Aluminum foil and materials on its basis are widely applied in packaging thanks to the unique protective and decorative properties.
Analyzing its functional properties, we can easily see that it has a number of very significant advantages compared to other packaging materials.
Proof. When the thickness of the foil 0.025 mm and higher it is almost impermeable to vapours and gases. Even with the thickness of 0.009 mm, the degree of water vapor transmittance is only 0.01 g/m2 per day, which can be considered more than acceptable.
Corrosion resistance. Compatibility with various chemicals. Natural surface oxide, which is covered with aluminum foil in an air environment, serves as a barrier and substantially prevents the occurrence of corrosion and the effect of chemically active substances.
Hygiene. Compatible with any food products. Aluminum foil is not toxic. It is not attached to food products of any foreign smell or taste, doesn’t let water and other liquids, does not absorb lubricants. In the production process, the foil becomes sterile and does not serve as a favorable environment for the bacteria. It is a material that is inert to virtually any food, beverage, cosmetics, etc.
The ability to acquire and retain a given shape. Foil can be curved and folded arbitrarily. This is probably the only material, which so easily can be given the desired configuration.
The lack of ability to attract. Unlike widely used at present, flexible films, foil is a material virtually eliminating the occurrence of static electricity, which makes it convenient when working on packaging equipment.