Aluminum foil refers to aluminum and aluminum alloy sheets with a thickness of ≤0.2mm, and its hot stamping effect is comparable to that of pure silver foil, so it is also called fake silver foil. From thick foil to single zero foil to double zero foil, the thickness of this material is no more than 0.2mm, but a thin piece contains plenty of energy. Aluminum foil has fully entered our lives.
The specific process flow of aluminum foil is: convert bauxite into alumina by Bayer method or sintering method, and then use alumina as raw material to provide primary aluminum through high temperature molten salt electrolysis process. After adding alloy elements, electrolytic aluminum is extruded and rolled into aluminum foil, which is widely used in packaging, air conditioning, electronics and other fields.
Because of its characteristics, aluminum foil is used for food, beverage, cigarette, medicine, photographic film, household daily necessities, etc., and is usually used as its packaging material; capacitor material; thermal material for construction, vehicles, ships, houses, etc.; also used as wallpaper, Various stationery prints and decorative trademarks for light industrial products, etc. Among the various applications mentioned above, tin foil is often used as a packaging material. Aluminum foil is a soft metal film, which not only has the advantages of moisture-proof, air-tight, light-shielding, wear-resistant, fragrance-preserving, odorless, etc., but also has an elegant silver-white luster, easy to process beautiful patterns and patterns of varied colors. Therefore, it’s easy to be favored by people. Especially after the foil is compounded with plastic and paper, the shielding property of tin foil is integrated with the strength of paper and also the heat sealing property of plastic, which further improves the insulation against vapour, air and ultraviolet rays, and broadens the applying market of aluminium foil.
Post time: Jun-09-2022