Method for making corrections on planographic printing plates
US6427596B1 · kind B1 · utility
3Cited by
26References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1999 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Nov 16, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41N3/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for correcting mistakes and other imperfections in printing members is disclosed. Ink accepting areas of the printing member are rendered non-ink accepting by treatment with a deletion fluid. Deletion fluids include, for example, acids, alkalis, and oxidizing formulations. A preferred deletion fluid is concentrated sulfuric acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.