foil packaging bags are mostly used for express shipments. This does not mean that aluminum packaging bags are not good, but it proves that aluminum packaging is very cost-effective.