Alkali soluble photopolymer in color proofing constructions
US5374501A · kind A · utility
17Cited by
31References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1992 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | Aug 17, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F3/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Most color proofing constructions use photooligomers that are tacky, require an oxygen barrier to protect the colorant layer and have a short shelf life. The use of alkali soluble photopolymers in the colorant layer of a color proofing construction provides a more easily processable proofing construction, eliminates the need for an oxygen barrier and has improved shelf life of the photopolymer. The proofing construction has a flexible support base film and a colorant layer coated thereon, wherein the colorant layer comprises a colorant and an alkali soluble photopolymer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.