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AssigneeAgfa-Gevaert
InventorsHenri F. Olbrechts, Raphael K. Van Poucke, Christian C. Van den Sande
Estimating the term…
Color photographic motion picture elements adapted to form a multicolor photographic dye image and an integral, infrared-absorbing, dye sound track and comprising 1-hydroxy-2-N-(5-alkyl-thiazol-2-yl)-naphthamide couplers that are capable of forming quinone imine dyes absorbing infrared radiation in the spectral range from about 600 to about 1000 nm by reaction with an oxidized aromatic primary amino developing agent, the thiazol-2- yl group of said naphthamide couplers bearing a 4-para-C.sub.1 -C.sub.4 alkoxyphenyl group or a 4-para-C.sub.1 -C.sub.4 alkylphenyl group, the hydrogen atoms of said C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkyl being unsubstituted or at least one of them having been substituted by a halogen atom.
Photographic element comprising a support and a plurality of photosensitive silver halide emulsion layers for forming a multicolour photographic dye image and an integral, infrared-absorbing, dye sound track, one of said photosensitive silver halide emulsion layers or a non-photosensitive hydrophilic colloid layer in water-permeable relationship therewith comprising at least one dispersed 1-hydroxy-2-N-(5-alkylthiazol-2-yl)-naphthamide coupler capable of forming an infrared-absorbing quinone imine dye by reaction with an oxidized aromatic primary amino developing agent, wherein said naphthamide coupler bears on the thiazol-2-yl group a 4-para-C.sub.1 -C.sub.4 alkoxyphenyl group or a 4-para-C.sub.1 -C.sub.4 -alkylphenyl group, the hydrogen atoms of said C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkyl being unsubstituted or at least one of them having been substituted by a halogen atom.
Dependencies are inferred from the claim text.