Color photographic recording material having elevated sensitivity and improved color reproduction

US5856076A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Joerg Siegel · Leverkusen, DE
• Hans-Ulrich Borst · Elsdorf, DE
• Peter Bell · Neunburg vorm Wald, DE
• Ralf Buscher · Lohmar, DE
• Johannes Willsau · Leverkusen, DE

Key dates

• Filing date: Apr 29, 1997
• Grant date: Jan 5, 1999
• Expiry date: Apr 29, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C7/3041
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A color photographic recording material having a film support and, arranged thereon, at least one red-sensitive silver halide emulsion layer containing a cyan coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, at least one blue-sensitive silver halide emulsion layer containing a yellow coupler and optionally further non-photosensitive layers contains, in addition to conventional sensitizing dyes, in at least one of the red-sensitive silver halide emulsion layers thereof and in at least one of the green-sensitive emulsion layers thereof at least one cyanine dye in each layer having an absorption maximum in a methanolic solution in the range from 515 to 550 nm, wherein the absorption maxima of the additional cyanine dye in the red-sensitive silver halide emulsion layer and of the additional cyanine dye in the green-sensitive layer, in each case measured in a methanolic solution, are no more than 10 nm and preferably no more than 5 nm apart. In a preferred embodiment, the additional cyanine dye in the red-sensitive silver halide emulsion layer is identical to the additional cyanine dye in the green-sensitive silver halide emulsion layer. T…