Heat sensitive printing plate precursors
US6497990B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2002 |
| Grant date | Dec 24, 2002 |
| Priority date | — |
| Expiry date | Jun 18, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41N3/034
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method of preparing a lithographic printing plate, said method comprising:providing a lithographic printing plate precursor comprising:i) a grained and anodized aluminum substrate where the anodic weight is between 6.0 and 20 g/m2, having coated thereon;ii) a metallic layer; andimage-wise exposing the precursor on an external drum thermal imaging device.The method provides press ready plates showing high image quality, good press properties and high durability on press without the requirement for the use of costly intermediate film and developer chemistry, and the attendant inconvenience resulting from the use of these materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.