Air etching of polymeric printing plates
US4145790A · kind A · utility
5Cited by
10References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1977 |
| Grant date | Mar 27, 1979 |
| Priority date | — |
| Expiry date | Jun 1, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/0275
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus for developing a relief letterpress plate carrying a liquid polymer, comprising an air knife positioned to move over a stationary platen carrying the plate and blowing the polymer from the plate into a sink. Alternately the air knife is stationary and the platen is positioned to move under it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.