Abstract: A silver halide photographic light-sensitive material containing a diffusion resistant coupler, a light-sensitive silver halide and at least one compound represented by the following general formula (I) in the same layer or different layers on a support. ##STR1## Wherein R.sub.1 and R.sub.2, which may be the same or different, each represents a hydrogen atom or an alkyl group having from 1 to 10 carbon atoms, or R.sub.1 and R.sub.2 may be bonded to each other to form a heterocyclic ring together with the nitrogen atom; R.sub.3, R.sub.4, R.sub.5 and R.sub.6, which may be the same or different, each represents a hydrogen atom, a halogen atom, a hydroxy group, an amino group, an alkoxy group, an acylamido group, a sulfonamido group, an alkylsulfonamido group or an alkyl group, or R.sub.1 and R.sub.6 or R.sub.2 and R.sub.3 may be bonded to each other to form a 5-membered or 6-membered ring; X represents HPF.sub.6 or HBF.sub.4 ; and n represents an integer from 1 to 3.

Abstract: A process for the production of a multicolor reversal image with improved color balance is provided which process comprises the steps of directing incident image light dot- or linewise modulated by a light-distributing means onto a multicolor photographic silver halide emulsion material containing a blue-, a green- and a red-sensitive silver halide emulsion layer and processing said silver halide emulsion layers to form a color reversal image.In the maximum density part of the dots or lines of said light distributing means e.g. a contact screen the ratio of the absorption density for the light corresponding with the spectral sensitivity region of the silver halide emulsion layer being during the exposure most remote from the light-distributing means to the absorption density for the light of the whole visible spectrum (400-700 nm) is higher than the said ratio in any other density part of the dots or lines (see FIG. 1).

Abstract: The light-sensitive color photographic silver halide recording material contains in at least one of its light-sensitive gelatine-containing layer, color formers for the formation of the image dyes in the three primary colors, a crosslinking agent activating the carboxyl groups of gelatine selected from carbamoylonium salts, carbamoylpyridinium salts and carbamoyloxypyridinium salts and a compound acting as aldehyde-scavenger which corresponds to the general formula ##STR1## wherein Z represents the atoms required for completing a 5-6-membered substituted or unsubstituted carbocyclic ring or a substituted or unsubstituted heterocyclic ring which may contain oxygen, nitrogen or sulfur as hetero-atom.

Abstract: In one embodiment, the present invention is concerned with novel xanthene compounds of the formula ##STR1## wherein each R.sup.1 is the same and is selected from ##STR2## R.sup.2 is alkyl, R.sup.3 is an electron-withdrawing group positioned ortho, meta or para to said N atom, R.sup.4 is hydrogen, alkyl or an electron-withdrawing group positioned ortho, meta or para to said N atom; R.sup.5 is alkyl; X is hydrogen, an electron-withdrawing group or an electron-donating group; and A is an anion. In another embodiment, the present invention is concerned with photographic products and processes employing these xanthene compounds, e.g., as photographic light-screening dyes.

Abstract: A method for reproducing a color image. A dye image is formed on a photographic light-sensitive material by imagewisely exposing the material and processing to form a dye image. Through the imaged photographic light-sensitive material, an exposure is made on a photographic printing light-sensitive material which is processed in an alkaline activator solution to form a dye image thereon. The photographic light-sensitive material contains a transparent support provided thereon with red-sensitive, green-sensitive, and blue-sensitive silver halide emulsion layers. The layers each contain one of three different nondiffusible couplers capable of forming, by coupling, compounds having spectral absorption maximum wavelength in the wavelength region longer than 340 nm. The spectral absorption maximum wavelength of the compounds differ by at least 30 nm.

Abstract: A process for producing a multicolor optical filter which comprises the steps of (1) exposing a light-sensitive material and (2) developing the exposed light-sensitive material, the process employing a specific light-sensitive material including a silver halide emulsion layer (L1) and a silver halide emulsion layer (L2), each layer containing therein a specific compound or dye. Such a multicolor optical filter is useful in color pick-up tubes and color solid state pick-up devices.

Abstract: A method for the formation of a dye image. A silver halide color photographic light-sensitive material, having a support, component layers which are provided on the support and which have a swelling degree below 250 in the alkaline bath and components including an aromatic primary amine color developing agent or a precursor thereof, a nondiffusing yellow coupler, a nondiffusing magenta coupler and a nondiffusing phenolic cyan coupler having a substituted or unsubstituted acylamino group at the second and fifth positions thereof, is color developed in an alkaline bath. The material is then processed in a bleach-fixing bath.

Abstract: A process for producing a color filter plate is described, which comprisesforming a color filter pattern on a silver halide emulsion layer of a photographic material comprising a transparent support with the emulsion layer thereon, while the emulsion layer of areas to be removed is subjected to imagewise exposure, development and an etch-bleaching treatment to remove the emulsion layer of the areas,adhering a transparent plate to the emulsion layer, andabrading thereafter either the transparent support or the transparent plate to a desired thickness.

Abstract: Imidomethyl blocked photographic reagents are useful in photographic elements, film units and processes. The blocked photographic reagents have the structure: ##STR1## wherein: J represents ##STR2## X represents the atoms to complete a 5- or 6-membered ring or ring system; R represents hydrogen, alkyl or 1 to 4 carbon atoms or aryl of 6 to 12 carbon atoms; andPR represents the residue of an organic photographic reagent containing a heteroatom through which it is joined to the imidomethyl blocking group.

Abstract: A color photographic element having special chromatic effects is disclosed, the element comprising a support and three emulsion layers. Special chromatic effects are obtained by particular combinations of the sensitizers and couplers contained in the emulsion layers, the combinations being different from conventional.

Abstract: In one embodiment, the present invention is concerned with novel xanthene compounds of the formula ##STR1## wherein each R.sup.1 the same or different is hydrogen or alkyl, each R.sup.2 the same or different is alkyl or phenyl, R.sup.3 is phenyl or alkyl, Y is an electron-withdrawing group and A is an anion. In another embodiment, the present invention is concerned with photographic products and processes employing these xanthene compounds.

Abstract: The present invention is concerned with photographic products and processes, particularly diffusion transfer products and processes employing certain colored triarylmethane compounds possessing in their triaryl structure a 4'-oxo-1'-naphthylidene (or a 4'-oxo-1'-phenylidene) moiety, a naphthyl (or phenyl moiety) and a phenyl moiety substituted in the ortho-position to the central carbon atom with a non-nucleophilic group that cannot add to the central carbon atom but in alkaline solution undergoes an irreversible cleavage reaction with base that is complete within a predetermined time at a predetermined alkaline pH to provide a nucleophilic moiety that adds to the central carbon atom to form a ring-closed compound which is colorless.

Abstract: Photographic elements containing image-wise developable silver halide are developed in the presence of an oxathioether development activator according to the formula:R.sup.1 --A--(OCH.sub.2 CH.sub.2).sub.n --S--A'--(X--A").sub.m --Y--R.sup.2wherein:R.sup.1 is H, alkyl, hydroxyalkyl, or R.sup.2 --Y--(A"--X).sub.m --A'--S--,A, A', and A" is alkylene, with the proviso that A is a monovalent bond when R.sup.1 is hydrogen or alkyl or hydroxyalkyl,X is --OCO--, --SO.sub.2 --, --CONH--, or Y,Y is ligand or complexing function of the type of --S-- and --N(Q)-- (Q=H or alkyl),R.sup.2 is alkyl, which may be substituted by OH, or when Y is --N(Q)--, R.sup.2 together with Q may represent the atoms needed to complete a nitrogen-containing saturated ring,n is at least 2, and m is 0 or 1.The development activators can be used in black-and-white development or in color development. They can be incorporated in the photographic material or in the developing solution.

Abstract: In one embodiment, the present invention is concerned with novel xanthene compounds of the formula ##STR1## wherein R' is alkyl; Y is an electron-withdrawing group and A is an anion. In another embodiment, the present invention is concerned with photographic products and processes employing these xanthene compounds.

Abstract: In one embodiment, the present invention is concerned with novel xanthene compounds of the formula ##STR1## wherein X is ##STR2## wherein R' is alkyl, Y is an electron-withdrawing group and n is 0 or 1. In another embodiment, the present invention is concerned with photographic products and processes employing these xanthene compounds.

Abstract: A process for forming color photographic images having improved granularity, sharpness, and gradation by applying, after image exposure, a color reversal process including a step of performing color development in the presence of a competing coupler. The element processed is a multilayer reversal color photographic material comprising a support having coated thereon at least three differently sensitive photographic silver halide emulsion layers, the outermost layer of the color photographic material being blue-sensitive and containing a nondiffusible coupler forming a yellow dye by a coupling reaction with an oxidized primary aromatic amino color developing agent and represented by the following general formula (I) ##STR1## wherein R.sub.1 represents an alkyl group or an aryl group; R.sub.