In addition to cigarette packaging, aluminum foil applications in the packaging industry include: aluminum plastic composite bags, pharmaceutical aluminum foil blister packaging and chocolate packaging. Some high-end beer also wrap aluminum foil on the bottle. Medicinal blister packs include medicinal aluminum foils, PVC plastic rigid sheets, and heat-sealable coatings. Medicinal aluminum foil is a sealing material that is sealed on a plastic hard sheet, and has the advantages of non-toxicity, corrosion resistance, impermeability, thermal resistance, moisture resistance, light blocking, high temperature sterilization, and the like. The thickness of medicinal aluminum foil is generally 0.02 mm. It consists of a protective layer, an ink printing layer, a substrate, and an adhesive layer. Because of the high cost, the aluminum blister is mainly used for some expensive pharmaceutical packaging.
In addition to producing soft cans, aluminum-plastic composite bags have a wide range of uses in small foods, fried foods, and the like. In addition, aluminum-plastic composite bags can be packaged in pharmaceutical tablets or powdered Chinese medicine. Due to its excellent barrier properties, aluminum-plastic composites are also used in large quantities for ordnance and military supplies packaging.
However, aluminum foil is also facing competition with other materials. In the area of ​​food packaging, the main competition is from high-barrier composite plastic films such as nylon, EVOH, and PEN. The latter is transparent and makes the packaging more attractive. The pharmaceutical aluminum foil is competitive with the hard PVC film coated with PVDC, which has an advantage in cost. Of course, greater competition comes from the development of aluminum plating technology. Because the vacuum aluminum plating products can be based on a variety of materials such as paper or plastic, the application range is wide and the cost is low. Therefore, in many low-end markets, the aluminum foil application market is invaded. Such as vacuum aluminum coated paper with a metallic luster and easy to print, to meet the beauty and fashion requirements of cosmetics; Second, vacuum aluminum paper is easy to laser holographic processing, has a good anti-counterfeiting effect, according to the needs of different cosmetics on the packaging Increase the flash of laser logos or specific pretty patterns. Therefore, vacuum aluminum-plating packaging materials have gradually replaced aluminum foil composite paper as the main aluminum paper substrate in many occasions.