The use of this composite aluminum foil material can ensure that food does not deteriorate for at least one year. Moreover, heating and opening packages are very convenient and are very popular among consumers. With the improvement of people's living standards and the development of tourism, the demand for beverages such as beer and soda and canned food is increasing day by day, all of which require modern packaging. and decoration to facilitate competition in the international market.
In order to meet the requirements of the market, people have developed packaging materials such as plastic films and spray foils with good shielding properties, but their comprehensive properties are not as comprehensive as those that can be supplemented and improved by overcoating and lamination. Therefore, it can be said that aluminum foil is a relatively perfect packaging material with many excellent properties, and it has fully demonstrated its broad application prospects in many fields.
In order to improve rolling efficiency and the quality of aluminum foil products, modern aluminum foil rolling mills are developing in four directions: large coil, wide width, high speed, and automation. The roll width of modern aluminum foil rolling mills has reached more than 2200mm, the rolling speed has reached more than 2000m/min, and the coil weight has reached more than 20t. The corresponding level of rolling mill automation has also been greatly improved, with thickness control systems (AGC) generally installed, and most of them equipped with flatness gauges (AFC). The aluminum foil industry is facing a period of rapid development.
Aluminum foil can be divided into thick foil, single zero foil and double zero foil according to thickness difference. Thick foil ("heavy gaugefoil"): foil with a thickness of 0.1~0.2mm. Single zero foil ("medium gauge foil"): foil with a thickness of 0.01mm and less than 0.1mm/, double zero foil ("light gauge foil"): the so-called double zero foil is the decimal point when its thickness is measured in mm There are two zeros behind the foil.
