In the modern food packaging industry, the choice of materials directly affects the preservation, hygiene and safety of food. 8021 aluminum foil has become an ideal choice for food soft packaging due to its excellent barrier properties, corrosion resistance and good ductility. It can not only effectively extend the shelf life of food, but also meet the food industry's demand for environmentally friendly, lightweight and efficient packaging.
Product introduction:
8021 aluminum foil belongs to the 8 series aluminum alloy, the main component of which is aluminum (Al), and a small amount of iron (Fe), silicon (Si) and other elements are added to give it excellent mechanical properties and chemical stability.
Specifications
Alloy: 8021
Temperature: O
Thickness: 0.04-0.065mm
Width: 300-1050mm
Length: 2000-4000mm
8021 aluminum foil chemical composition (%):
Alloy | Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Other:each | Otheer:total | Al |
8021 | 0.15- | 1.2-1.7 | 0.05 | - | - | - | - | - | 0.05 | 0.15 | remainder |
8021 food grade packaging aluminum foil main features include:
1.High barrier properties: can effectively block air, water vapor, light and odor, and prevent food oxidation and deterioration.
2.Good ductility and flexibility: suitable for various soft packaging forms, such as aluminum-plastic composite bags, aluminum foil sealing films, etc.
3.Corrosion resistance: not easily affected by food acid and alkali components, ensuring packaging integrity.
4.Non-toxic and tasteless, in line with food safety standards: in line with FDA (US Food and Drug Administration), EU standards and other international certification requirements.
8021 aluminum foil VS. other packaging materials:
Material | 8021 aluminum foil | Ordinary plastic packaging (PET/PE) | Paper packaging |
Barrier properties | Very high | Normal | Low |
Moisture resistance | Completely moisture-proof | Somewhat moisture-proof | Easily affected by moisture |
High temperature resistance | Can withstand high temperature baking | Easily deformed by heat | Not resistant to high temperature |
Environmentally friendly recyclability | Recyclable | Partially recyclable | Degradable but easily contaminated |
Compared with ordinary plastic and paper packaging, 8021 aluminum foil has stronger barrier properties, moisture resistance and temperature resistance, especially in the packaging of long-shelf-life foods, high-end foods and ready-to-eat foods.