Why do aluminum foil bags often use four layer structure
Sometimes, the aluminum foil packaging bag is not only a layer of aluminum foil. Generally, it is a kind of packaging bag made of a variety of materials. The size and thickness of the bag vary, and the specific packaging depends on the product.
Generally, the outermost layer of aluminum foil packaging bag belongs to nylon material, which is easy to hang ink, has strong ink adhesion, bright color and is not easy to fall off, and has a long life, so nylon is generally used. The second layer is aluminum foil. Aluminum foil is made of metal, which can effectively block the influence of light on commodities, especially infrared ray, etc.; the innermost layer is usually NY film with high temperature resistance and cooking resistance, which is similar to PE film, but has high temperature resistance and will not change randomly. Moreover, it has very good oil resistance and can also block combustion because of its ratio with grease It is close.
Under the protection of other materials, aluminum foil packaging bag can maximize its quality performance. http://m.switzerland-hotel.com/
