What is the Aluminum Foil？
Aluminum foil is a hot stamping material that is directly calendered into thin sheets of metal aluminum. It is a soft metal film. It has an elegant silver-white luster, and is easy to process beautiful patterns and in various colors, so it is widely liked by people. Especially after aluminum foil is compounded with plastic and paper, the shielding property of aluminum 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, etc. And it is one of the most important and necessary materials for packaging. Since the packaged items are fully isolated from the light, moisture, and gas of the outside world, the packaged items are well protected.
What are the features of Aluminum Foil?
Aluminum 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 aluminum foil is better than other materials. In addition, aluminum foil has the following characteristics:
（1）The surface of aluminum foil is extremely clean and hygienic, and no bacteria or microorganisms can grow on its surface.
（2）Aluminum foil is a non-toxic packaging material that can be in direct contact with food without any danger to human health.
（3）Aluminum foil is a tasteless and odorless packaging material, which will not make the packaged food have any peculiar smell.
（4）If the aluminum foil itself is not volatile, it and the packaged food will never dry or shrink.
（5）Whether at high temperature or low temperature, aluminum foil will not have the phenomenon of grease penetration.
（6）Aluminum foil is an opaque packaging material, so it is a good packaging material for products exposed to sunlight, such as margarine.
（7）Aluminum foil has good plasticity, so it can be used to package products of various shapes. Containers of various shapes can also be made arbitrarily.
（8）Aluminum foil has high hardness and high tensile strength, but its tear strength is not good, so it is easy to tear.
（9）Aluminum foil itself cannot be heat-sealed, and it must be coated with a heat-resistant material, such as PE, to be heat-sealed.
（10）When aluminum foil comes into contact with other heavy metals or heavy metals, there may be adverse reactions.
Application of Aluminum foil
The appearance of aluminum foil bags brings great convenience to our life. With its good heat sealing performance, strong softness and good barrier performance, aluminum foil bags are used by many flexible packaging companies for product packaging in various industries.
In application for production, according to different industry packaging applications, the performance and function of aluminum foil bags are also different. For example, in the field of electronic product packaging, because aluminum foil bags need to be used to package some electronic components, precision instruments or other electronic products, aluminum foil bags mainly play the functions of anti-static, vacuumable, shielding, etc.;
In many fields of food packaging industry, the high barrier performance of aluminum foil bags can block oxygen, water, moisture and moisture, and aluminum foil bags are safe and environmentally friendly, non-toxic, harmless, and pollution-free. They are professional food-grade packaging materials;
In the field of medical supplies packaging industry, aluminum foil bags also play an important role. Using aluminum foil bags to avoid light, can withstand high temperature cooking and low temperature freezing can well protect the medical supplies in the package, and aluminum foil The bag is non-toxic and tasteless, and meets the hygienic standards for food and drug packaging;
In addition, the aluminum foil bag itself has advantages that other plastic packaging bags do not have. For example, the printing effect of the aluminum foil bag is good, the aluminum foil bag is protected from light, and the aluminum foil bag has a metallic luster, which improves the product packaging looking.
These excellent characteristics make aluminum foil bags play an important role in various packaging fields. In addition to the above-mentioned industries, aluminum foil bags are also used in many industrial and agricultural product packaging, daily cosmetic packaging and other packaging fields.
Of course, although aluminum foil bags have such a wide range of applications and are very popular in the market, in actual production applications, it is also crucial to determine the selection of materials and processes for the production of aluminum foil bags according to products in different industries.
