Process for producing lithographic printing plate, photosensitive plate and aqueous ink composition therefor
US5609993A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1994 |
| Grant date | Mar 11, 1997 |
| Priority date | — |
| Expiry date | Oct 5, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/162
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides an improvement of the direct lithographic printing plate making process using ink-jet printing, which provides a printing plate having excellent resolution. Accordingly, the present invention provides an improvement of a process for producing a lithographic printing plate comprising selectively forming a light transmittable oxygen barrier film on a photopolymerizable layer of a photosensitive plate, exposing to light and then removing uncured portion on which the oxygen barrier film is not covered, wherein a protective layer which is capable of transmitting oxygen gas and the light to cure the photopolymerizable layer is formed on the photopolymerizable layer, a photosensitive plate therefor and an aqueous ink composition therefor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.