According to the special properties of aluminum, the sealing machine makes aluminum foil bag products with aluminum and other high barrier materials after dry composite.

The main film substrates of composite bags are: outer printing film BOPA BOPETBOPP inner heat sealing film CPPPE and co-extrusion film. Al foil is also one of the characteristics of aluminum foil bags and composite bags and the difference between aluminum foil bags refers to a kind of composite bags containing aluminum foil. Normally, as the intermediate layer, the plastic buckets sealer is compounded by glue to form a composite membrane according to the requirements.

Aluminum foil bag rare structure: PET / PA / PE or CPPPET / AL L / CPPPA / AL L / CPPPET / AL L / CPPPET / PA 0 / AL L / CPP basic features: PE suitable for low temperature use, CPP suitable for high temperature cooking so that PA in order to increase physical strength, puncture resistance, AL foil is to increase barrier performance, milk tea sealing machine shading is generally used as medium Interlayer PET increases mechanical strength. Toy suction sealing machine then according to the needs, combination, a variety of properties, but also transparent in order to increase barrier oxygen moisture barrier can use water-resistant PVA high barrier coating of 1 aluminum foil bag with metallic luster, filling sealing machine has a high reflection of heat and light, vacuum packaging bag and aluminum foil bag printing color is more exquisite Bright.

Aluminum foil bag is of good insulation, strong maintenance, gas and water impermeability, so the sealing machine can effectively prevent moisture absorption and gasification of the contents, not easily invaded by bacteria and insects, good shape stability, not affected by changes in humidity. 3. Local aluminum plating by shielding or elution can obtain any pattern and any transparent window. Aluminum foil sealing machine allows customers to see the contents of the packaging. This is a major progress in the production technology of aluminum foil bags, and is also a remarkable feature of aluminum foil bags. The difference between composite bags and aluminum foil bags, vacuum bags.