Planographic printing plate
US6638686B2 · kind B2 · utility
10Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2000 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Dec 7, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A planographic printing plate precursor comprising:an aluminum substrate which has been subjected to a roughening treatment and an anodizing treatment; and a photosensitive layer which provided on a surface of said substrate, and which contains an infrared absorbing agent and a water-insoluble and alkali aqueous solution-soluble polymer compound, and whose solubility in an alkali developing solution varies by infrared laser exposure, wherein said substrate is obtained by electrochemically roughening an aluminum alloy plate which contains a trace amount of certain elements to an aluminum alloy of high purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.