Lithographic printing plates
US4567131A · kind A · utility
24Cited by
11References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 11, 1984 |
| Grant date | Jan 28, 1986 |
| Priority date | — |
| Expiry date | Jul 11, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/063
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lithographic printing plate having metallic silver image areas is treated with a proteolytic enzyme and an oleophilizing compound to improve ink receptivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.