Chemical imaging of a lithographic printing plate
US6523471B2 · kind B2 · utility
1Cited by
72References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2001 |
| Grant date | Feb 25, 2003 |
| Priority date | — |
| Expiry date | Aug 29, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24802
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A process for imaging a lithographic printing plate having a coating containing diazo resins. An ink jet printer is used to apply micro drops of a basic chemical solution that insolubilizes the affected areas of the coating to a developing solution. The latent image may be cured by heating the plate for a short period, and is then developed. The process works with conventional, commercially available lithographic plates and developers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.