Abstract: A white or grayish white substance can be formed by dipping, in the first step, aluminum or an aluminum alloy having an anodically oxidized film in a first solution containing a specific salt or electrolyzing with said first solution, thereby causing the product from this salt to enter into the micropore of said film and then, in the subsequent second step, dipping the product from the first step in a second solution containing a substance which reacts with the product from the salt to be converted into a white or grayish white compound or electrolyzing with said second solution.

Abstract: A color diffusion photographic film unit comprising (a) a light sensitive element comprising at least one photosensitive silver halide emulsion layer associated with a redox compound adapted to release a diffusible dye, (b) an image receiving element, and (c) an alkaline processing composition element, wherein a 1-m-alkyl-substituted phenyl-3-pyrazolidinone electron transfer agent of the following general formula (I) or a precursor thereof is incorporated in at least one of said elements (a) through (c) ##STR1## wherein R.sub.1 is methyl or ethyl and R.sub.2 is hydrogen or a group cleavable under alkaline conditions is disclosed.

Abstract: A white or grayish white substance can be formed by dipping, in the first step, aluminum or an aluminum alloy having an anodically oxidized film in a first solution containing a specific salt or electrolyzing with said first solution, thereby causing the product from this salt to enter into the micropore of said film and then, in the subsequent second step, dipping the product from the first step in a second solution containing a substance which reacts with the product from the salt to be converted into a white or grayish white compound or electrolyzing with said second solution.

Abstract: A color image forming process which comprises processing a photographic light-sensitive element comprising a support having thereon a layer containing imagewise distributed silver therein with an aqueous alkaline solution containing a stannous ion and in the presence of a dye and a bispyridinium compound represented by the following general formula: ##STR1## wherein R.sub.1 and R.sub.2 each represents a lower aliphatic hydrocarbon group or R.sub.1 and R.sub.2 are bonded each other to form a ring; n represents 0 or 1; and X.sup.- represents an anion; to bleach the dye in an imagewise manner. By the process of the present invention, color images which are stable to light, heat and moisture are formed using light-sensitive elements containing a reduced amount of silver salt and without using chemicals causing environmental pollution problems for the processing.

Abstract: A color image forming process comprising processing a photographic element having silver image-wise distributed therein in the presence of a specific type of complexing agent, an oxidizing agent which is peroxo acid or salt thereof, and a dye or dyes, to oxidatively bleach the dye or dyes. By the process of this invention, color images which are stable to light, heat and moisture are obtained using photosensitive materials containing a reduced amount of silver salt or silver without using chemicals causing pollution problems for the processing.

Abstract: A method for forming color images comprising processing a photographic element containing imagewise distributed silver in the presence of a polymer containing at least 30 mol % vinyl pyridines, a dye and an oxidizing agent to thereby oxidation-bleach the dye. Color images having excellent light fastness, heat resistance and humidity resistance are obtained.

Abstract: A method for forming images which comprises image-amplifying an image-wise exposed photographic element comprising a support having thereon at least one silver halide photographic layer containing an image-wise distributed material having a catalytic action by processing the photographic element with a solution containing (1) at least one cobalt (III) complex and (2) at least one organic phosphonic acid compound in the presence of a reducing agent.

Abstract: A reversal color photographic process which comprises subjecting an exposed silver halide color photographic light-sensitive material to a first black-and-white development and then (a) color developing the light-sensitive material with a color developing solution containing a water-soluble stannous salt and a phosphonocarboxylic acid compound or (b) processing the light-sensitive material with a fogging bath containing a water-soluble stannous salt and a phosphonocarboxylic acid compound and then color developing the light-sensitive material, the phosphonocarboxylic acid compound being represented by the general formula (I): ##STR1## wherein R.sub.1 is --COOM' or --PO(OM).sub.2 ;R.sub.2 is a hydrogen atom, an alkyl group containing 1 to 4 carbon atoms, --(CH.sub.2).sub.n COOM' or a phenyl group;R.sub.3 is a hydrogen atom or --COOM';M and M', which may be the same or different, each is a hydrogen atom, an alkali metal atom or an ammonium group;M is 0 or 1; andN is 1 to 4.

Abstract: A method for removing fogging and/or color mixing components formed in a color developer containing an aromatic primary amine developing agent during the development processing using the color developer which comprises contacting the color developer with an aqueous solution through a continuous fine open-cell porous diaphragm of a hydrophobic material to thereby transfer the fogging and/or color mixing components from the color developer to the aqueous solution.

Abstract: A color photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, a non-diffusible color coupler present in at least one layer on the support and a layer containing at least one compound represented by the following general formula (I) ##STR1## wherein R.sub.1 represents an alkyl group, a hydroxyalkyl group, an alkoxyalkyl group or an alkylsulfonamidoalkyl group; R.sub.2 represents an alkyl group, a hydroxyalkyl group, an alkoxyalkyl group or an alkylsulfonamidoalkyl group, R.sub.3 represents a hydrogen atom, an alkyl group or an alkoxyalkyl group, and R.sub.4 and R.sub.5, which may be the same or different, each represents a hydrogen atom, a halogen atom, a carboxyl group, a sulfo group, a nitro group, a carboxylic acid ester group, an alkyl group or an alkoxyalkyl group.

Abstract: A color image forming process which comprises processing a photographic light-sensitive element comprising a support having thereon a layer containing silver imagewise distributed therein with an aqueous alkaline solution containing a boron hydride compound in the presence of a dye to bleach the dye in an imagewise manner. By the process of this invention, color images which are stable to light, heat and moisture are formed using light-sensitive elements containing a reduced amount of silver salt and without using chemicals causing environmental pollution problems for the processing.

Abstract: A photographic process for forming photographic images comprising processing a photographic element comprising a support and at least a silver halide photographic emulsion layer having image-wise distributed therein a material possessing a catalytic action with a cobalt (III) complex with a photographic processing solution containing at least a cobalt (III) complex having a coordination number of 6 in the presence of a primary aromatic amine developing agent, in which the formation of fog is prevented by contacting the photographic processing solution with one side of a fine open-cell porous diaphragm of a hydrophobic material, such as a porous Teflon film, the other side of which is in contact with an acid solution, whereby fogging components in the processing solution are removed from the processing solution into the acid solution through the porous diaphragm.

Abstract: A method of forming a photographic image which comprises image-wise exposing a silver halide photographic element containing at least one compound having a degree of polymerization of about 10 to about 8,000 and represented by the following general formula (I):--a).sub.x (B).sub.y (I)whereinA represents ##STR1## or --CH.sub.2 --CH.sub.2 --O--, R represents ##STR2## or --OH, m is an integer of 3 to 7, R.sub.1 represents an alkyl group having 1 to 6 carbon atoms, and R.sub.2 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms;B represents a monomer unit derived from styrene, methacrylic acid ester, acrylic ester, vinyl acetate, acrylonitrile, vinyl alcohol, vinyl chloride, vinyl ether, acrylamide, N,N-dimethylacrylamide, acrylic acid, methacrylic acid, maleic acid, potassium styrenesulfonate, N,N-dialkylaminoalkyl methacrylate, vinylimidazole or vinylpyridine; andX and y represent the mole%, respectively, of A and B, with x + y = 100 and in which x .gtoreq.

Abstract: A process for processing color photographic materials, which involves color development processing an image wise exposed silver halide color light-sensitive material with a color developer, in which the color developer contains an aromatic primary amine developing agent and at least one monosaccharide selected from the group consisting of a pentose, a methylpentose and a hexose.

Abstract: A development method which comprises developing a silver halide photographic ligh-sensitive material in the presence of a compound represented by the following general formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 each represent a hydrogen atom, alklyl group, alkenyl group, aralkyl group or aryl group, X represents an anion, and P is 1 or 2.

Abstract: In a color photographic process wherein a color photographic material having at least one silver halide emulsion layer is developed after imagewise exposure in a color developer containing a primary aromatic amine color developing agent to form dye images, the intensification effect of the color images formed is increased with less formation of fog by employing silver iodobromide containing at least about 2 mole percent silver iodide as the silver halide of the silver halide emulsion and developing the silver halide emulsion layer in the presence of a cobalt (III) complex incorporated in the photographic material or a processing solution at temperatures of about 50.degree. C or higher.

Abstract: A process for color photographic processing, which comprises subjecting an exposed silver halide color light-sensitive material to a color development using a color developer containing(1) an aromatic primary amine developing agent and(2) at least one organic compound having at least one phosphono group and at least one carboxy group in the molecule.

Abstract: A color photographic process which comprises processing silver halide color photographic materials using a color developer containing a 2-alkyne-1-ol represented by the general formula: ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group, a hydroxyalkyl group, an aminoalkyl group, a carboxyalkyl group, or a formylalkyl group, and R.sub.1 and R.sub.2 may be the same or different.By using the above compound in a color photographic process, the speed of color development can be effectively promoted without increasing fog, and, further, the stability of the color developer is improved.

Abstract: A process for stabilizing a color developing solution which comprises adding one or more hydroxamic acid compounds represented by the following formula to the color developing solution: ##STR1## wherein X represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an unsubstituted or substituted aryl group having 6 to 10 carbon atoms, an amino group, an alkylamino group having 1 to 4 carbon atoms or an arylamino group.

Abstract: A process for color photographic processing, which comprises subjecting an exposed silver halide color light-sensitive material to a color development using a color developer containing(1) an aromatic primary amine developing agent and(2) at least one organic compound having at least one phosphono group and at least one carboxy group in the molecule.