When aluminum foil is used in food packaging, it has the functions of preserving fragrance, color, taste and quality. Because of these near-perfect features, it is very popular in the food packaging industry.
Aluminum container is a kind of food container made of aluminum foil with certain strength and toughness after stamping and forming. Compared with other materials, it has the characteristics of light material, high barrier, UV resistance, moisture resistance and corrosion resistance, and long shelf life. Because aluminum can better maintain the freshness and moisture of food, it is more in line with modern people's concept of environmental protection and healthy life.
Food container aluminum foils include 8011, 3003 and 5052 aluminum foil. Aluminum alloy 5052 foil is a little more expensive than the first two, but the performance is also better. The thickness of bare aluminum container foil is generally between 0.03mm-0.20mm, which can be divided into two types: wrinkled and wrinkle-free.
It uses 5 series as the raw material of aluminum ingots, which is cold-rolled or hot-rolled into aluminum foil rolls with uniform thickness, smooth surface, no voids, no dust particles, and no peculiar smell.
5052 aluminum foil can be used for food packaging and food container. 5052 aluminum foil is of good shape, no black wire, no bright line and no holes. In the alloy composition of aluminum foil, various toxic elements must meet the requirements, such as: Pb≤0.2mg/kg, Cd≤0.02mg/kg, As≤0.04mg/kg, and some countries and regions also put forward specific requirements for toxic elements such as Ni and Cr6+.
The bare aluminum container foil has extremely strict requirements on the thickness of the foil. Haomei Aluminum uses Honeywell thickness gauges to accurately control the thickness of the aluminum foil produced. First-class equipment and top-notch instruments ensure the printing effect and mechanical properties of food packaging foils, and improve the product's resistance to air and temperature.