Food-grade aluminum foil is divided into different alloy types. The more commonly used ones are 1060 aluminum foil, 3003 aluminum foil, 8011 aluminum foil, etc. The aluminum foil packaging bags made are widely used in the packaging of cooked food, instant noodles and various snacks. In addition, food-grade aluminum foil can also be used as a variety of lunch boxes and containers, which is very popular in the food delivery industry, which is convenient, safe and hygienic.
Features of food grade aluminum foil:
1. It has the characteristics of waterproof, oil proof, light insulation and heat conduction.
2. The food in the container can be heated quickly and controlled.
3. The surface of the aluminum foil is smooth, without oil stains, inclusions, roll marks, etc.
What are the main properties of food aluminum foil:
1. Mechanical properties
The mechanical properties of aluminum foil mainly include tensile strength, elongation and crack strength, which are mainly determined by thickness. Generally speaking, aluminum foil is light in weight, good in ductility, thin in thickness and small in mass per unit area.
But low strength, easy to tear, easy to break when folded, resulting in perforation. Therefore, it is generally not used alone for packaging products. In many cases it is compounded with other plastic films and papers to overcome its shortcomings
2. High barrier property
Food-grade aluminum foil is highly resistant to water, steam, light and taste, and is not affected by the environment and temperature. Therefore, it is often used in fragrance packaging and moisture-proof packaging to prevent moisture absorption, oxidation, volatilization, and deterioration of products.
3. Corrosion resistance
An oxide film is naturally formed on the surface of aluminum foil. The formation of an oxide film further prevents oxidation. Therefore, when the PH value of the packaging is high, the surface is usually coated with a protective coating or PE to improve its corrosion resistance
4. Heat resistance and low temperature resistance
Aluminum foil is very stable at both high and low temperatures. The temperature is between -73°C and 371°C, without expansion or contraction. Good thermal conductivity, the thermal conductivity can reach 55%. Therefore, it can be used not only for high-temperature cooking or other heat treatment, but also for frozen packaging
5. Shadow
The aluminum foil has good shading properties, the reflectivity can reach 95%, and the appearance is silver-white metallic luster. Surface printing decoration can show a good packaging decoration effect, so aluminum foil is also a high-grade packaging material.
MC Aluminum specializes in the production of food-grade aluminum foil, which has the advantages of clean surface, no oil stains, bright lines and other inclusions, and high elongation. It is a supplier of food-grade aluminum foil raw materials at home and abroad. The product models are complete, can be customized according to customer needs, fast delivery, large output, exported to many overseas countries and regions, after-sales guarantee, customers can rest assured to order, looking forward to your message!