Aluminum foil is a versatile and indispensable material with numerous practical applications in our daily lives. It is a thin, flexible sheet of aluminum metal that offers a wide range of benefits and uses. Here are some key points about aluminium foil.
Applications of aluminum foil
- Food container foil: Alloy: 8011, 3003, 3004, 8006. Thickness: 0.04-0.08 mm. Temper: O/H24.
- Lid foil: Alloy: 8011, 8079. Thickness: 0.016-0.05 mm. Temper: O.
- Household foil: Alloy: 8011, 3003. Thickness: 0.009-0.03 mm. Temper: O.
- Flexible packing foil: Alloy: 1235, 8011, 8079. Thickness: 0.0065-0.05 mm. Temper: O.
- Blister foil/Alu Alu foil: Alloy: 8011, 8021, 8079. Thickness: 0.02-0.03 mm, 0.035-0.08 mm. Temper: H18/O/H24.
- Wine Label foil: Alloy: 8011,8021, 8079. Thickness: 0.009-0.02 mm. Temper: O.
- Flexile duct foil: Alloy: 8011, 3003. Thickness: 0.05-0.12 mm. Temper: O.
- Capacitor foil: Alloy: 1070, 1060, 1100, 3003. Thickness: 0.02-0.055 mm. Temper: H18.
- Fin Stock foil: Alloy: 8011, 3003, 3102. Thickness: 0.105-0.2 mm. Temper: H16/H18/H14.
- Battery Soft pack foil: Alloy: 8021, 8079. Thickness: 0.018-0.055 mm. Temper: O/H24/H22.
- Honeycomb foil: Alloy: 3003. Thickness: 0.03-0.15 mm. Temper: H18.
Advantages of aluminum foil
Aluminum foil has a clean, hygienic and shiny appearance. The surface printing effect of aluminium foil is good. In addition, aluminium foil also has the following characteristics:
- The surface of aluminium foil is extremely clean and hygienic. No bacteria or microorganisms can grow on its surface.
- Aluminium foil is a non-toxic packaging material. It can come into direct contact with food without any risk to human health.
- Aluminium foil is a tasteless and odorless packaging material. It does not impart any odor to the packaged food.
- Aluminium foil has good plasticity. Hence, it serves packaging needs for products of diverse shapes, and users can easily fashion containers of their desired shapes.
- Aluminium foil has high hardness and high tensile strength. Its tear strength is low, so it is easy to tear.
Classifications of aluminum foil
Thickness
- Heavy gauge foil: The thickness of aluminium foil is 0.1~0.2mm.
- Medium gauge foil: Foil materials with thickness 0.01mm and below.
- Light gauge foil: it is a foil with two zeros after the decimal point when its thickness is measured in mm. It is usually an aluminium foil with a thickness of less than 0.01mm.
State
- Hard foil: Aluminium foil that has not been softened after rolling. If it is not degreased, there will be residues on the surface. Therefore, rigid foil must be degreased before printing, lamination, and coating.
- Semi-hard foil: Aluminium foil whose hardness is between hard foil and soft foil, usually used for forming processing.
- Soft foil: Aluminium foil that has been fully annealed and softened after rolling. The material is soft and there is no residual oil on the surface. Most application areas such as packaging, lamination, electrical materials, etc. use flexible foils.
Surface condition
- Single-sided smooth aluminium foil: Double-rolled aluminium foil. After being rolled, one side is bright and the other side is dark. The thickness of one side of plain aluminium foil usually does not exceed 0.025mm.
- Double-sided aluminium foil: a single rolled aluminium foil, with both sides in contact with the roller. The thickness of double-sided aluminium foil is generally not less than 0.01m.
Processing status
- Plain foil: Aluminium foil that has not undergone any other processing after rolling, also called light foil.
- Embossed foil: Aluminium foil with various patterns embossed on the surface.
- Composite foil: Composite aluminium foil formed by laminating aluminium foil with paper, plastic film, and cardboard.
- Coated Foil: Aluminium foil with various resins or lacquers coated on the surface.
- Colored Aluminium Foil: Aluminium foil with a single color painted on the surface.
- Printed aluminium foil: Aluminium foil that is printed on the surface to form various patterns, patterns, text or pictures. It can be one color or up to 12 colors.
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