Aluminum foil, due to its excellent properties, is widely used in food, beverages, cigarettes, pharmaceuticals, photographic substrates, household goods, etc., and is usually used as a packaging material; Electrolytic capacitor materials; Insulation materials for buildings, vehicles, ships, houses, etc; It can also be used as decorative gold and silver threads, wallpaper, as well as decorative trademarks for various stationery printing products and light industrial products. Among the various uses mentioned above, the most effective way to utilize the performance of aluminum foil is as a packaging material. Aluminum foil is a soft metal film that not only has the advantages of moisture resistance, airtightness, light shielding, wear resistance, fragrance retention, non-toxic and odorless properties, but also has an elegant silver white luster, making it easy to process beautiful patterns and designs of various colors, making it more popular among people. Especially after aluminum foil is combined with plastic and paper, the shielding properties of aluminum foil are integrated with the strength of paper and the heat sealing properties of plastic, further improving the necessary shielding performance against water vapor, air, ultraviolet rays, bacteria, etc. as packaging materials, greatly expanding the application market of aluminum foil. Due to the sufficient isolation of the packaged items from external light, moisture, air, etc., the packaging is well protected. Especially for the packaging of steamed and boiled food, using this composite aluminum foil material can ensure that the food will not spoil for at least one year. Moreover, heating and opening the package are both very convenient and popular among consumers.
With the improvement of people's living standards and the development of tourism, the demand for beverages such as beer, soda, and canned food is increasing day by day. These require modern packaging and decoration to facilitate competition in the international market. In order to meet market requirements, people have developed packaging materials such as plastic films and spray coated foils with good shielding properties, but their comprehensive performance cannot be compensated for and improved by coating and laminating processing. Therefore, it can be said that aluminum foil is a packaging material with various excellent properties and is relatively perfect, fully demonstrating its broad application prospects in many fields.
