摘要:
A silver halide color photographic material comprises a support having thereon at least one silver halide emulsion layer and at least one cyan coupler which can release a water-soluble compound residual group which contains a 2-acyaminophenylazo group or 2-sulfonamidophenylazo group via a coupling reaction with an oxidation product of a primary aromatic amine developing agent.
摘要:
Colored cyan couplers corresponding to formula II are eminently suitable for masking the yellow secondary density of cyan dyes. The reproduction of blues and yellows is thus improved. The colored cyan couplers of formula II are preferably used together with phenolic cyan couplers bearing a phenylureido group in the 2-position and an acylamino group with a ballast group in the 5-position ##STR1## In formula II: CC represents a cyan coupler group to the coupling position of which L is attached;L is a bifunctional connecting group;Q.sup.1, Q.sup.2 represent H or photographially inert substituents;R represents a coupling component such that the compound of formula II is a yellow dye. ##STR2## in which R.sup.3 is alkyl, aryl, carboxyl, carbamoyl, acylamino, anilino;R.sup.4 is H, alkyl, aryl, a heterocyclic group;R.sup.5, R.sup.6 (same or different) represent -CO-alkyl, -CO-aryl, -CO-alkoxy, carbamoyl, -CN;represents O, S, NH;Z is the group required to complete a 5- or 6-membered carbocyclic or heterocyclic ring.
摘要:
An imaging element is described which comprises a dye image-forming coupler compound and a compound capable of releasing a fluorescent dye as a function of silver halide development. The released dye is capable of fluorescence which optically compensates for unwanted absorption of an image dye thereby resulting in color correction of the image.
摘要:
A process of obtaining highly stable color masking dyes comprises use of an element which has a support having thereon at least one silver halide emulsion layer having associated therewith an essentially colorless, immobile, ligand-releasing compound of the structure LIG-X. In this structure, X is a group which, as a function of silver halide development, is cleaved from LIG, and LIG is a ligand capable of complexing with metal ions while joined to X to form a color masking dye. A color masking dye is formed by developing the imagewise exposed areas of the described element with a developing agent to cleave LIG from X and washing substantially all of the cleaved LIG moieties in those areas out of the element, and treating the element with metal ions to form a masking dye complex with LIG-X in unexposed areas.
摘要:
A process for forming a cyan dye image by using a novel photographic 2-equivalent cyan coupler which is characterized by having a splitt-off group of the below-indicated general formula at the active position of the cyan coupler so that the oxy portion is present on the side of the active position: ##STR1## wherein R.sub.1 and R.sub.2 stand for a hydrogen atom or an organic group, provided at least one of R.sub.1 and R.sub.2 should be an organic group, is disclosed.
摘要:
This invention relates to a method for developing an exposed silver halide color photosensitive material which comprises conducting the development in the presence of the following compound: ##STR1## wherein Cp is a cyan coupler residue having been removed one hydrogen atom from active methylene of the coupler; R.sub.1 and R2 are individually hydrogen, helogen, a substituted or unsubstituted group selected from an aliphatic hydrocarbon residue, an aromatic hydrocarbon residue, acyl, carbamoyl, cyans and formyl; X is a substituted or unsubstituted group selected from an aliphatic hydrocarbon residue, an aromatic hydrocarbon residue, a heterocyclic ring residue, and a carbonyl group; and n is 0 or 1 provided that, when n is 1, X is the carbonyl group.
摘要:
A light sensitive color photographic material having at least one silver halide emulsion layer which contains a red azo masking coupler of the following formula: WHEREIN R1, R2, R3 and R4 are as defined in the description, which red cyan coupler has advantageous properties with respect to suitable absorption dyes, efficient emulsifiability and excellent reactivity.