A kind of hot stamping material with metal aluminium directly calendered into a thin sheet, its hot stamping effect is similar to that of pure silver foil hot stamping, so it is also called fake silver foil. Due to the soft texture and good ductility of aluminium, with silver-white luster, if the calendered sheet, with sodium silicate and other substances mounted on offset paper made of aluminium foil sheet, can also be printed. However, aluminium foil itself is easy to oxidize and darken, rubbing, touching, etc. will lose colour, so it is not suitable for long term preservation of book covers and other hot stamping.

Aluminium foil, because of its excellent characteristics, is widely used in food, beverages, cigarettes, medicines, photographic substrates, household goods, etc., and is usually used as a packaging material; electrolytic capacitor material; insulating material for buildings, vehicles, ships, houses, etc.; and can also be used as decorative gold and silver wire, wallpaper, as well as various types of stationery prints and decorative trademarks for light industrial products. Among the above applications, aluminium foil can be most effectively used as a packaging material. Aluminium foil is a soft metal film, which not only has the advantages of moisture-proof, airtight, light-shielding, abrasion-resistant and corrosion-resistant, aroma-preserving, non-toxic and odourless, etc., but is also more likely to be favoured by the people because of its elegant silvery-white luster and the ease with which it can be processed to produce various colours of beautiful patterns and designs. Especially after aluminium foil is compounded with plastic and paper, the shielding property of aluminium foil is integrated with the strength of paper and the heat sealing property of plastic, which further improves the shielding performance against water vapor, air, ultraviolet rays and bacteria necessary for packaging materials, and greatly broadens the application market of aluminium foil. As the packaged items are fully isolated from external light, moisture, air, etc., the packages are thus well protected. Especially for the packaging of boiled food, the use of this composite aluminium foil material can ensure that the food will not deteriorate for at least one year. Moreover, it is easy to heat and open the package, which is popular among consumers.

features

Aluminium foil has a clean, hygienic and shiny appearance, it can be made into an integrated packaging material with many other packaging materials, and the printing effect on the surface of aluminium foil is better than that of other materials, in addition to the following characteristics of aluminium foil:

(1) The surface of aluminium foil is extremely clean and hygienic, no bacteria or microorganisms can grow on its surface.
(2) Aluminium foil is a non-toxic packaging material, which can come into direct contact with food without any risk to human health.
(3) Aluminium foil is a tasteless and odourless packaging material and does not cause any odour to the packaged food.
(4) If the aluminium foil itself is not volatile, it will not dry out or shrink on itself or the packaged food.
(5) Aluminium foil will not be permeated by oil or grease at either high or low temperatures.
(6) Aluminium foil is an impermeable packaging material, so it is a good packaging material for products exposed to sunlight, such as margarine.
(7) Aluminium foil has good plasticity, so it can be used to package products of various shapes. It can also be used to make containers of various shapes.
(8) Aluminium foil has a high hardness and a high tensile strength, but its tearing strength is small, so it is very easy to tear.
(9) Aluminium foil itself cannot be heated and sealed, and it must be coated with heatable materials such as pe in order to be heat-sealed.
(10) Aluminium foil may have adverse reactions when it comes into contact with other heavy metals or heavy metals.