Color photographic silver halide material

US5599657A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Detlef Brennecke
• Johannes Willsau · Leverkusen, DE
• Ralf B uscher · Lohmar, DE
• Hans-Ulrich Borst · Elsdorf, DE
• Peter Bell · Neunburg vorm Wald, DE
• Lothar Endres · Bensberg, DE

Key dates

• Filing date: Oct 24, 1995
• Grant date: Feb 4, 1997
• Expiry date: Oct 24, 2015

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C2200/35
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A colour photographic silver halide material with a support, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler, at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one interlayer Z-1 beneath the lowermost red-sensitive silver halide emulsion layer and/or at least one interlayer Z-2 beneath the lowermost green-sensitive silver halide emulsion layer, in which Z-1 and/or Z-2 contains a silver halide emulsion which contains tabular grains with an aspect ratio of>2, an average diameter of a sphere of equal volume of.gtoreq.0.3 .mu.m and a diameter of a circle of equal projected surface area of the tabular grains of at least 0.3 .mu.m, is distinguished by improved red and/or green sensitivity.