Abstract: A method for anodizing and dyeing a metallic article including a first dipped end, a second dipped end opposite to the first dipped end, and a decorated surface located between the first dipped end and the second dipped end, 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, an immersion time of the decorated surface immersed in the electrolyte solution changes gradually from the first dipped end toward the second dipped end, and a depth of the plurality of holes of the anodization layer after the anodizing step thereby changes gradually from the first dipped end toward the second dipped end; and coloring the metallic article sealed in a dyeing treatment.

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.

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.

Abstract: A method for anodizing and dyeing a metallic article including a first dipped end, a second dipped end opposite to the first dipped end, and a decorated surface located between the first dipped end and the second dipped end, 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, an immersion time of the decorated surface immersed in the electrolyte solution changes gradually from the first dipped end toward the second dipped end, and a depth of the plurality of holes of the anodization layer after the anodizing step thereby changes gradually from the first dipped end toward the second dipped end; and coloring the metallic article sealed in a dyeing treatment.