Abstract: A ballasted non-diffusing compound that is capable of releasing a diffusible particularly light-fast azo dye from a carrier moiety, characterized in that said compound corresponds to the following general formula:CAR--L--G--Dwherein:CAR represents a ballasted carrier moiety making said compound non-diffusing in a hydrophilic colloid medium under wet alkaline conditions,L represents a chemical group cleavable or releasable from the carrier moiety as a function of a redox-reaction or argentolytic reaction taking place in the development of a silver halide emulsion layer under alkaline conditions;G represents a bivalent organic group containing at least one aromatic nucleus being substituted with a R.sup.5 R.sup.6 NSO.sub.2 NH-group, wherein R.sup.5 and R.sup.6 (same or different) represent hydrogen, an alkyl group including a substituted alkyl group or an aryl group including a substituted aryl group, andD is an azo dye part chemically linked to an aromatic nucleus of G.

Abstract: Dye-donor element for use according to thermal dye sublimation transfer comprising a support having thereon a dye layer containing a dye which has high transfer densities.

Abstract: Photographic silver halide emulsion element for dye image production comprising a support carrying at least one alkali-permeable silver halide hydrophilic colloid emulsion layer incorporating in operative association therewith a dye-releasing compound capable of releasing a diffusible dye moiety from a carrier moiety by a redox reaction, said compound corresponding to the general formula: ##STR1## wherein CAR is an organic carrier moiety capable of undergoing a redox reaction, L is a group cleavable or releasable from the carrier moiety by a redox reaction taking place in alkaline condiitons as a function of the development of a silver halide emulsion layer incorporating such compound, G is a bridging group, each of L.sup.1 and L.sup.2 is a linking member, PUG.sup.1 is a dye (precursor) group, PUG.sup.2 is a dye (precursor) group, an UV-absorber group, or a singlet oxygen scavenger group.

Abstract: A photographic silver halide emulsion material for carrying out a dye diffusion transfer process which material contains a compound that is capable of releasing a diffusible light-fast azo dye from a non-diffusible carrier moiety, wherein said dye contains the following group: --Ar.sup.1 --SO.sub.2 NR--Ar.sup.2 --NR--SO.sub.2 -- as defined herein.

Abstract: A ballasted non-diffusing compound that is capable of releasing a diffusible particularly light-fast azo dye from a non-diffusible carrier moiety, wherein said compound contains not more than two aromatic nuclei between said carrier moiety and a dye part that remaining linked to said aromatic nuclei is releasable by redox-reaction and wherein at least one of said aromatic nuclei is substituted with a R.sup.4 SO.sub.2 NH-- group as defined.

Abstract: In a dye diffusion transfer process the use of a photosensitive element incorporating hydroquinone-type or quinone-type redox-controlled yellow dye-releasing azo compounds containing in the releasable dye moiety a pyrazolone group carrying alkyl, aryl, aralkyl, hetaryl, or heterocyclyl on the 1-position and acylamido, alkylureido, cycloalkylureido, or arylureido on the 3-position, for improved color reproduction of the dye diffusion transfer image as a result of development and a redox-reaction. The invention also provides photosensitive elements incorporating such dye-releasing compounds.

Abstract: 1.

Abstract: Photographic silver halide emulsion material for use in a dye diffusion transfer process incorporating a non-diffusing compound capable of releasing a diffusible mono-azo dye or dye precursor thereof from a carrier moiety, said compound corresponding to the following general formula (I):(I) CAR--L--G--Dwherein:CAR represents a ballasted carrier moiety,L represents a chemical group cleavable or releasable from the carrier moiety as a function of a redox-reaction or argentolytic reaction taking place in the development of a silver halide emulsion layer under alkaline conditions,G represents a bivalent organic group incorporating at least three aromatic nuclei, selected from the group consisting of homocyclic or heterocyclic aromatic nuclei, with the provisions that L is linked to one end nucleus and that D is linked to the other end nucleus of said bivalent organic group; said linking being by means of a direct bond or by means of a bivalent mono- or polyatomic group, andD is an azo dye part linked to said othe

Abstract: Photographic silver halide material containing a ballasted electron-donor precursor compound yielding by alkaline hydrolysis an electron-donor compound (ED-compound) capable (1) of donating electrons to an oxidized electron-accepting silver halide developing agent e.g. for scavenging it, said electron-donor precursor compound corresponding to the following general formula: ##STR1## wherein: R represents hydrogen or a substituent, e.g. an acyl group, which on hydrolytic removal allows the replacement of R by H,R.sup.1, R.sup.2 and R.sup.3 (same or different) are hydrocarbon substituents or R.sup.3 is H, andZ and Y represent the necessary atoms to close a benzene ring that may be substituted or form a fused ring system.

Abstract: A photographic silver halide material comprises a shifted dye compound capable of releasing a dye moiety, characterized in that said compound corresponds in reduced state to general formula (1) and in oxidized state to general formula (2):A.sup.1 --L--P (1)A.sup.2 --L--P (2)wherein:A.sup.1 represents a hydroquinonyl group including a substituted hydroquinonyl group, or such group forming part of a fused ring system,A.sup.2 represents a quinonyl group including a substituted quinonyl group, or such group forming part of a fused ring system,L represents a bivalent group which undergoes a cleavage under hydrolytic alkaline conditions when the compound is in reduced state corresponding to formula (1),P represents an organic dye moiety incorporating an azo chromophoric group --N.dbd.

Abstract: A photographic material for diffusion transfer photography containing a quinonoid compound, which is capable in reduced state and under alkaline conditions of releasing a dye moiety for the production of a dye image and corresponds to the following general formula (G): ##STR1## wherein: R.sup.8 is hydrogen or methyl in the 6- or 7-position (indicated by an asterisk) on the saturated adjacent ring part of the quinonoid nucleus,R.sup.9 is an alkyl group or a substituted alkyl group, an aromatic group or a substituted aromatic group,R.sup.10 is hydrogen, an alkyl group or an aryl group, and at least one of the substituents R.sup.9 and R.sup.10 represents or includes a ballasting group of sufficient size to render said compound immobile in an alkali-permeable hydrophilic colloid layer when such layer is permeated with an aqueous alkaline liquid.

Abstract: The present invention relates to compounds of the type comprising a ballasting group which renders said compounds substantially fast to diffusion in hydrophilic colloid media and at least one photographically useful group which is chemically linked to said ballasting group, and to photographic elements containing at least one compound of the type referred to.The ballasting groups in the compounds according to the present invention are derived from mono- or di-esters or -ethers of glycerol. The linkage between ballasting group and photographically useful group can be realized via acid chlorides which are derived from the above-said glycerol derivatives.

Abstract: A photographic silver halide material comprising a compound which is capable of being reduced by a silver halide developing agent at a rate slower than that of image-wise developable silver halide and in reduced state is capable of releasing a photographically useful group, characterized in that said compound corresponds to the following formula: ##STR1## wherein: R.sup.10 and R.sup.20 (same or different)(1) represent an alkyl group, a cycloalkyl group, an alkenyl group, a cycloalkenyl group or an aralkyl group including said groups in substituted form,(2) represent an aryl group including a substituted aryl group, or(3) represent a heterocyclic ring residue including such residue in substituted form, orR.sup.10 and R.sup.20 are ringclosed, either R.sup.10 or R.sup.20 containing a ballasting group conferring diffusion resistance to the compound in hydrophilic colloid media when penetrated by an aqueous alkaline liquid;L.sup.1 and L.sup.2 (same or different) represent a ##STR2## --SO.sub.

Abstract: Method of dispersing photographic adjuvants in a hydrophilic colloid composition for forming a water-permeable photosensitive or non-photosensitive colloid layer of a photographic silver halide element with the aid of at least one high-boiling substantially water-insoluble oil-former of the class of 1,3-dialkyloxy-2-propanols and the carboxylic, phosphoric, or phosphonic esters thereof.

Abstract: Method of dispersing photographic adjuvants in hydrophilic colloid compositions for forming a water-permeable photosensitive or non-photosensitive colloid layer of a photographic silver halide element with the aid of at least one high-boiling substantially water-insoluble oil-former of the class of dihydroxymethyl(5,2,1,0.sup.2,6)tricyclodecane and the carboxylic, phosphoric, or phosphonic di-ester derivatives thereof.

Abstract: A photographic material for diffusion transfer photography containing a quinonoid compound, which is capable in reduced state and under alkaline conditions of releasing a photographically useful group and corresponds to one of the following general formulae: ##STR1## wherein: each of (Nuox).sup.1 and (Nuox).sup.2 (same or different) represents an oxidized nucleophilic group,Z represents a bivalent atom or bivalent atomic group, which is electro-negative,Q together with the group Z represents a releasable photographically useful group,Y.sup.1 and Y.sup.2 together represent the necessary atoms to close a p-quinonoid ring substituted with (a) directly linked monovalent organic ring or ring system substituent(s) having aromatic character,Y.sup.3 represents the necessary atoms to close a o-quinonoid ring substituted with (a) directly linked monovalent organic ring or ring system substituent(s) having aromatic character, andeach of R.sup.1 and R.sup.