Printing plate and process for preparing the same
US5589307A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 26, 1995 |
| Grant date | Dec 31, 1996 |
| Priority date | — |
| Expiry date | May 26, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G17/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a process for preparing a printing plate, comprising the steps of: providing an N-type photoconductor layer having an optical memory property on the surface of a substrate having an electrical conductivity at least in its surface to form an N-type photoconductor substrate; subjecting the N-type photoconductor layer to a desired pattern-wise exposure by batch exposure and/or photo-drawing exposure to render exposed areas electrically conductive; immersing the N-type photoconductor substrate in an electrodeposition bath to electrodeposit an ionic organic polymer contained in the electrodeposition bath to form an electrodeposit layer; and washing and drying the electrodeposited substrate to prepare a printing plate. Further, the present invention provides a process for preparing a printing plate, comprising the steps of: subjecting an N-type photoconductor layer provided on an N-type photoconductor substrate to a desired pattern exposure by batch exposure and/or photo-drawing exposure to render exposed areas electrically conductive; electrodepositing an ink-receptive component on the exposed areas; and transferring the ink-receptive component onto a subs…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.