Method and substrate for the preparation of a printing plate
US6983693B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 28, 2003 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Jul 28, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41C1/1066
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for the preparation of a printing plate comprises forming an oleophilic image on a substrate for a printing plate comprising a support having at least one hydrophilic layer on its surface, the oleophilic image being formed by inkjet printing an aqueous solution or aqueous colloidal dispersion of an anionic oleophilising agent on the surface of the support and drying the applied solution or dispersion, such that, on drying, the area of the surface to which the solution or dispersion was applied becomes lithographic ink-accepting, characterised in that the hydrophilic layer comprises a crosslinked cationic polymer.The invention further relates to a substrate for a printing plate comprising a support having at least one hydrophilic layer on its surface wherein the hydrophilic layer comprises a crosslinked cationic polymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.