Offset lithographic plate
US5304443A · kind A · utility
8Cited by
8References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1992 |
| Grant date | Apr 19, 1994 |
| Priority date | — |
| Expiry date | Aug 24, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G13/28
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A lithographic plate blank for imaging on a laser printer comprises a sheet of flexible electrically non-conductive material and an image receiving etchable layer coating bonded on a surface thereof, the coating including zinc oxide, a resin binder, and an electrical property regulating agent and being effective to provide the plate with a surface resistance of between 10.sup.11 and 10.sup.14 ohms per square and a dark decay rate of at least 15 volts per second. A method of preparation of a blank plate and a method of preparation of an imaged plate are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.