Silver halide light-sensitive photographic material forming a dye image of enhanced light fastness
US5049482A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1989 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Aug 29, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/39232
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide photographic light-sensitive material improved in fastness to light of the color image formed thereon. The photographic material comprises a support and a silver halide emulsion layer containing a dye-forming coupler, a compound represented by the following Formula I, and a compound represented by the following Formula II: ##STR1## wherein R.sub.1 and R.sub.2 each represents a straight or branched chain alkyl group having 1 to 4 carbon atoms or a straight of branched chain alkenyl group having 1 to 4 carbon atoms; R.sub.5 and R.sub.6 each represents a straight or branched chain alkyl group having 5 to 18 carbon atoms or a straight of branched chain alkenyl group having 5 to 18 carbon atoms; and R.sub.3, R.sub.4, R.sub.7 and R.sub.8 each represents a straight or branched chain alkyl group having 4 to 8 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.