Photographic silver halide materials containing light-absorbing dyes
AssigneeAgfa-Gevaert
InventorsRaymond G. Lemahieu, Henri Depoorter, Emiel A. Hofman
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Abstract
For absorbing light of the whole visible spectral region in a silver halide emulsion layer or in an antihalation layer of a photographic material it suffices to use a 2-pyrazolin-5-one pentamethine oxonol dye corresponding to the formula: ##STR1## wherein R is a C.sub.1 -C.sub.5 alkyl group. The dyes are used in dispersed form in at least one light-sensitive silver halide emulsion layer or in an antihalation layer.
Claims6
A photograhic light-sensitive material comprising a support and at least one light-sensitive silver halide emulsion layer wherein the emulsion layer or an antihalation layer coated on either side of the support comprises in dispersed state therein a 2-pyrazolin-5-one oxonol dye corresponding to the general formula:
- ##STR6## wherein R represents a C.sub.1 -C.sub.5 alkyl group.
Dependencies are inferred from the claim text.