Silver halide color reversal light-sensitive material
US4720451A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1985 |
| Grant date | Jan 19, 1988 |
| Priority date | — |
| Expiry date | Sep 18, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/39208
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide color reversal light-sensitive material comprising a support having thereon at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer and at least one blue-sensitive emulsion layer, at least one layer of said light-sensitive material comprising (1) an emulsion containing tabular silver halide grains having a diameter/thickness ratio of at least of about 4 and (2) at least one compound represented by the following general formulae (I) to (IV), said tabular silver halide grains being present in amount of at least about 50% of the total projected area of silver halide grains present in the same layer: ##STR1## wherein M.sub.1 represents a hydrogen atom, a cation or a group cleavable in alkaline conditions, and Z represents an atomic group as defined in the specification; ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be the same or different, each represents an alkyl group, an aryl group or an aralkyl group as defined in the specification, X.sup..crclbar. represents an anion, and n is 1 or is 0 when the compound forms an inner salt; ##STR3## wherein R.sub.5 represents a substituted or unsubstituted alkyl group, a substitu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.