Aluminum for packaging is one of the uses of aluminum foil. The development of the packaging industry is an important symbol of cultural development and technological progress. Since the 1950s, the rise of composite materials has triggered a revolution in the packaging field, which has a certain impact on the application of foil paper for food packaging. As aluminum foil has a series of good properties, its application range is very wide, and the demand for packaging aluminum is very large.
The food industry is in an important period of vigorous development. The appearance of aluminum for food packaging has greatly improved the level of food processing and accelerated the modernization of people's dietary life. In developed countries, food and beverages mainly use flexible packaging, while the development of flexible packaging in China is relatively lagging.
There are two main applications of aluminum foil in food packaging. One is aluminum-plastic or aluminum-paper composite packaging; the other is aluminum-plastic-paper multilayer composite packaging. The demand for food aluminum foil in China is increasing every year. From the perspective of market development trends, fresh agricultural products and natural foods will become important development markets for packaging aluminum in China.
Aluminum foil used in food packaging has some special requirements. After the package is opened, it can be resealed, and it must have the characteristics of heating, preservation, corrosion protection and moisture resistance. In meeting these characteristics, aluminum foil becomes the preferred food packaging material. In addition, according to foreign statistics, a recycling rate of about 70% of packaging products can be achieved.
The raw materials of aluminum foil for food packaging are mainly 1 series, 3 series and 8 series products. Mainly include models 1060, 1100, 3003, 8011, 8021, etc. The softness and hardness of the alloy is selected according to the needs of the packaged food, that is, the alloy temperament. The commonly used tempers are H14, H16 and H18.
Mingtai Aluminum uses Andritz plate rolls and Honeywell thickness gauges for packaging aluminum. While achieving a good plate shape, it ensures accurate control of the exit thickness. Advanced equipment and excellent instruments ensure the printing effect and mechanical properties of food packaging foil, and improve the temperature resistance of the product.
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