Planographic thermal imaging member and methods of use
US6458507B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 20, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Mar 20, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thermally sensitive imaging member can be imaged using thermal energy such as from an IR-emitting laser and then used for lithographic printing. The imaging member includes a support having an ink-repellant subbing layer and a thermally sensitive, ink-repellant surface imaging layer. Imaging causes a “switching” in the exposed surface regions to a more oleophilic or ink-accepting nature. Post-imaging processing is unnecessary in this imaging system. The surface imaging layer includes a thermally sensitive copolymer of silicone “soft” segments and thermally sensitive “hard” segments as well as a photothermal conversion material that is IR radiation sensitive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.