Intaglio printing machine for the printing of currency papers
US5062359A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 3, 1990 |
| Grant date | Nov 5, 1991 |
| Priority date | — |
| Expiry date | May 3, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41F11/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The intaglio printing machine comprises a plate cylinder (4) with a plurality of engraved printing plates equipped with intaglio cuts representing the elements of a main design and with less deep and finer intaglio cuts representing the elements of a safety background, an impression cylinder (3), a wiping device (10) and a multicolor inking system. This inking system consists of a collector inking cylinder (5) having an elastic surface interacting with the engraved plates mounted on the plate cylinder (4) and having the same diameter as this. The collector inking cylinder (5) is inked by as many selective color inking cylinders (7) as there are colors to be printed, these selective color inking cylinders (7) having reliefs corresponding to the colored zones of the safety background and of the main design, an inking device (8) being associated with each selective color inking cylinder (7). If appropriate, the diameter of the collector inking cylinder can also be double or triple the diameter of the plate cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.