A process for producing colour variations on...

Details A process for producing colour variations on... A process for producing colour variations on...

C - Chemistry, Metallurgy

25

D

C25D 11/14 (2006.01) C25D 11/22 (2006.01) C25D 11/24 (2006.01)

Patent

CA 2258370

A process for producing a coloured article of anodized aluminium or aluminium alloy, wherein an anodized aluminium or aluminium alloy article (A), which is electrolytically pigmented with a metallic pigment (B) within the anodically produced oxide layer, is treated with a solution (C) comprising metal cations of a species other than that of said metallic pigment (B), until a perceivable colour conversion has taken place, and sealed.

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