Apparatus and method for imaging lithographic printing plates using spark discharges
US5237923A · kind A · utility
12Cited by
24References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1992 |
| Grant date | Aug 24, 1993 |
| Priority date | — |
| Expiry date | Feb 18, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41P2235/23
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Apparatus and method for imaging a lithographic plate having an oleophobic first layer, a metal second layer and an oleophilic third layer. The first and second layers are removed in an imagewise pattern to reveal the third layer, resulting in direct production of image spots. The plate is ready for printing at the conclusion of the imaging process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.