Novak Druce Connolly Bove + Quigg LLP
Method for anodizing and dyeing metallic article
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.
Fu Tai Hua Industry (Shenzhen) Co., Ltd. HON HAI PRECISION INDUSTRY CO., LTD.
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Jia-Xiong Kai-Bo Li-Ming Zhi-Yong Wei-Chao
Wang Cao Shen Fan Li