Plasma-jet imaging method
US5062364A · kind A · utility
50Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1990 |
| Grant date | Nov 5, 1991 |
| Priority date | — |
| Expiry date | Jul 17, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41C1/1033
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of imaging a lithographic plate having a printing surface comprises exposing the printing surface to plasma jet discharges between the plate and a plasma jet nozzle spaced close to the printing surface of the plate. These plasma jet discharges are sufficient to remove a layer or layers of the plate to thereby change the affinity of the printing surface for ink and/or water at the points thereof exposed to the discharges, thereby producing image spots on the plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.