摘要:
A photographic recording material on a transparent support having at least one light-sensitive silver halide emulsion layer and optionally conventional interlayers and protective layers, characterized in that the photographic recording material contains, in at least one of the above-mentioned layers, a compound corresponding to formula I, II or III ##STR1## wherein R.sub.1 denotes an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted heterocyclic group,R2 denotes hydrogen, an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted alkylthio group,R.sub.3 denotes hydrogen or an unsubstituted or substituted alkyl group,R4 denotes an unsubstituted or substituted alkyl group, an unsubstituted or a substituted aryl group or an unsubstituted or substituted heterocyclic group,X denotes an alkylene group having 1 to 8 carbon atoms in which the carbon chain may be interrupted by oxygen or sulphur atoms, or it denotes an arylene group, andZ denotes hydrogen, a cation or a precursor compound thereof which is capable of releasing the mercapto compound non-imagewise in the course of development,is distinguished by excellent interimage and edge effects and by improved sharpness and graininess compared with conventional materials.
摘要:
Light sensitive color photographic silver halide material containing at least one light sensitive silver halide layer with which a conventional diffusion fast color coupler is associated and optionally other layers, both light sensitive and light insensitive, in which material the one or more than one light sensitive silver halide layer contains, at a concentration of 10.sup.-3 to 10 mmol/mol of silver halide, a compound corresponding to the following formulaA(Z).sub.n K (I)absorbed on and adhering to the silver halide grain and reacting with the developer oxidation product (EOP) with an effective reaction rate constant of K.sub.eff .gtoreq.10.sup.3, in which formulaA is a grain active bonding group,Z denotes a divalent intermediate membern is 0 or 1 andK denotes a group which forms a colored or uncolored reaction product in the reaction with the developer oxidation product,is found to have an improved sensitivity/graininess ratio.
摘要:
The invention relates to a photographic recording material comprising a layer support and, arranged thereon, at least one photosensitive silver halide emulsion layer which contains an antifogging agent corresponding to formula (I) ##STR1## in which A, R.sub.1 and R.sub.2 are as defined in the specification. The antifogging agents according to the invention reduce fogging without significantly affecting gradation and improve the staility of the photographic material in storage.
摘要:
A color photographic silver halide material of the negative type, in which at least one silver halide emulsion layer contains as compound corresponding to the following formulaA--(Z).sub.n --F* (I)adsorbed on the silver halide grain,A being a grain-active attachment group corresponding to formulae IIa to IId: ##STR1## Z is a difunctional intermediate member, F* is a latent fogging agent group which becomes the active fogging agent (F) during color development andn=0 or 1,is distinguished by improved sensitivity.
摘要:
Remarkably high interimage and Eberhard effects are obtained when yellow DIR couplers corresponding to formuls I are added to multilayered color photographic recording materials, in particular to the green-sensitive or red-sensitive layers. These couplers can improve the sharpness and color reproduction. ##STR1## R.sup.1 denoted alkyl or aryl, R.sup.2 denotes alkyl with up to 18 carbon atoms,R.sup.3 denotes halogen, SO.sub.2 --R.sup.6, SO.sub.2 --NR.sup.7 --R.sup.8 or NH--SO.sub.2 --R.sup.6,R.sup.4 denoted H, alkyl or aryl.R.sup.5 denotes alkyl, cycloalkyl, alkinyl, aralkyl or aryl,R.sup.6 denotes alkyl or aryl,R.sup.7 denotes H or alkyl andR.sup.8 denoted H, alkyl, aryl, CO--R.sup.6 or ##STR2## and the total number of carbon atoms in R.sup.4 and R.sup.5 is not greater than 11.
摘要:
A photographic recording material comprising a carrier and at least one photosensitive silver halide emulsion layer, a non-photosensitive layer and optional conventional intermediate and protective layers, characterised in that the photographic recording material (1) contains at least one silver halide emulsion layer having a silver iodide content .gtoreq.3 mol % and an average grain diameter .ltoreq.0.4 .mu.m, and (2), at least in one layer, contains a compound having the formula I ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 denote hydrogen, an optionally substituted hydrocarbon radical, an optionally substituted alkylthio, alkyloxy or arylthio radical, an optionally substituted amino group, OH or halogen or R.sup.1 and R.sup.2 together denote the radical for completing a carbocyclic or heterocyclic ring,R.sub.4, R.sub.5 denote hydrogen, an optionally substituted alkyl or aryl radical, or an optionally substituted heterocyclic radical,R.sub.6, R.sub.7 denote hydrogen or a radical which can be split off in alkaline solution, andR.sub.8 denotes hydrogen, an optionally substituted alkyl or aryl radical, or an optionally substituted alkylthio radical.The material gives excellent inter-image and edge-effects and has improved sharpness and grain as compared with conventional materials.
摘要:
A colour photographic recording material having at least one red-sensitive silver halide emulsion layer which is associated with a cyan coupler, at least one green-sensitive silver halide emulsion layer which is associated with a magenta coupler, at least one blue-sensitive silver halide emulsion layer which is associated with a yellow coupler contains in at least one green-sensitive silver halide emulsion layer a 2-equivalent pyrazolone coupler and in a photosensitive or non-photosensitive layer a white coupler of the formula (I) ##STR1## in which X.sup.1 means an acyl residue derived from an aliphatic, cycloaliphatic or aromatic carboxylic or sulphonic acid, a carbonic acid semi-ester or a carbamic acid,Z means the residue required to complete a saturated or partially unsaturated 5- or 6-membered carbocyclic ring which is optionally substituted and/or provided with a further fused ring or ring system.The colour images produced using the recording material exhibit elevated storage stability without a subsequent increase in fog or a subsequent increase in colour density or spotting occurring during storage.
摘要:
A bleaching bath for processing of a color photographic silver halide material which contains the ferric complex of alaninediacetic acid as the bleaching agent and in a dye-stabilizing amount a formaldehyde precursor of the formula ##STR1## wherein X and Y denote the residual atoms of a hetero aromatic 5- or 6-membered ring,yields color photographic images with excellent dye-stabilizing. In the atmosphere above the stabilizing bath no formaldehyde is detectable.
摘要:
Good edge effects and inter-image effects are obtained where DIR couplers corresponding to formula I are used in color photogrpahic silver halide materials. ##STR1## in which R.sup.1 is H, Cl, --CF.sub.3, alkoxy, sulfamoyl;R.sup.2 is H, Cl, alkyl, cycloalkyl, alkoxy, alkoxycarbonyl, carbamoyl;n is 0, 1 or 2;X is O or S;Y is a group with a silver halide development inhibiting function releasable during color development;Z is benzoyl, pivaloyl, carbamoyl or a quinazolin-4-on-2-yl group.