Method for making positive working printing plates from a lithographic base comprising a flexible support having a hardened hydrophilic substrate
US6033740A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 16, 1998 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Dec 16, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41C1/1066
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
According to the present invention there is provided a method for making lithographic printing plates including the steps of dispensing in a predetermined pattern curable hydrophobic ink from a printhead of a printer onto a lithographic base or polymerizable ink from a printhead of a printer onto a lithographic base which is coated with a polymerization initiator by spraying droplets of the ink onto the lithographic base in the predetermined pattern and curing the sprayed droplets of the ink upon the lithographic base, characterized in that the lithographic base comprises a flexible support having a cross-linked hydrophilic surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.