Aluminium foil rolling process comprising the steps of: a) providing at least one first aluminium foil and one second aluminium foil each having a respective first face (3, 4) and a respective second face (5, 6); b) lubricating, at least partially, at least one face between said first face (3, 4) and said second face (5, 6) of at least one aluminium foil between said first aluminium foil and said second aluminium foil, thereby obtaining at least one first lubricated face; c) coupling said first aluminium foil with said second aluminium foil, so that said at least one first lubricated face is a contact face between said first aluminium foil and said second aluminium foil, thereby obtaining a coupled foil having two outer faces; d) rolling said coupled foil with reduction of the thickness of said coupled foil; e) lubricating, at least partially, at least one face between said two outer faces of said coupled foil, thereby obtaining a coupled foil having at least one second lubricated face; f) winding at least partially said coupled foil having at least one second lubricated face, obtaining an at least partially wound coupled foil comprising n turns; g) partially separating said at least partially wound coupled foil by unwinding one of said first aluminium foil and said second aluminium foil, at least of one turn, thereby obtaining an at least partially wound coupled foil comprising an end portion constituted by a respective portion of only one of said first aluminium foil and said second aluminium foil; h) unwinding said at least partially wound coupled foil thereby obtaining a coupled foil wherein said second lubricated face is a contact face between said first aluminium foil and said second aluminium foil; i) rolling said coupled foil wherein said second lubricated face is a contact face between said first aluminium foil and said second aluminium foil thereby obtaining a coupled foil with reduced thickness; 1) separating said coupled foil with reduced thickness thereby obtaining a first aluminium foil with a first reduced thickness and a second aluminium foil with a second reduced thickness. a) providing at least one first aluminium foil and one second aluminium foil each having a respective first face (3, 4) and a respective second face (5, 6); b) lubricating, at least partially, at least one face between said first face (3, 4) and said second face (5, 6) of at least one aluminium foil between said first aluminium foil and said second aluminium foil, thereby obtaining at least one first lubricated face; c) coupling said first aluminium foil with said second aluminium foil, so that said at least one first lubricated face is a contact face between said first aluminium foil and said second aluminium foil, thereby obtaining a coupled foil having two outer faces; d) rolling said coupled foil with reduction of the thickness of said coupled foil; e) lubricating, at least partially, at least one face between said two outer faces of said coupled foil, thereby obtaining a coupled foil having at least one second lubricated face; f) winding at least partially said coupled foil having at least one second lubricated face, obtaining an at least partially wound coupled foil comprising n turns; g) partially separating said at least partially wound coupled foil by unwinding one of said first aluminium foil and said second aluminium foil, at least of one turn, thereby obtaining an at least partially wound coupled foil comprising an end portion constituted by a respective portion of only one of said first aluminium foil and said second aluminium foil; h) unwinding said at least partially wound coupled foil thereby obtaining a coupled foil wherein said second lubricated face is a contact face between said first aluminium foil and said second aluminium foil; i) rolling said coupled foil wherein said second lubricated face is a contact face between said first aluminium foil and said second aluminium foil thereby obtaining a coupled foil with reduced thickness; 1) separating said coupled foil with reduced thickness thereby obtaining a first aluminium foil with a first reduced thickness and a second aluminium foil with a second reduced thickness.