Process for making lithographic printing plates
US4501811A · kind A · utility
28Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1983 |
| Grant date | Feb 26, 1985 |
| Priority date | — |
| Expiry date | Oct 13, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a process for making a lithographic printing plate by utilizing the silver complex diffusion transfer process and using a neon-helium laser or an LED which comprises imagewise exposing to the radiation a photosensitive element including an emulsion layer which is spectrally sensitized with an anion- or betaine-type meso-substituted trimethine cyanine dye having at least one .beta.-naphthothiazole nucleus and developing the element by the silver complex diffusion transfer process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.