What is the difference between aluminum foil bags and composite bags?

The main film substrates of the composite bag are: outer layer printable film BOPABOPETBOPP inner layer heat sealable film CPPPE, and co-extruded film. AL (aluminum foil) is also one of them. Usually, these materials are used as an intermediate layer. According to requirements, the plastic barrel sealing machine is compounded into a composite film by glue.

Common structures for aluminum foil bags are: PET/PA/PE or CPPPET/AL/CPPPA/AL/CPPPET/PA0/AL/CPP

The basic features are: PE is suitable for low temperature use, CPP is suitable for high temperature cooking, PA is for increasing physical strength and puncture resistance, AL aluminum foil is for increasing barrier performance, and milk tea sealing machine is generally used as intermediate layer PET to increase mechanical strength. It’s crisp. Toy blister sealing machine then according to the needs, combination, various properties, also transparent, in order to increase the barrier

[Oxygen barrier]

Can use water resistant PVA high barrier coating.

1. The aluminum foil bag has metallic luster. The filling and sealing machine has high reflection ability to heat and light, and the printing color of the aluminum foil bag is more beautiful and bright.

2. The aluminum foil bag has good insulation performance, strong protection performance, and has the characteristics of non-breathable body and water vapor. The plastic sealing machine can effectively prevent moisture absorption and gasification of the contents, is not easily damaged by bacteria and insects, and has shape stability. Ok, not affected by humidity changes.

3, using shielding or elution for partial aluminizing, can get any pattern and any transparent window, aluminum foil sealing machine so that customers can see the contents of the package, which is a major advancement in the production technology of aluminum foil bags, but also a foil bag Notable features.