Pre-press light-sensitive color proofing article incorporating antihalation layer
US4950577A · kind A · utility
8Cited by
20References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 1985 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | May 23, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F3/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Presensitized sheets for color proofing comprising a removable carrier sheet bearing a photosensitive medium sensitive to radiation within the wavelength band 325 to 700 nm and comprising photohardenable, photoadherent, photoinsolubilisable or photosolubilisable material, the sheet including a removable antihalation layer which is removed either when stripping the carrier sheet or during subsequent processing. The antihalation dyes may be positioned within a transparent carrier sheet, in a layer on the carrier sheet opposite to the photosensitive medium or in a layer positioned between the carrier sheet and light-sensitive medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.