Electrophotographic lithographic printing plate precursor and edge face treatment
US5219687A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1991 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Nov 26, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G13/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In an electrophotographic lithographic printing plate precursor comprising a photoconductive layer on an electrically conductive support having a hydrophilic surface thereon which is subjected to a process which comprises formation of a toner image on said photootoconductive layer, and then removal of said photoconductive layer from nonimage portions other than said toner image portion to form a lithographic printing plate, an electrophotographic lithographic printing plate precursor treated with a water-soluble or water-dispersible solid material (edge face treatment) at the edge face thereof and a water-soluble or water-dispersible solid adge face treatment therefor. In a preferred embodiment, the edge face treatmetment is a water-soluble or water-dispersible solid drawing material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.