Method of printing an image on a metallic surface, particularly on a coin surface
US7700158B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 2004 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Aug 9, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12243
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of printing on a metal surface includes steps of forming a plurality of macropores on at least a portion of a metal surface. A plurality of micropores are formed within and adjacent to the macropores. The metal surface is cleaned, and a first ink having a first color is applied to the macropores and micropores to form at least one image on the metal surface. Preferably, the ink is applied using an inkjet printer. The ink is dried. A second ink having a second color may also be applied to the metal surface and then dried. Additional inks may also be applied. A lacquer top coat may be applied to the metal surface on top of the first ink (and additional inks, if provided). Preferably, the metal surface is part of a coin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.