Abstract: The use of a 4-thiohydantoine in combination with an image-wise exposed diffusion transfer element comprising a negative silver halide emulsion layer and an associated physical development layer containing cadmium sulfide nuclei and an associated initially immobile dye-providing substance provides improved diffusion transfer dye images.

Abstract: The use of a soluble, reducible silver salt in combination with an imagewise exposed diffusion transfer photographic element comprising a negative silver halide emulsion and an associated physical development nuclei layer provides a resultant photographic image having intensified maximum density areas with little or no effect on minimum density areas.

Abstract: A color photographic material comprising a support having photographic layers thereon, with at least one of the photographic layers containing a non-diffusible colored coupler which releases, on coupling reaction with the oxidation product of a primary aromatic amino developing agent at development, a diffusible dye capable of being removed from the photographic layer, the non-diffusible colored coupler being represented by general formula (I):a--o--so.sub.2 --r--b (i)wherein R represents an alkylene group having 1 to 10 carbon atoms; A represents an image forming coupler residue containing a phenol nucleus or a naphthol nucleus, and wherein the --O--SO.sub.2 --R--B group is bonded to the coupling position of the coupler residue and the group can be released upon oxidative coupling with an aromatic primary amine developing agent to form a dye; and B represents a residue containing a chromophore.

Abstract: A color photographic material having a silver halide emulsion layer and containing a thioether compound which is reactable on chromogenic development thereby releasing a diffusible substance which inhibits the development of the silver halide.The thioether compound is a homophthalimide containing a removable mercapto group containing moiety in the 4-position and its nitrogen in the 2-position atom being a tertiary nitrogen.

Abstract: An improved silver halide photographic light-sensitive material comprising a support having coated thereon at least one photographic emulsion layer containing a dicarbocyanine dye having two heterocyclic nuclei which are 5- or 6-membered nitrogen-containing nuclei and which are connected to each other at the carbon atom in the 2- or 4-position thereof through a pentamethine chain, which can be substituted in the meso-position, a nitrogen atom of one nitrogen-containing heterocyclic nucleus of said carbocyanine dye being substituted by a sulfo- or carboxy-containing alkyl group, and a nitrogen atom of the other nitrogen-containing heterocyclic nucleus being substituted by an aralkyl group or an aryloxyalkyl group, with the proviso that said aralkyl and aryloxyalkyl groups are not substituted by a sulfo group or a carboxyl group.

Abstract: The present invention relates to a process for the production of masked subtractive positive color images in accordance with the silver dye bleach process. In the material to be processedA. a silver halide emulsion layer consisting at least partially of silver iodide is allocated to the dyestuff, of which the undesired parasitic color density is to be compensated,B. in a further layer, at least one second dyestuff, of which the main color density corresponds to a parasitic color density, requiring compensation, of the first dyestuff, and a silver halide emulsion free from iodide ions, are present,C. a further layer, which is adjacent to that containing the second dyestuff, contains colloidal nuclei which are capable of depositing metallic silver from soluble silver complexes,D. a separating layer is present between the layer containing the nuclei and the dyestuff layer, of which the parasitic color density is to be compensated.

Abstract: As quick-acting hardeners for protein-containing photographic layers, which do not adversely affect the sensitizers and color couplers in the photographic materials, carbodiimide compounds containing sulphobetaine groups are used.

Abstract: A photographic two-equivalent magenta coupler represented by the following general formula (I):a--s(o).sub.n --R (I)wherein A represents a residue of a magenta color image forming coupler in which one of the hdyrogen atoms on the active methylene group is eliminated; R represents an alkyl group, an aryl group or a heterocyclic group; and n represents 1 or 2; and color photographic light-sensitive material containing the two-equivalent magenta coupler.

Abstract: An incorporated-dye image forming coupler type multilayer multicolor photographic material comprising a support having thereon at least two silver halide emulsion layers each of which is sensitive to a different spectral wavelength range, with the silver halide emulsion layer which first receives light at image exposure being positioned so that the light is received through a non-sensitive hydrophilic layer containing a semidiffusible color coupler which forms a dye image having a substantially complimentary color to the sensitive wavelength range of the silver halide emulsion layer first receiving light at image exposure and which has a diffusion coefficient of from about 0.25 to 0.80 as defined by the relationshipdiffusion coefficient = D.sub.B /D.sub.Awherein D.sub.A is the color density formed by the color coupler where the color coupler is present in the same layer as silver halide particles, developed without imagewise exposure, and D.sub.

Abstract: Integral negative-positive diffusion transfer reflection prints are provided with a non-planar, e.g., lenticular, surface through which the transfer image is viewed.

Abstract: Lipophilic non-diffusing color formers yielding diffusing dyes are employed in color transfer systems to provide improved diffusion and better quality of color. The color formers are two-equivalent couplers having in the coupling position acyloxy, or sulfonyloxy groups which complete a lactone or sultone ring, respectively, and are stable to hydrolysis under alkaline development conditions. Color-providing material is created by a reaction which opens the lactone or sultone intramolecular ring after the non-diffusing color former reacts with the oxidized color developer molecule. Examples are given of intramolecular 2-equivalent couplers which react with the developer to give yellow, magenta and cyan dyes. The 2-equivalent color formers are unique since they have an intramolecular lactone or sultone ring which opens under oxidative coupling conditions to yield the diffusible yellow, magenta and cyan dyes.

Abstract: A color photographic material having three light-sensitive silver halide emulsion layers separately sensitized to different regions of the spectrum and containing an each colorless coupler for the production of partial color images, is partly fogged in one of said layers to produce on color development in unexposed areas a color fog with a density of between 0.25 and 0.75 suited to compensate for undesired side densities of the image dye in one or more of the other of said layers.

Abstract: Photographic elements are described which comprise a support having thereon at least one image dye-providing layer unit and at least one layer containing an immobile anionic organic acid having an equivalent weight based on acid groups of at least 70 and less than 800. In one embodiment of this invention, photographic elements can be contacted with a transition metal-ion complex such as a cobalt(III) ion complex before contact with a fixing bath and sufficient transition metal ion will be retained in the photographic element to bleach the silver in said element.

Abstract: A photographic two-equivalent magenta coupler, capable of forming a magenta color image upon coupling reaction with an oxidation product of an aromatic primary amine developing agent, represented by the following general formula I: ##STR1## wherein (A) represents a residue of a magenta color image forming coupler; ##STR2## represents a group which is substituted FOR ONE HYDROGEN ATOM OF THE ACTIVE METHYLENE GROUP IN THE COUPLER A; Z represents an oxygen atom or a sulfur atom; B represents a -- Y group, a -- D -- Y group, or a ##STR3## group; D represents an oxygen atom or an --NR -- group; R represents a hydrogen atom, an alkyl group or an aryl group; Y represents an alkyl group, an aryl group or a heterocyclic group; and Q in the ##STR4## group represents the non-metallic atoms necessary to form a 5-membered or 6-membered nitrogen containing heterocyclic ring; and color photographic light-sensitive materials containing the two equivalent magenta coupler.

Abstract: A yellow color forming photographic coupler represented by the following general formula (I): ##STR1## wherein Q represents an aliphatic group, an alicyclic group, an aromatic group or a heterocyclic group; Y represents a hydrogen atom, an aliphatic group, an alicyclic group, an aromatic group or a heterocyclic group; R represents a divalent aliphatic group, a divalent alicyclic group, a divalent aromatic group or a divalent heterocyclic group; and Z represents an oxygen atom, a sulfur atom or a nitrogen atom substituted with an electron attracting group.

Abstract: A silver halide photosensitive element using specifically defined yellow, magenta and cyan color couplers in the individual respectively blue, green and red-sensitive layers.

Abstract: A light-sensitive color photographic material comprises four silver halide emulsion layer units, one for recording each of the yellow, magenta and cyan partial images and one which serves as a color correction layer. The latter mentioned silver halide emulsion layer is fogged, has a lower light-sensitivity than the light-sensitive partial image recording layer, and contains color couplers for producing a yellow to magenta masking image to compensate for the undesired side densities in at least two image recording layers.

Abstract: A process for forming color photographic images which comprises color-developing at temperatures higher than about 30.degree. C a multilayer color photographic material comprising a support having thereon at least two photosensitive emulsion layers each containing a coupler which can form a non-diffusible colored dye on coupling with the oxidation product of an aromatic primary amino color developing agent and at least one fogged emulsion layer containing a coupler which can form a non-diffusible colored dye on coupling with the oxidation product of an aromatic primary amino color developing agent.

Abstract: Silver halide photographic sensitive materials which comprise a surface layer containing acid treated gelatin and alkali treated gelatin, wherein the ratio by weight of the alkali treated gelatin to the acid treated gelatin is about 0.5 to less than about 100%.

Abstract: In a color photographic multilayered material which is suitable for rapid processing the protective layer and the auxiliary layers contain pigskin gelatine ashed under acid condition.

Abstract: A spectrally sensitized silver halide photographic emulsion containing, in combination, supersensitizing amounts of at least one sensitizing dye represented by the following general formula (I): ##STR1## wherein Z.sup.1 and Z.sup.2 each represents an atomic group necessary for completing a benzimidazole nucleus, an oxazole nucleus, a benzoxazole nucleus, a naphthoxazole nucleus, a thiazole nucleus, a benzothiazole nucleus, a naphthothiazole nucleus, a selenazole nucleus, a benzoselenazole nucleus or a naphthoselenazole nucleus excepting that both of Z.sup.1 and Z.sup.2 do not simultaneously represent an atomic group necessary for completing an oxazole nucleus, a benzoxazole nucleus or a naphthoxazole nucleus; R.sup.1 and R.sup.2 each represents an aliphatic group which may be substituted and the carbon chain of which may be interrupted with an oxygen atom or a sulfur atom; R.sup.0 represents a hydrogen atom, an alkyl group or an aralkyl group; X.sub.(1).sup.

Abstract: A multilayer color photographic light-sensitive material comprising a support having thereon at least two silver halide emulsion layer units, each of which is sensitive to radiation of a substantially different wavelength region within the wavelength region of from about 220 nm to about 800 nm and contains a color-forming coupler capable of forming a dye on coupling with an oxidized primary aromatic amine developing agent, with at least one of the emulsion layer units containing an ICC coupler represented by the general formula (I) ##STR1## wherein Cp represents a coupler residue; L and M each represents a nitrogen atom or a methine group, V represents a monocyclic or dicyclic aromatic ring of the benzene series, and at least one of L and M represnts a nitrogen atom; which releases a triazole derivative or a diazole derivative on coupling with an oxidized primary aromatic amine developing agent, and with the emulsion layer unit containing the ICC coupler represented by the general formula (I) or another layer

Abstract: A color photographic light-sensitive material which comprises a support having thereon at least one emulsion layer unit comprising;A. a hydrophilic colloid layer containing spontaneously developable silver halide grains which are associated with a coupler capable of reacting with an oxidation product of an aromatic primary amino color developing agent to provide a dye and which are rendered substantially light-insensitive with a desensitizer, andB. an adjacent negative type light-sensitive silver halide emulsion layer associated with a compound capable of reacting with an oxidation product of an aromatic primary amino color developer to release a diffusible development inhibitor.

Abstract: A process for hardening protein-containing, preferably gelatin-containing, photographic layers wherein as hardeners unsubstituted or substituted esters of 2-substituted, 1,2-dihydroquinoline-N-carboxylic acids and/or unsubstituted or substituted esters of 1-substituted 1,2-dihydroisoquinoline-N-carboxylic acids are used.

Abstract: A photographic silver halide emulsion containing a yellow color forming coupler, in which one hydrogen atom of an active methylene group is replaced by a 2,5-dioxo-1-imidazolidinyl group, in which a nitrogen atom at 3-position and a carbon atom at 4-position are connected to form a ring through a divalent aliphatic radical, a photographic element containing the emulsion and a method for forming color photographic images which comprises developing the image-exposed photographic silver halide emulsion with a primary aromatic amino developing agent. These yellow color forming couplers have a high coupling reactivity as well as no adverse effect on the bleaching of developed silver and thus they are suitable for use in rapid processing type color photographic materials.

Abstract: A light-sensitive silver halide color photographic material comprising a new development inhibitor releasing type compound and a hardening agent and a process for developing thereof.

Abstract: Photographic elements are disclosed which contain a blocked development restrainer which is designed to provide timely release of a development restrainer when the photographic element is processed with an alkaline processing composition. The photographic elements are especially useful in image-transfer film units where the blocked development restrainers will permit initial development to occur and, upon cleavage, will substantially restrain further development.

Abstract: A silver halide color photographic material comprising a support having thereon at least a silver halide emulsion layer containing a hydrophobic phenolic or naphtholic cyan dye forming coupler together with a 2-(2'-hydroxyphenyl)benzotriazole compound. The color photographic material provides a cyan dye image having improved moisture resistance and high fastness to heat.

Abstract: Timing layer for color diffusion transfer assemblages comprises a mixture of cellulose acetate and a maleic anhydride copolymer with 2 to 20% by weight of the mixture being said copolymer.

Abstract: The present invention relates to photography and, more particularly, to diffusion transfer process photographic film units which comprise a photosensitive element adapted to provide, by diffusion transfer photographic processing, selective dye image recordation of incident actinic radiation as a function of the point-to-point degree of photosensitive element exposure, which film unit includes a plurality of photosensitive units each exhibiting a predetermined gamma of substantially the same value and within a range of 1.1 to 1.

Abstract: An improvement is provided in processes wherein an oxidation-reduction reaction is utilized to form an image. In one aspect of this invention, the improvement comprises employing an oxidizing agent and a reducing agent which undergo imagewise redox reaction in the presence of catalytic material, the oxidizing agent and the reducing agent being so chosen that the reaction products are noncatalytic for the oxidation-reduction reaction. In another aspect of this invention, a substitution inert metal complex is utilized as the oxidant in oxidation-reduction image-forming processes. In a specific aspect, image-transfer film units and processes of forming image records in image-transfer film units are disclosed wherein an inert transition metal complex and a reducing agent, which undergo redox reaction in the presence of a catalytic material, are present during processing of said film unit.

Abstract: A color photographic light-sensitive material, comprising a support having thereon at least one silver halide emulsion and the light sensitive material containing a colored cyan coupler having a main absorption in the blue region of the spectrum and a colored cyan coupler having a main absorption in the green region of the spectrum, and a colorless cyan coupler, each coupler being capable of coupling with an oxidation product of a p-phenylenediamine color-developing agent to form a cyan dye.

Abstract: This invention relates to photographic film structures for forming color transfer images viewable by reflected light without separation of the photosensitive and image-receiving components and to diffusion transfer processes employing these unitary film units wherein a dye is initially positioned in the image-receiving component to offset the color stain that tends to form in the highlights of the transfer image during aging. Any dye or mixture of dyes may be employed which are capable of absorbing visible light in a wavelength range complementary to the wavelength range absorbed by the color stain and are used in a concentration such that the highlights, i.e., D.sub.min areas of the transfer image, appear substantially white after aging, as observed by the eye. In a preferred embodiment, the dye employed is a dye developer.

Abstract: The color speeds of a multicolor photosensitive element are balanced during the manufacture thereof by continuously introducing into said element optical filter means adapted to modulate the photographic color speed of at least one of the selectively sensitized silver halide emulsions relative to the other(s), and then adjusting the density of said optical filter means during coating to an amount sufficient to obtain the desired color balance.

Abstract: An incorporated-coupler multi-layered color photographic light-sensitive material which comprises a support having thereon at least two light-sensitive emulsion layer units which provide, upon color development, images having substantially different hues, at least one of the light-sensitive emulsion layer units comprising two or more unit layers in which at least one of which unit layers contain an ICC uncolored coupler alone or in combination with another coupler.

Abstract: A method of forming color photographic images which comprises developing an image-exposed photographic silver halide emulsion layer with a primary aromatic amino color developing agent in the presence of a yellow color forming coupler, in which one hydrogen atom of an active methylene group is substituted with a 5-alkylidene-3-hydantoinyl group and a color photographic light-sensitive element which comprises a silver halide emulsion containing a yellow color forming coupler, in which one hydrogen atom of an active methylene group of the coupler is substituted with a 5-alkylidene-3-hydantoinyl group. These yellow color forming couplers have a high coupling reactivity and additionally provide a stable coupler dispersion.

Abstract: A silver halide photographic light-sensitive material having at least one hydrophilic layer to be dyed and containing, in a hydrophilic layer to be dyed, a dye represented by the following general formula (I): ##EQU1## wherein R represents an alkyl group or an alkenyl group; A represents an imino group (--NH--); Y represents an oxygen atom or a sulfur atom; Q represents an aryl group substituted with at least one of a sulfo group, a sulfoalkyl group and a carboxy group; L represents a methine group; n represents an integer of 0 to 1, and m and p each represents an integer of 0, 1 or 2; a silver halide photographic light-sensitive material containing at least one spectrally sensitized silver halide emulsion layer and in at least one hydrophilic layer to be dyed of the photographic light-sensitive material, at least one dye represented by general formula (I) as set forth above; and a silver halide photographic light-sensitive material containing at least three silver halide emulsion layers having different spec

Abstract: A photographic photosensitive material comprising a support having thereon at least one photosensitive silver halide emulsion layer, at least one photosensitive silver halide emulsion layer containing a compound which releases an organic development inhibitor on development, and a colloid layer containing a basic synthetic polymer containing therein the repeating unit represented by the formula (I) ##EQU1## wherein R.sub.1 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms; R.sub.2 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms or an aryl group; m is 1 or 2; n is 1 or 2; q is 1 or 2; and A.sub.1 represents a group containing a nitrogen atom which forms a secondary amino group, a tertiary amino group or a quaternary ammonium group, and A.sub.1 may combine with R.sub.2 ; or the formula (II) ##EQU2## wherein A.sub.2 represents a hydrogen atom or a substituted or unsubstituted alkyl group; A.sub.

Abstract: Photographic elements, processes for forming images in photographic elements and new compounds are disclosed. Generally, the invention relates to immobile compounds which can be used to provide positive images from negative recording-developing photographic materials such as negative silver halide emulsions. The compounds contain a photographically useful group such as a dye or dye precursor and are capable of releasing said photographically useful group under alkaline conditions, and are also capable of reaction with an oxidized silver halide developing agent before substantial release of said photographically useful group occurs, to provide a reaction product having a substantially lower rate of release of said photographically useful group. In specific embodiments, the compounds of this invention contain an electrophilic cleavage group located in the linkage between a ballast group and a photographically useful moiety wherein said electrophilic cleavage group is a carbamic acid derivative.

Abstract: A multilayer color photographic material with improved color reproduction comprising a support having thereon at least two photosensitive silver halide emulsion layers which provide color images having different colors from each other, the multilayer color photographic material containing at least one interlayer color correction coupler as defined hereinafter.

Abstract: A color photographic silver halide light-sensitive material containing a 2-equivalent alpha-acylacetoamide yellow dye-forming coupler and a monoalkylhydroquinone.

Abstract: The present invention relates to photography, particularly, to photographic products specifically adapted for employment in specified photographic diffusion transfer color processes and, more particularly, to photographic products which comprise a fixed or permanent composite photosensitive structure including, as essential layers, in sequence, a first dimensionally stable layer transparent to actinic radiation; a polymeric layer dyeable by a diffusion transfer process dye image-forming material; a processing composition permeable opaque layer; a first photosensitive silver halide layer having associated therewith a diffusion transfer process dye image-forming material; a second photosensitive silver halide layer; a second dimensionally stable layer transparent to actinic radiation; and means for providing a diffusion transfer process processing composition preferably retaining opacifying agent intermediate the dye image-forming material impermeable polymeric layer and the next adjacent second transparent dim

Abstract: A multi-layer color photographic light-sensitive material providing clear and sharp color images of improved color reproduction which comprises a support having thereon at least two hydrophillic colloid layers, at least one of the hydrophillic colloid layers being a light-sensitive silver halide emulsion layer, at least one of the hydrophilic colloid layers containing a basic synthetic polymer and at least one of the hydrophillic colloid layers containing a surface active agent represented by the General Formula (II) ##EQU1## wherein D.sub.1 and D.sub.2 each represents an aliphatic group having 4 to 20 carbon atoms, and M represents a cation; or the General Formula (III).sup.+m'0.sub.3 s.sup.---(o).sub.b-1 --D.sub.3 (III)wherein D.sub.3 represents an aliphatic group having 6 to 40 carbon atoms, M' represents a cation, and b represents 1 or 2.

Abstract: Heterocyclic mercapto compounds are added to a binder layer containing colloidal silver which is comprised in a color photographic multilayer material. The colloidal silver layer may be a yellow filter layer to prevent exposure of the green, and red recording layers to blue light, or an antihalation layer arranged between the layer support and the lowermost light sensitive silver halide emulsion layer. The heterocyclic mercapto compounds reduce the contact fog produced in the (first) developer and increase color density in reversal processing. Additionally there can be present in the colloidal silver layer a sensitizer for the blue, green or red spectral region.

Abstract: A water-insoluble polymer comprising repeating units at least 1/3 of said repeating units having the formula: ##SPC1##Wherein R.sup.1 and R.sup.2 are hydrogen or alkyl and R.sup.3, R.sup.4 and R.sup.5 are alkyl groups wherein the total number of carbon atoms in R.sup.3, R.sup.4 and R.sup.5 is at least 12 and X.sup.-is an anion; is useful in dye mordant compositions in photographic elements. Preferred dye mordants comprise copolymers with styrene or methyl methacrylate.

Abstract: A color photographic light-sensitive material comprising a support having coated thereon at least one light-sensitive silver halide emulsion layer containing a yellow dye-forming coupler, at least one light-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, at least one light-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, and at least one light-sensitive silver halide emulsion layer containing a compound having a thioether bond directly connected to a nitrogen-containing heterocyclic ring.

Abstract: There is provided a simple method and means for recording in any single-emulsion photographic film or plate an optical transparency which independently controls both the amplitude and the phase of the transmitted light at each transverse coordinate of the transparency according to predetermined spatial patterns. The phase and amplitude information are recorded at separate levels within the emulsion.

Abstract: The present invention is directed to novel photographic products for use in color diffusion transfer systems wherein at least one of the layers of the film unit contains an amount of a glucoside humectant effective to stabilize the silver halide emulsion(s) thereof against fog during storage.

Abstract: Photographic elements are provided which feature a support having coated thereon a first photographic silver halide emulsion layer containing image-forming coupler and development inhibitor-releasing coupler; and, a second silver halide emulsion layer containing photographic image-forming coupler, the second layer having a faster effective speed sensitivity than the first layer. Such elements have high contrast for faint images and an extended latitude of low contrast for bright images.

Abstract: A color photographic silver halide light-sensitive material which comprises a support having thereon at least two light-sensitive layers, at least one of said layers containing a compound capable of coupling with an oxidation product of a color developing agent and in which splitable hetero aromatic ring containing a triazole or diazole ring is connected to the carbon atom in the coupling position, through the nitrogen atom in the 1-position of said triazole or diazole ring.