Aluminum foil is commonly used in the field of food packaging. It is a soft metal film with the advantages of moisture-proof and corrosion-resistant, airtight and light-shielding, fragrance-preserving, non-toxic and tasteless, and can keep food fresh for a long time. Packaging butter with aluminum foil can extend the shelf life of butter by 2-3 months compared with tin foil. The thickness of aluminum foil in general food packaging bags is only 6.5μm (micrometers). The thin aluminum layer has the functions of waterproofing, maintaining the freshness of food, anti-bacteria and anti-external pollution, so it is favored by food packagers.
Aluminum foil for packaging bags includes 1 series, 3 series and 8 series products, mainly including models 1060, 1100, 3003, 8011, 8021, etc. The hardness of the alloy, that is, the alloy state, is selected according to the needs of the packaged food. The commonly used states are H14, H16 and H18.
Generally, the thickness of aluminum for packaging bags is between 0.03mm-0.1mm. There are the following advantages of using aluminum foil packaging bags to package food. Let's learn about them together.
1. The surface of aluminum foil is clean and hygienic, which can effectively prevent the growth of bacteria or microorganisms.
2. Aluminum foil is a non-toxic and odorless material. It can be in direct contact with food without any harm to human health, and it will not make the food have any peculiar smell.
3. If the aluminum foil packaging bag can effectively block the influence of external light and air, it can ensure that the food will not dry, shrink, or have grease penetration.
4. Aluminum foil has good plasticity, so it can be used to package products of various shapes, and it can also be made into containers of various shapes at will.
What should I pay attention to when using aluminum foil packaging bags?
Because aluminum foil has high hardness and high tensile strength, but its tear strength is low, it is very easy to tear, so be careful when using it. In addition, aluminum foil itself cannot be heated and sealed, and heatable materials such as PE must be applied to its surface to heat seal it. An important point is that aluminum foil may have adverse reactions when it comes into contact with other heavy metals or heavy metals, so it is especially important to pay attention when it is used to package food.
Mingtai Aluminum Foil Products: Mingtai Aluminum is a large-scale aluminum foil raw material manufacturer for tinfoil bags. The 1060, 1100, 3003, 8011, and 8021 aluminum foils for packaging bags are cleanly degreased, have few holes, have good product shape, and are not deformed when cut. Henan Mingtai is a listed aluminum foil manufacturer in China. It can accept orders for 3-2000 tons of aluminum foil raw materials. The product quality is stable, exported globally, and the price is affordable. You can rest assured to purchase!