Method for anodizing and dyeing metallic article
US9458547B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 19, 2013 |
| Grant date | Oct 4, 2016 |
| Priority date | — |
| Expiry date | Jun 14, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D11/30
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.