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Aluminum foil bags and Composite bags are two widely used types of packaging bags, both currently holding a certain market share. Their similar appearance makes it difficult to distinguish between aluminum foil pouches and composite bags.

Therefore, this article will help you understand their differences.

First, let's look at what aluminum foil pouches and Composite bags :

(1) Aluminum foil pouches, as the name suggests, are packaging bags containing aluminum foil. They are the common aluminum foil pouches, which are finished products after mixing aluminum and high-barrier materials.

(2) Composite bags: The outer layer can be a printable film (BOPA biaxially oriented polyester BOPP), the inner layer can be a heat-sealable film (polyvinyl chloride polyethylene), and co-extruded films. AL (aluminum foil) is also one of them, usually used as the middle layer. These materials are laminated into composite films with glue as needed.

So how can we quickly distinguish between aluminum foil pouches and Composite bags the differences?

First, the difference in appearance: Generally, aluminum foil pouches have a metallic luster, and have strong reflectivity under sunlight, and the colors printed on aluminum foil pouches look more beautiful.

Second, the difference in insulation performance: Aluminum foil pouches are known for their strong insulation and good protection. Its airtightness and water vapor characteristics can effectively prevent the items in the packaging, making them more convenient and easier to store.

The third difference in packaging: Nowadays, aluminum foil pouches can leave transparent parts anywhere on the pouch, allowing customers to clearly and intuitively see the contents inside.

Composite bags are suitable for vacuum packaging or general packaging of food, electronic products, chemicals, pharmaceuticals, tea, and defense products. The processes include: sealing the edges, sealing the bottom, sealing the middle, and sealing three sides. Four different machines are required. Composite bags Good heat preservation performance, strong protection performance, airtight and impermeable to water vapor. Therefore, this sealing machine can effectively prevent the contents from absorbing moisture and vaporization, is not easily affected by bacteria and insects, has good shape stability, and is not affected by humidity changes.

These are the differences between aluminum foil bags and Composite bags I hope my analysis is helpful to you.