PROCESS FOR ELECTROCHEMICALLY DEPOSITING MULTI-COLORED LAYERS ON ALUMINUM PICTURE FRAMES USING AN ANODIZING TECHNIQUE

摘要

A method of producing an aluminum picture frame having two regions of different colors is disclosed. According to a preferred embodiment, aluminum frame stock is coated with a colored maskant or paint. Selective regions of the coated frame stock are abraded thereby exposing bare aluminum in these selective regions. The abraded frame stock is then anodized. In a third embodiment, the aluminum frame stock is first etched, anodized (50) and dyed a first color (52). Selective areas of the frame stock are then protected using an etch-resistant mask (54). The colored, masked frame stock is then etched (56) so that the unmasked regions become stripped of the first color, thereby exposing the aluminum surface. The frame stock is then anodized (58) again and dyed a second color (60) so that the unmasked regions absorb the second color. The mask is then chemically removed (62), thereby exposing the underlying first color located adjacent the second color.