Big fact! ！ ！ Aluminized composite packaging film dealuminated phenomenon and the solutions

Packaging film is now the general customers very like a form of packaging, it compared with the ordinary plastic bags, both reduced the bag making the production process, and reduce the cost. Of the aluminized composite packaging film is a kind of very popular, but small make up recently heard a customer response, he USES the original manufacturers of aluminized composite packaging film appeared serious dealuminated phenomenon. Small make up today to give everybody explosive Revelations, aluminized composite packaging film of aluminum phenomenon has two kinds: aluminized surface appear sheet, aluminum plating layer black spots disappear. 1. Appear flake aluminium coated surface black spots: this due to the vacuum aluminum plating layer is very thin, easy to meet a wet oxidation, which appears on the surface of the thin film of aluminium flake black spots. 2. Aluminized layer: especially PET aluminum plating film/PE film packaging, and PET aluminum plating film/PE film composite bags of edge. This is because be affected with damp be affected with damp or intermediate solvents erosion by adhesives, can disappear in aluminum, is also a kind of the phenomenon of aluminum. Aluminum plating film of aluminized layer be affected with damp be affected with damp or erosion of the solvent by adhesives, also can make composite membrane layer, blew up when PE film shrinkage internal stress of the springback, the aluminum to the inner membrane, so lost in the plane of the membrane mirror aluminum, also like disappeared out of sight. If you see, in fact, trace amounts of metal aluminum has concentrated on the inner membrane. How do we solve? 1. Aluminized composite bags sealing edge must be good, pay attention to don't adhesive and PE film, aluminum plating surface should be coated with aluminum compound with facial mask, then put the aluminum plating film surface and the inner PE film compound. 2. Pay attention to the aluminum plating thin film composite bags, unfavorable as boiled and cooking bags.