Introduction of Aluminum Foil Applications:

It is widely used in industries such as automobiles, communications, electronics, electrical appliances, medicine, packaging, printing, construction, air - conditioning, heat exchangers, and aviation.

1.  Thickness

Aluminum foil can be divided into thick foil, single - zero foil, and double - zero foil according to thickness differences.

① Thick foil: Foil with a thickness of 0.1 - 0.2mm.

② Single - zero foil: Foil with a thickness of 0.01mm and less than 0.1mm.

③ Double - zero foil: The so - called double - zero foil is the foil with two zeros after the decimal point when its thickness is measured in mm. Usually, it is aluminum foil with a thickness less than 0.01mm, that is, aluminum foil with a thickness of 0.005 - 0.009mm.

2.  Shape

Aluminum foil can be divided into rolled aluminum foil and sheet - like aluminum foil according to shape.  Most of the deep - processed aluminum foil materials are supplied in rolls, and only in a few handicraft packaging situations are sheet - like aluminum foil used.

Aluminum foil can be divided into hard foil, semi - hard foil, and soft foil according to state.

① Hard foil: Aluminum foil that has not been softened (annealed) after rolling.  When not degreased, there is residual oil on the surface.  Therefore, hard foil must be degreased before printing, laminating, and coating.  If it is used for forming processing, it can be used directly.

② Semi - hard foil: Aluminum foil with hardness (or strength) between hard foil and soft foil, usually used for forming processing.

③ Soft foil: Aluminum foil that has become soft after full annealing after rolling.  The material is soft and there is no residual oil on the surface.  At present, most application fields, such as packaging, composite, and electrical materials, use soft foil.