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1235 8079 Flexible Packaging Aluminium Foil

Publish: Modify: Jul 22, 2022Author: From:  Haomei

1235 and 8079 are two popular flexible packaging aluminium foils. Its shelf life is about five times longer than that of plastic bags of the same thickness. How about their market and manufacturing features? Learn more.

For aluminum and aluminum alloys,when the thickness is equal to or less than 0.20mm, whether in rolls or sheets, it is called aluminum foil. The thickness of rolled aluminum foil is generally 0.004-0.20 mm.It is easy to emboss, color, coat and print, and can also be compounded with paper or plastic to form a composite aluminum foil.

In addition, aluminum foil has light weight, good moisture resistance, heat insulation and other properties, so it has a wide range of applications in the national economy, such as flexible packaging aluminium foil, cigarette foil, pharmaceutical foil, beer foil, capacitor foil, lithium-ion battery foil, etc.

 flexible packaging aluminum foil.jpg

With the improvement of people's living standards and the acceleration of the pace of life, the way of food supply has changed, and there are more and more convenience foods with long shelf life. The demand for flexible packaging aluminum foil is growing rapidly as its shelf life is about five times longer than that of plastic bags of the same thickness.

Compared to other metal and paper alternatives, food aluminum foil is lightweight and forms a strong barrier against light, dirt, bacteria and moisture. These properties make it an important material for the safe packaging of aseptically packaged food, beverages and other products that require preservation of freshness, flavor and nutritional value during shipping and storage.

8079 and 1235 aluminum foil are widely used in flexible packaging. 8079 aluminum foil is widely used in food and drug packaging, electronic and electrical packaging and household daily necessities. 1235 aluminum foil is mainly for flexible packaging and battery.

At present, 1235 foil is generally used in the production of 6~7μm light gauge foil in Asia while 8079 alloy is generally used by European and American manufacturers. Compared with AA1235 alloy, 8089 aluminumhas higher Fe and Si content, and has higher mechanical properties when used to produce aluminum foil blanks.When rolling, a higher rolling speed can be used without breaking the strip, and the production efficiency of 8079 aluminum foil can be improved.

The the Fe/Si ratio of 1235 aluminium foil packaging for food is between 2.5 and 4.0, but increasing the content of Fe and Si is conducive to refining grains, improving surface quality, and improving rolling performance. The compounds in the aluminum foil blank are mainly α (FeSiAl), β (FeSiAl), and FeAl3 phases. Among them, α(FeSiAl) is an ideal as-cast compound.

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