Packaging aluminum foils have many advantages such as non-toxicity, heat conduction, shading, moisture barrier, and fragrance retention, so it is widely used. Aluminum foil is made by electrolytic aluminum rolling, it has a shiny metallic luster, non-toxic, insipide, odorless, excellent light-shielding, and a reflectance of 95%. It is stable at high and low temperatures, good barrier properties, résiste à l'humidité, air-proof, fragrance, humidité …