Aluminum foil is a kind of hot stamping material with metal aluminum directly rolled into a sheet, and its hot stamping effect is similar to that of sterling silver foil, so it is also called false silver foil. Due to the soft texture of aluminum, good ductility, with a silver-white luster, if the rolled sheet, with sodium silicate and other substances mounted on offset paper to make aluminum foil sheets, can also be printed. Because of its excellent characteristics, aluminum foil is widely used in food, beverages, cigarettes, medicines, photographic plates, household necessities and so on.