Water developable, photopolymer printing plates having ink-repulsive non-image areas
US4164422A · kind A · utility
10Cited by
16References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1977 |
| Grant date | Aug 14, 1979 |
| Priority date | — |
| Expiry date | Sep 19, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/0752
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Letterpress and offset photopolymer printing plates are disclosed having relatively thin water developable photopolymer layers, which, after being developed, have ink-repulsive, non-image areas. Adhesive layers are provided in the disclosed printing plates that are interposed between an ink-repulsive coating contained in the printing plate substrate and the water-developable photopolymer, and provide a balance between satisfactory adhesive and ink-repulsive properties in the resulting plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.