Method for anodizing and dyeing metallic article
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United States of America Patent
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May 31, 2016
Grant Date -
Sep 26, 2013
app pub date -
Mar 12, 2013
filing date -
Mar 22, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A method for anodizing and dyeing a metallic article including a decorated surface to be dyed, includes steps as follows: anodizing the metallic article to form an anodization layer on the decorated surface by an anodizing treatment, in which the anodization layer is porous with a number of holes; sealing the anodization layer of the metallic article anodized by a first sealing treatment in a first sealing solution, in which a contacting time of the anodization layer and the first sealing solution changes gradually along a predetermined direction, and thereby a depth of the holes of the anodization layer after sealing changes gradually along the predetermined direction; and coloring the metallic article sealed in a dyeing treatment.
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