Aluminum substrates useful for lithographic printing plates
US4477317A · kind A · utility
14Cited by
15References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1983 |
| Grant date | Oct 16, 1984 |
| Priority date | — |
| Expiry date | Oct 31, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41N3/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for the production of aluminum substrates useful in the production of lithographic printing plates which comprises first mechanically graining at least one surface of an aluminum sheet to obtain a pumice grained surface of the aluminum sheet, and then electrolytically etching said grained surface with alternating current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.