What is the classification of aluminum foil
Classification of aluminum foil
Depending on the difference in thickness, aluminum foil can be divided into thick foil, single zero foil and double zero foil.
1 thick film ("heavy gaugefoil"): a film with a thickness of 0.1 to 0.2 mm.
2 "Medium thickness film": a film with a thickness of 0.01 mm and less than 0.1 mm /.
3 "Light foil": The so-called double-zero foil is a foil with two zeros after the decimal point in the thickness, usually aluminum foil with a thickness of less than 0.01, ie 0.005 to 0.009 mm aluminum foil. In foreign countries, an aluminum foil with a thickness of ≤ 40 µm is sometimes referred to as a "light foil", and an aluminum foil with a thickness of> 40 µm is collectively referred to as a "heavy foil".
The aluminum foil can be divided into a rolled aluminum foil and an aluminum sheet foil according to the shape. Most of the deep-processing wool made from aluminum foil is supplied in rolls, and only a few hand-made industrial packaging uses foil-like aluminum foil.
Depending on its condition, aluminum foil can be divided into hard foil, semi-hard foil and soft foil.
1 Hard foil: aluminum foil that has not been softened (annealed) after rolling and has no residues on the surface without degreasing. Therefore, the rigid film must be degreased before printing, laminating and coating and can be used directly if it is used for forming.
2 semi-hard foil: hardness (or strength) of the aluminum foil between the hard foil and the soft foil that is normally used for forming.
3 soft foil: aluminum foil which is softened after annealing after annealing, the material is soft and no oil remains on the surface. Soft films are used in most applications, such as packaging, composites, and electrical materials.
Condition of the surface
The aluminum foil can be divided into a light aluminum foil and a double-sided aluminum foil depending on the surface condition.
1 Single-sided aluminum foil: Double-rolled aluminum foil, which is light after splitting and the surface is black. Such an aluminum foil is called a light aluminum foil. The thickness of one side of the aluminum foil does not normally exceed 0.025 mm.
2 double-sided light aluminum foil: Rolled-in aluminum foil, the two sides are touching the rollers, and the two sides of the aluminum foil are divided due to double-sided mirror foil and ordinary double-sided aluminum foil, the different surface roughness of the rollers. The thickness of the double-sided aluminum foil is generally not less than 0.01 mm.
Aluminum foil can be divided into normal foil, embossing foil, composite foil, coated foil, colored aluminum foil and printed aluminum foil, depending on the processing status.
1 Foil: aluminum foil without further processing after rolling, also called light foil.
2 embossed foil: aluminum foil with different patterns on the surface.
3 Composite Foil: A composite aluminum foil formed by laminating aluminum foil and paper, plastic film and cardboard.
4 coated foil: aluminum foil with different types of resin or lacquer on the surface.
5-color aluminum foil: The surface is coated with a single color aluminum foil. 6 Printing on aluminum foil: aluminum foil which is formed by printing various patterns, patterns, characters or images on the surface, which can be monochrome, up to 12 colors.
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