Process for dyeing zinc and zinc alloys

Details Process for dyeing zinc and zinc alloys Process for dyeing zinc and zinc alloys

C - Chemistry, Metallurgy

23

C

148/14

C23C 22/84 (2006.01) B05D 5/06 (2006.01)

Patent

CA 1121699

ABSTRACT OF THE DISCLOSURE A multi-colored decorative zinc or zinc alloy having locally organic dyestuff-dyed portions in multi- color is prepared by (1) dyeing with a dyestuff zinc or zinc alloy having a dyeable chromate film bonded there- onto, (2) polishing locally the dyed surface of zinc or zinc alloy, (3) making the chromate film on the exposed surface, (4) dyeing with another dyestuff having a different color the chromate film on the exposed surface, and then the steps (2), (3) and (4) may successively be repeated.

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