Method for obtaining litographic printing plates by electrophotographic imaging
US5213920A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1991 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | Nov 26, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G13/283
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present disclosure relates to an electrophotographic method of obtaining a lithographic printing plate comprising the step of transferring a toner image from a toner image bearing member to a toner receiving plate, said toner receiving plate comprising a thermoplastic film support and a crosslinked hydrophilic layer thereon, characterized in that said crosslinked hydrophilic layer either carries on top thereof or incorporates spacing particles forming protuberances on said layer. According to a preferred embodiment, the average particle diameter by volume of the spacing particles is at least twice the average particle diameter by volume of the electrophotographic toner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.