A rèir an cruth, faodar foil alùmanum a roinn ann am foil alùmanum rolla agus foil alùmanum duilleag. Tha a’ mhòr-chuid de na stuthan clòimhe giullachd domhainn foil alùmanum air an toirt seachad ann an rolagan, and sheet aluminum foil is only used on a few handicraft packaging occasions.
According to the state, faodar foil alùmanum a roinn ann am foil cruaidh, foil leth-chruaidh, and soft foil.
①Hard foil: The aluminum foil that has not been softened (Gabh ris) after rolling, without degreasing treatment, has residues on the surface. Uime sin, feumaidh am foil cruaidh a bhith air a dhì-ghalarachadh mus tèid a chlò-bhualadh, lannachadh, and coating, and it can be used directly if it is used for forming.
②Semi-hard foil: Aluminum foil whose hardness (or strength) is between hard foil and soft foil, usually used for forming.
③Soft foil: Aluminum foil that has been fully annealed and softened after rolling. Tha an stuth bog agus chan eil ola air fhàgail air an uachdar. Most of the current application areas, such as packaging, lannachadh, electrical materials, etc., use soft foils.