Abstract: A method of forming an image which comprises subjecting a photographic element comprising a support and at least one photographic layer in which there is image-wise distributed a substance having a catalytic effect to image-wise intensification in the presence of a reducing agent using a solution containing: (1) at least one of hydrogen peroxide and compounds capable of releasing hydrogen peroxide or a halogenite, and (2) at least one nitro-substituted nitrogen-containing heterocyclic compound represented by the following General Formulae (I) and (II); ##STR1## in which R.sub.1 represents hydrogen atom, an alkyl group, SO.sub.3 M or COOM, wherein M represents a hydrogen atom, an alkali metal or ammonium group, X represents nitrogen atom or CR', wherein R' represents a hydrogen atom or a lower alkyl group, and ##STR2## in which R.sub.2 represents hydrogen atom, an alkyl group, SO.sub.

Abstract: A method of stabilizing a silver halide photographic material containing an image formed therein, said material comprising a silver halide emulsion on a support and having at least one member selected from the group consisting of iodine and an iodine containing inorganic compound in said silver halide emulsion or in an adjacent layer to said silver halide emulsion, comprising heating said photographic material.

Abstract: An intensification processing in photographic processing for color photographic elements is effectively performed with less formation of fog by incorporating in at least one of the silver halide emulsion layers or in an auxiliary layer adjacent to a silver halide emulsion layer one or more compounds of the general formula--(A).sub.x -- (B).sub.y --wherein A represents ##STR1## (wherein R represents ##STR2## or --OH; m represents an integer of 3 to 7; R.sub.1 represents an alkyl group of 1 to 6 carbon atoms; and R.sub.

Abstract: A continuous method for producing halftone images comprising:1. image-wise exposing a lith-type silver halide photographic material comprising a silver halide emulsion with not less than about 85 mol% silver chloride and not more than about 8 mol% of silver iodide and containing at least one organic silver complex compound which is substantially insoluble in water in contiguous relationship with a photosensitive silver halide emulsion which contains not less than 60 mol% silver chloride and which is chemically and spectrally sensitized; and2. developing the photographic material in a continuous fashion with a developer containing hydroquinone and a carbonyl-bisulfite adduct in the presence of a polyalkylene oxide of a molecular weight not less than 1000.

Abstract: In the high temperature color development processing of color photographic materials, the formation of reticulation and scratches on the surfaces of the photographic films is prevented and drying can be performed in a shortened period of time at a high temperature by processing the color photographic materials in a bleach solution or blix solution containing a metal complex of an organic acid, a water soluble ammonium compound and a magnesium compound.The bleach solution or blix solution does not give rise to environmental pollution and can be easily regenerated for reuse.

Abstract: Image intensifying solutions containing cobalt (III) complex salts can be regenerated through concentration by means of reverse osmosis.

Abstract: This invention is directed to a bleach-fix which is stable, excellent in bleach-fix efficiency, applicable to the processing of high-speed, light sensitive silver halide color photographic materials and free from problems of environmental pollution.

Abstract: In a thermally developable light-sensitive material comprising a support having therein or thereon at least one layer containing at least (a) an organic silver salt, (b) a light-sensitive silver halide or a component capable of forming a light-sensitive silver halide and (c) a reducing agent, the improvement wherein at least one layer provided on the support comprises, or the support is impregnated with, (d) at least one member selected from the group consisting of rosin of an acid value more than about 100, one or more diterpene acids or a mixture thereof in an amount sufficient to decrease heat fogging and to improve the storability of light-sensitive materials.

Abstract: A method is described of developing a photographic silver halide element containing developable silver halide by means of a silver halide developing composition, comprising as development activator a derivative of a polyethylene glycol or a C.sub.1 -C.sub.5 monoalkyl ether thereof corresponding to the formula:R.sub.1 O(CH.sub.2 CH.sub.2 O).sub.n X--A--Y--R.sub.2whereinR.sub.1 is hydrogen, C.sub.1 -C.sub.5 alkyl or the group X--A--Y--R.sub.2n is an integer of at least 4X is CO, SO.sub.2, CONH or, when R.sub.1 is X--A--Y--R.sub.2 may be a chemical monovalent bond,A is alkylene or arylene,Y is a sulphur or selenium atom, andR.sub.2 is an alkyl group.

Abstract: A compound having a 2- imidazoline nucleus is used a development accelerator.

Abstract: Photographic bleach-fix baths containing iron-III-complexes of aminopolyacetic acids as oxidizing agents are rejuvenated by reducing the iron-III-complexes with a reducing agent other the iron and thereafter are desilvered by treatment with iron.

Abstract: Silver is removed from used fix or bleach-fix baths by adding a compound of the general formula: ##STR1## wherein: X is an oxygen atom or imino group, R is an aryl, or a group of the formulaR.sub.1 CH.sub.2 (CHOH).sub.n.sub.-1wherein n is a positive integer from 1 to 4, and R.sub.1 is either a hydrogen atom or hydroxyl group when n is 2 to 4 and is an hydroxyl group when n is 1.

Abstract: A bleach-fix composition for use in photographic processing comprising a polycarboxylic acid bleaching agent, a thiosulfate fixing agent, and a carbonyl bisulfite adduct. The carbonyl bisulfite adduct functions as a stabilizing agent which retards sulfurization of the bleach-fix composition and thereby prolongs its useful life.

Abstract: A method for producing a phase hologram by bleaching a silver image of an amplitude hologram formed on a light-sensitive silver halide photographic material, wherein the bleaching is conducted using a solution containing an N-halogeno compound to inhibit the binder of the layer having the silver image therein from swelling.

Abstract: A rapid process in not more than 60 seconds of an imagewise exposed photographic light sensitive film, comprising developing or activating, stabilizing, fixing, and washing.

Abstract: A process for obtaining camera speed direct positive images which employs a photographic element comprising a film support, a layer of photosensitive silver halide, and a layer containing a colorant (e.g. colloidal silver). The silver halide layer is first imagewise exposed, and the latent image developed in the presence of a compound capable of producing sulfide ions e.g. thiourea, and then the photographic element is immersed in a chemical bleach which removes the silver image generated in the silver halide layer and removes the colorant in the areas corresponding to the exposed areas of the silver halide layer, leaving a direct positive image in those areas of the colorant-containing layer which are directly under the unexposed nonimage areas of the silver halide layer.

Abstract: An improved silver halide film, multi-solution photographic processing method and compositions having an increased speed of processing while producing good quality images including use of a developer solution having at least two, and preferably three, different developing agents and a fixing solution which is a combination of at least two different fixing agents. The process and compositions are particularly suitable for convenient processing of x-ray film and microfilm under ordinary room temperature conditions and also for processing in small machines. Following processing, a wash in an archival quality promoting solution is beneficial for microfilm. The x-ray film processing compositions find advantageous utility in the processing of dental x-rays and may conveniently be provided in powder form, for packaging and shipping, with dissolution by the end user.

Abstract: An improved method for developing an exposed silver halide color photosensitive material is disclosed which comprises conducting the development in the presence of a cyan coupler. The coupler has, in the active position thereof, the following split-off group: ##STR1## WHEREIN R.sub.1 is an aliphatic hydrocarbon residue, an aromatic hydrocarbon residue, or a heterocyclic ring residue; R.sub.2 is an aliphatic hydrocarbon residue or an aromatic hydrocarbon residue; l is an integer of 0 to 4 inclusive.

Abstract: A method of developing an exposed lith-type silver halide emulsion is described wherein development takes place in the presence of a sulphonium compound corresponding to the formula: ##STR1## wherein: EACH OF X.sub.1 and X.sub.2 represents an alkyl group at least one of which carries a hydroxy, carboxy, sulpho or cyano group,R represents an alkyl group, an aryl group or the group ##STR2## wherein A is a divalent organic group, or R may represent hydrogen when both X.sub.1 and X.sub.2 are hydroxyalkyl,n is an integer of at least 1 when the compound is a disulphonium compound and is an integer of at least 2 when the compound is a monosulphonium compound, andZ is an anion but does not exist when one of X.sub.1 and X.sub.2 itself contains an anionic group.

Abstract: Direct-positive emulsions are described comprising incorporated developing agents wherein the developing agents are 1,4-dihydroxybenzene compounds of which at least one of the hydroxyl groups has been esterified to form a hydrolyzable aliphatic acyloxy group comprising a quaternary ammonium group.