High-speed color photographic recording material having increased sensitivity in the blue spectral region

US6040125A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Jorg Siegel · Leverkusen, DE
• Hans-Ulrich Borst · Elsdorf, DE
• Peter Bell · Neunburg vorm Wald, DE
• Ralf Buscher · Lohmar, DE
• Heinz Reif · Cologne, DE
• Jurgen Jung · Neunkirchen, DE

Key dates

• Filing date: Mar 13, 1998
• Grant date: Mar 21, 2000
• Expiry date: Mar 13, 2018

Classification

• Technology area (CPC G): Physics
• CPC primary: G03C5/02
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A color photographic recording material having at least one red-sensitive silver halide emulsion layer unit with which a cyan coupler is associated, at least one green-sensitive silver halide emulsion layer unit with which a magenta coupler is associated, at least one blue-sensitive silver halide emulsion layer unit with which a yellow coupler is associated, and optionally further light-insensitive layers, the blue-sensitive silver halide emulsion layer unit of which comprises at least two blue-sensitive partial layers which are sensitized with sensitizing dyes in such a way that a sensitivity curve ensues which is characterized by the following parameters: EQU 460 nm.ltoreq..lambda.(S.sub.max).ltoreq.480 nm EQU b.sub.80 .gtoreq.24 nm EQU b.sub.50 .gtoreq.91 nm, EQU b.sub.20 .gtoreq.106 nm, wherein PA1 .lambda.(S.sub.max) denotes the wavelength of the sensitivity maximum (100 % sensitivity); PA1 b.sub.80 denotes the width of the sensitivity curve at 80% of the maximum sensitivity; PA1 b.sub.50 denotes the width of the sensitivity curve at 50% of the maximum sensitivity; PA1 b.sub.20 denotes the width of the sensitivity curve at 20% of the maximum sensitivity, has an increased blue …