Method of forming a multicolored design on aluminum and the article so formed

Claim 1

AN ARTICLE OF MANUFACTURE COMPRISING: (A) AN ANODIZED ALUMINUM METAL SHEET, (1) ONE SURFACE OF SAID SHEET HAVING FORMED THEREON AN OXIDE LAYER RECEPTIVE TO COLORING AGENTS, (2) SAID OXIDE LAYER BEING CHARACTERIZED BY HAVING MICROSCOPIC IRREGULARITIES IN THE OUTER SURFACE THEREOF, AND (B) A THIN FILM COATING A PRE-WET SUBSTANCE DISPOSED ON SAID OXIDE LAYER IRREGULAR SURFACE, (1) SAID PRE-WET SUBSTANCE BEING PERMEABLE TO SAID COLORING AGENTS, INCREASING THE EFFECTIVE WETNESS OF SAID OXIDE LAYER TO SAID COLORING AGENTS AND (2) HAVING A SUFFICIENTLY HIGH DEGEE OF INTIMACY OF CONTACT WITH SAID OXIDE LAYER TO FLOW INTO AND SUBSTANTIALLY FILL THE INTERSTICES OF SAID IRREGULAR OUTER SURFACE, (3) SIAD FILM COATING PRESENTING A RELATIVELY SMOOTH OUTER CONTACT SURFACE TO COLORING AGENTS ADAPTED TO BE DISPOSED THEREON, SAID CONTACT SURFACE BEING IN SPACED RELATIONSHIP TO SAID IRREGULAR OUTER SURFACE, (C) A PROTECTIVE COVERING LAYER DISPOSED ON SAID FILM COATING, SAID COVERING LAYER BEING SUBSTANTIALLY IMPERMEABLE TO ATMOSPHERIC MOISTURE AND DELETERIOUS MATERIALS, AND BEING READILY REMOVABLE FROM SAID FILM COATING.