Agfa-gevaert Ag

Agfa Gevaert Nv

Agfa-gevaert

Agfa Nv

Agfa Corporation

Michael Missfeldt

Cuong Ly

Edgar Draber

Stefan Herrmann

Heinz-Horst Teitscheid

Hans-Ulrich Borst

Markus Geiger

Ralf Weimann

Klaus Sinzger

Maria Nietgen

Peter Bergthaller

Wolfgang Schmidt

Peter Bell

Arno Schmuck

Ralf Buscher

Bruno Mucke

Johannes Willsau

G&uuml;nter Helling

Heinz Wiesen

Jorg Siegel

Thomas Kaluschke

Matthias Feigl

Color photographic silver halide material

Cyanine dye

The present application provides cyanine dyes of the formula (1)

Cyanine dyes

The present application provides cyanine dyes of the formula (I)

A colour photographic silver halide material in which at least one of the blue-sensitive silver halide emulsions is spectrally sensitised with a mixture of at least one seansitising dye of the formula (I) and at least one sensitising dye of the formula (II):

A color photographic silver halide material in which at least one of the blue-sensitive silver halide emulsions is doped with mercury and is spectrally sensitised with a sensitising dye of formula (I) ##STR1## wherein X.sub.1 and X.sub.2, independently of each other, denote O, S, Se, NR,

A color photographic recording material contains at least one photosensitive silver halide emulsion layer which is spectrally sensitized with a monomethine cyanine dye of the formula I ##STR1## in which: R.sup.1 denotes a benzothiophene radical which is coupled by way of the 2-, 3-, 4-, 5-, 6- or 7-position thereof to the benzo ring of the benzothiazole group,

Color photographic recording material

A color photographic silver halide material, at least 95 mol. % of the silver halides of which consist of silver chloride, the blue-sensitive layer of which is spectrally sensitised with a dye of the formula I, ##STR1## in which R.sub.1 means 2-thienyl or 3-thienyl and

A color photographic recording material contains at least one photosensitive silver halide emulsion layer which is spectrally sensitized with a monomethine cyanine dye of the formula I in which:

A color photographic recording material having at least one light-sensitive silver halide emulsion layer, the silver halide emulsion whereof is spectrally sensitized with a cyanine dye of the formula I, exhibits increased sensitivity, ##STR1## R.sup.1, R.sup.2, R.sup.3, R.sup.6 to R.sup.9 are H, halogen, alkyl, methoxy, aryl, 1-pyrrolyl, 2-pyrrolyl, 3-pyrrolyl, 2-furanyl, 3-furanyl, 2-thienyl, 3-thienyl, 1-indolyl, 2-isoindolyl or N-carbazolyl; or R.sup.7 together with R.sup.6 or R.sup.8 denote the group required to complete an optionally substituted fused benzene ring or napthylene ring system;

Colour photographic material

A color photographic recording material contains at least one silver halide emulsion layer which is spectrally sensitized with a monomethinecyanine dye of the following general formula I in which

A colour photographic silver halide material having a support and at least one silver halide emulsion layer, which contains a sensitiser of the formula (I), a stabiliser of the formula (II) and a stabiliser of the formula (III) ##STR1## in which R.sub.1 to R.sub.14, X.sub.1, X.sub.2, X.sup..crclbar., L.sub.1 to L.sub.5 and n have the meaning stated in the description, is distinguished by improved storage stability.

A photographic recording material with at least one light-sensitive silver halide emulsion layer, the silver halide of which is spectrally sensitised with at least one cyanine dye having the general formula (I) ##STR1## wherein X means O, S, Se, NR.sub.3 or --CH.dbd.CH--,

Photographic recording material

A spectrally sensitised photographic silver halide emulsion which is super-sensitised with an aromatic complex having a central transition metal atom which is present in a valence state which is not the highest possible for the metal concerned and which complex contains at least one non-aromatic complex ligand, is distinguished by increased sensitivity.

Photographic silver halide emulsions

The grain/sensitivity ratio of a photographic silver halide material may be improved by adding a compound of the formula I to one of its layers. The material moreover exhibits a low increase in fog on storage. ##STR1## in which: Y.sub.1, Y.sub.2, Y.sub.3 each mean one of the following residues ##STR2## R.sub.1 to R.sub.34 mean H, alkyl or aryl; two residues (R.sub.1 to R.sub.34) located on the same N atom may complete a 5-, 6- or greater-membered ring containing at least one N atom and optionally further heteroatoms; two residues (R.sub.1 to R.sub.34) located on adjacent N atoms may complete a ring involving both N atoms and at least one P atom;

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Leichlingen, Germany

Michael Missfeldt