Color photographic recording material
AssigneeAgfa-Gevaert
InventorsKlaus Sinzger, Hans Langen
Life of this patent
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Abstract
A colour photographic material having a yellow filter layer containing at least one decolourisable dye or dye to be able to be rinsed out of the material of the formula (I) ##STR1## in which R.sub.1 and R.sub.2 mutually independently mean a substituted or unsubstituted alkyl group, R.sub.3 means a hydrogen or halogen atom, an alkyl or alkoxy group R.sub.4 means a hydrogen atom, an alkyl or cyano group, R.sub.5 means a dissociable group having a pK.sub.a value of between 4 and 11 and X means an oxygen or sulphur atom, is distinguished in that the dyes are non-diffusible and completely decolourisable and do not impair the properties of the silver halide emulsions.
Claims11
A color photographic material which comprises at least one blue-sensitive, yellow-coupling silver halide emulsion layer, at least one green-sensitive, magenta-coupling silver halide emulsion layer and at least one red-sensitive, cyan-coupling silver halide emulsion layer, wherein the blue-sensitive, yellow-coupling silver halide emulsion layer, of which there is at least one, is further away from the support than the green-sensitive, magenta-coupling silver halide emulsion layer, of which there is at least one, and the red-sensitive, cyan-coupling silver halide emulsion layer, of which there is at least one, and a yellow filter layer is provided between the blue-sensitive layer and both the green- and red-sensitive layers which filter layer contains at least one decolorizable dye or dye to be able to be rinsed out of the material of the formula I in which
- R.sub.1 and R.sub.2 mutually independently are a substituted or unsubstituted alkyl group,
- R.sub.3 is means a hydrogen or halogen atom, an alkyl or alkoxy group
- R.sub.4 is a hydrogen atom, an alkyl or cyano group,
- R.sub.5 is --COOH or SO.sub.2 NHCOR.sub.8.
- R.sub.8 is C.sub.1 to C.sub.6 alkyl and
- X is an oxygen or sulphur atom.
Dependencies are inferred from the claim text.