Classification and shape of aluminum foil

Aluminum foil can be divided into thick foil, single zero foil and double zero foil according to the thickness difference.
① Thick foil: thickness of 0.1 ~ 0.2mm foil.
② Single zero foil: thickness of 0.01mm and less than 0.1mm/ foil.
③ Double zero foil: the so-called double zero foil is the foil with two zero after the decimal point when its thickness is mm as the unit of measurement, usually the thickness is less than 0.01 aluminum foil, that is, 0.005~0.009mm aluminum foil. In foreign countries, aluminum foil with thickness ≤40ltm is sometimes called "light gauge foil", while aluminum foil with thickness >40btm is collectively called "heavy gauge foil".
shape
Aluminum foil according to shape can be divided into roll aluminum foil and sheet aluminum foil. Aluminum foil deep processing wool is mostly in roll form supply, only a few handicraft packaging occasions use sheet aluminum foil.
Aluminum foil according to the state can be divided into hard foil, semi-hard foil and soft foil.
① Hard foil: after rolling without softening treatment (annealing) of aluminum foil, without degreasing treatment, the surface of the residue. So hard foil must be degreased before printing, laminating, coating, if used for forming processing can be used directly.
(2) semi-hard foil: aluminum foil hardness (or strength) between hard foil and soft foil, usually used for forming processing.
③ Soft foil: rolled after full annealing and soft aluminum foil, soft material, no residual oil on the surface. Soft foils are used in most applications, such as packaging, composite, electrical materials, etc.