Light-sensitive lithographic printing plate having a light sensitive layer comprising a clathrate compound
US5677101A · kind A · utility
12Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1995 |
| Grant date | Oct 14, 1997 |
| Priority date | — |
| Expiry date | Jun 19, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/091
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a light-sensitive lithographic printing plate which comprises an aluminum plate having a surface subjected to roughening treatment and then anodization treatment and colored by a solution containing a UV absorber so that at an absorption local maximum wavelength between 340 and 450 nm, reflection optical density DS is higher by 0.02 to 0.5 than that obtained when the surface is not colored, and a positive light-sensitive composition layer containing an o-quinonediazide compound and a clathrate compound provided by coating on the aluminum plate after coloration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.