Electrochemically roughening aluminum metal sheet
US5395489A · kind A · utility
1Cited by
6References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 21, 1994 |
| Grant date | Mar 7, 1995 |
| Priority date | — |
| Expiry date | Jan 21, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41N3/034
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of electrochemically roughening an aluminum metal sheet for use as a lithographic plate support comprises subjecting the sheet in an electrolyte to an alternating current treatment. Treatment is performed in the presence of at least one added component, present in the sheet or in the electrolyte, selected from Hg, Ga, In, Sn, Bi, Tl, Cd, Pb, Zn and Sb. The added component accelerates the electrograining, so that only 35-75 kCoulombs per square meter of electricity is required.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.