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

The main film substrates of the composite bag are the outer layer of printable film BOPABOPETBOPP inner layer of heat-sealable film CPPPE and co-extruded film. AL (aluminum foil) is also one of them. These materials are usually used as the middle layer. According to requirements, the plastic barrel sealing machine uses glue to compound into a composite film!

The common structures of aluminum foil bags are PET/PA/PE or CPPPET/AL/CPPPA/AL/CPP PET/PA0/AL/CPP. The basic characteristics are: PE is suitable for low-temperature use, CPP is suitable for high-temperature cooking so that PA is to increase physical strength, Puncture resistance, AL aluminum foil is to increase the barrier performance, milk tea sealing machine shading is generally used as the middle layer of PET to increase mechanical strength. The toy blister sealing machine is then based on requirements, combinations, various properties, and there are also transparent, in order to increase the barrier.

  [Oxygen and moisture resistance] Water-resistant PVA high-barrier coating can be used.

1. The aluminum foil bag has a metallic luster, the filling and sealing machine has a higher 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 and strong protection performance. It has the characteristics of airtight and moisture. Therefore, the blister sealer can effectively prevent the content from absorbing moisture and vaporization and is not susceptible to bacteria and insects. Its shape is stable. Good, not affected by changes in humidity.
   
   
3. Use shielding or elution for partial aluminum plating, which can obtain any pattern and any transparent window. The aluminum foil sealing machine allows customers to see the contents of the package. This is a major advancement in aluminum foil bag production technology, and it is also an aluminum foil bag. Notable features.