Heat mode recording material and method for producing driographic printing plates
US5378580A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 11, 1993 |
| Grant date | Jan 3, 1995 |
| Priority date | — |
| Expiry date | May 11, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method for making a lithographic printing plate requiring no dampening liquid comprising the steps of: PA1 image-wise exposing using a laser beam a heat mode recording material comprising on a support having an oleophilic surface (i) a recording layer having a thickness of not more than 3 .mu.m and containing a substance capable of converting the laser beam radiation into heat and (ii) a cured oleophobic surface layer and wherein said recording layer and oleophobic surface layer may be the same layer; PA1 rubbing the exposed heat mode recording material thereby removing said oleophobic surface layer in the exposed areas so that the underlying oleophilic surface is exposed and PA1 avoiding the swelling of said oleophobic surface layer by carrying out said rubbing without the use of a liquid or with the use of a non-solvent for said oleophobic surface layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.