Shallow relief non-bottoming photopolymer printing plate
US4289071A · kind A · utility
8Cited by
16References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1979 |
| Grant date | Sep 15, 1981 |
| Priority date | — |
| Expiry date | Sep 12, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/115
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A shallow relief non-bottoming printing plate is disclosed having a polymerized layer of less than about 0.020 inch and which includes a plurality of dispersed particles sufficient to create small protuberances in non-image or background areas to prevent bottoming. Photopolymerizable elements, as well as processing techniques, are also disclosed for making such printing plates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.