Abstract: A color photographic recording material having a support, at least one light-sensitive silver halide emulsion layer containing a pyrazoloazole magenta coupler, at least one other layer which is arranged closer to the source of light and at least one other layer arranged further away from the source of light than the silver halide emulsion layer containing the pyrazoloazole magenta coupler, these other layers containing gelatine and a randomly or alternatingly structured copolymer of vinyl alcohol and an unsaturated carboxylic acid or a graft polymer of vinyl acetate on polyalkylene oxide followed by saponification of the acetate groups is distinguished by improved stability to light of the magenta dye obtained after processing.

Abstract: Azo dye salts corresponding to formula I are suitable as masking couplers. ##STR1## In Formula I, A denotes an optionally substituted aryl group;CC denotes a group optionally carrying a ballast group and capable of coupling under the conditions of photographic color development to produce a dye preferably a cyan dye (color coupler residue);L denotes a linking member which is attached at the coupling position of the color coupler residue by an oxygen, sulphur or nitrogen atom;Z denotes a group conferring solubility in alkalies;R denotes NH--CO--R.sup.1, NH--SO.sub.2 --R.sup.1, COOR.sup.2 or NR.sup.1 --R.sup.2 ;R.sup.1 denotes an optionally substituted alkyl or aryl group;R.sup.2 denotes H or a group such as R.sup.1 ;[M.sup..sym. ] denotes a mixture of organic and inorganic cations optionally containing protons, in which the proportion of organic cation amounts to at least 1/2 mol per mol of dye;m stands for 0, 1 or 2; andn stands for 1, 2, 3 or 4; n.gtoreq.m.

Abstract: 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.

Abstract: Stable, color neutral images may be produced by a short time photographic process using a color photographic recording material containing at least one silver halide emulsion layer and at least one 2-equivalent magenta coupler corresponding to formula I on a (preferably reflective) layer support. ##STR1## In the above formula, B denotes a stabilizing group,Y denotes halogen, alkoxy, alkyl, alkylsulphonyl, acylamino, alkoxycarbonyl, carbamoyl, sulphamoyl, amino, trifluoromethyl or cyano,n and o stand for 0, 1 or 2 (but not both 0),p stands for 0 or an integer .ltoreq.3-o,q stands for 0 or an integer .ltoreq.5-n, andAlk stands for alkyl which may be straight chained or branched and preferably has 1 to 22 carbon atoms and is optionally substituted, e.g. with hydroxy, alkoxy, aroxy or alkoxycarbonyl.

Abstract: Improved color graininess can be obtained with a color photographic recording material containing in association with a silver halide emulsion layer unit a non-diffusing colored color coupler which, in the coupling position, contains a diffusion-proofing primary ballast group which is attached through an azo group and which is releasable during the color coupling reaction and which coupler gives a hydrophobic dye of limited mobility in the color coupling reaction.

Abstract: In combination with oil formers of the alkylphenol type, 3-anilinopyrazolones show absorption maxima displaced by about 8 to 12 nm towards longer wavelengths and a blue secondary absorption further displaced towards the UV range and, hence, a reduced yellow secondary density.

Abstract: Improved 2-equivalent magneta couplers correspond to the following formula ##STR1## in which B is a stabilizing group,X is a phenylmercapto group substituted in a certain way,Y is halogen, alkoxy, alkyl, alkylsulfonyl, acylamino, alkoxycarbonyl, aminocarbonyl, amino, trifluoromethyl or cyano,n, o=0, 1 or 2p=.ltoreq.3-o andq=.ltoreq.5-nwith the proviso that, where n, o, p and/or q have a value of >1, the substitutents B and Y may be the same or different.

Abstract: A color photographic recording material having a magenta layer which is prepared from a casting solution containing a 4-equivalent magenta coupler of the pyrazolone series and a thiosulphonic acid ester compound has the properties of 2-equivalent magenta couplers in its coupling reactivity and the properties of 4-equivalent magenta couplers in its speed of color formation.

Abstract: 5-pyrazolone compounds which are substituted with a thioether group in the 4-position may be prepared by the reaction of a 5-pyrazolone compound which is unsubstituted in the 4-position with a sulphenic acid amide. The resulting 5-pyrazolone compounds substituted in the 4-position are suitable for use as 2-equivalent magenta couplers in color photographic recording materials.

Abstract: A no-rinse processing method for the production of color photographic images comprising the steps of developing, bleaching, fixing and stabilizing, of which the bleaching and fixing steps may be combined into a bleach fixing step, gives dye images of satisfactory quality, even after prolonged use, if the stabilizing bath used in the stabilizing step contains an effective quantity of a pyrazole which, in one of the possible tautomeric forms, corresponds to the following general formula: ##STR1## in which X represents OH or NH.sub.2,R.sub.1 represents alkyl, substituted alkyl, aryl, substituted aryl or carboxyl,R.sub.2 represents hydrogen, alkyl or substituted alkyl,R.sub.3 represents hydrogen, alkyl, substituted alkyl, aryl or substituted aryl.

Abstract: Dye images of high color yield and high gradation are obtained with a color photographic recording material containing 2-equivalent yellow couplers corresponding to formula I, particularly in modern rapid processing methods or in developers free from benzyl alcohol. ##STR1## R.sup.1, R.sup.2 (same or different) represent hydrogen, alkyl or halogen; R.sup.3 represents alkoxyalkyl or an alkyl radical substituted by a heterocyclic group containing at least one oxygen atom;R.sup.4 represents alkyl or aryl;R.sup.5 represents halogen or alkoxy;R.sup.6 represents hydrogen, alkoxy, amino, acylamino or carbamoyl;represents alkoxy, acylamino, carbalkoxy, carbamoyl or sulfamoyl.

Abstract: High interimage effects and edge effects can be obtained in multilayer color photographic recording materials if yellow DIR couplers of formula I are used therein, particularly if used in green sensitized or red sensitized layers. Sharpness and color reproduction are substantially improved. ##STR1## wherein R.sup.1 denotes a straight chained or branched alkyl group with up to 18 carbon atoms;R.sup.2, R.sup.3 denote identical or different alkyl groups with up to 18 carbon atoms;R.sup.4 denotes H, halogen, alkyl with up to 6 carbon atoms or alkoxy with up to 6 carbon atoms;R.sup.5 denotes H or alkyl with up to 9 carbon atoms; andR.sup.6 denotes a saturated or unsaturated aliphatic group with up to 10 carbon atoms,the total number of carbon atoms in R.sup.5 and R.sup.6 being not less than 5 and not greater than 10.

Abstract: A recording material having improved sharpness and color reproduction contains as uppermost layer a green-sensitive silver chloride emulsion having a layered grain structure, the ratio of diameter to thickness of the silver halide grains being at most 5.

Abstract: 2-equivalent magenta couplers with improved properties corresponding to the formula ##STR1## wherein X denotes O, S or NR.sub.9,R.sub.1 denotes hydrogen, halogen or alkoxy,R.sub.2 denotes halogen, alkoxy, acylamino, alkoxycarbonyl, aminocarbonyl which may be substituted on the nitrogen or aminosulphonyl which may be substituted on the nitrogen,R.sub.3 denotes hydrogen, halogen, alkoxy, alkyl, acylamino or alkoxycarbonyl,R.sub.4 denotes hydrogen or alkyl,R.sub.5 denotes a substituent having electron donor properties,R.sub.6 and R.sub.7 denote alkyl, acyl or sulphonyl,R.sub.8 denotes a substituent having electron acceptor properties,R.sub.9 denotes hydrogen or alkyl,m has a value from 1 to 5,n and o each have the value 0, 1 or 2 andp and q each have the value 0 or 1and the sum of p and q is 1 or 2.

Abstract: A photographic recording material containing at least one pyrazolone in at least one non-photosensitive layer I, a compound Sc, which reacts with the oxidation product of a p-phenylene diamine developer to form substantially colorless products and which is contained in a non-photosensitive layer which is not separated from the layer I by a photosensitive silver halide emulsion layer, shows improved protection against formaldehyde.

Abstract: Photographic recording materials with improved processing stability are obtained by incorporating at least one phosphonic acid and at least one polyacrylic derivative.

Abstract: Compounds having a structure corresponding to the following formula. ##STR1## wherein G represents OH or a precursor group which is unstable to alkali,X represents a substituent which cannot be split off,Y represents --O--alkyl, --SO.sub.2 --NR.sup.1 --R.sup.2, --CO--NR.sup.1 --R.sup.2, --NR.sup.1 --CO--R.sup.3, or --NR.sup.1 --SO.sub.2 --R.sup.3,R.sup.1 represents H or alkyl,R.sup.2 represents alkyl, aralkyl or aryl,R.sup.3 represents alkoxy, aroxy, alkylamino, arylamino or R.sup.2,Z represents H, alkyl, alkoxy, halogen or acylamino andn represents 1 or 2are suitable for improving the stability to light of image dyes produced from photographic couplers, in particular yellow couplers.

Abstract: Colored, reflection-viewed images having improved stability to light, heat and moisture and improved storage stability while retaining the original color character thereof are produced using color photographic recording materials containing, on a light-reflecting layer support, a red-sensitive, a green-sensitive and a blue-sensitive silver halide emulsion layer, each with spectrally associated color coupler, the yellow coupler being a 2-equivalent yellow coupler derived from pivaloyl acetanilide, the magenta coupler a 3-anilinopyrazolone coupler and the cyan coupler a coupler corresponding to the following general formula (I): ##STR1## wherein R.sup.1 represents H or halogen;R.sup.2 represents alkyl having at least 2 carbon atoms;R.sup.3 represents H or alkyl having up to 5 carbon atoms;R.sup.4 represents acyl; andX.sup.1 represents H or a group releasable in the process of color coupling.

Abstract: Yellow couplers corresponding to the formula ##STR1## wherein Y represents an aromatic, aliphatic or cycloaliphatic group,X represents hydrogen or a releasable group,R.sup.1 represents halogen, andR.sup.2 and R.sup.3 each represent an alkyl group having 1 to 20 carbon atoms,are readily soluble in oil formers and undergo coupling with a high color yield. They are resistant to heat and moisture and undergo color development to yield stable yellow dyes with an absorption maximum below 450 nm. They have a high absorption capacity in the near UV region and are virtually unaffected by fluctuations in the pH during processing.

Abstract: A color photographic recording material, in which a precursor compound for a yellow mask coupler is contained in a green-sensitive layer or in a layer adjacent thereto and in which a blue-sensitive layer is arranged between this layer and the layer support, permits very good sharpness with satisfactory speed.