Abstract: Silver halide emulsions, which have been precipitated in the presence of polymers having recurring units with a 8-hydroxy quinoline structure are suitable for the preparation of vesicular images.

Abstract: A method of forming dye images by processing a photographic material containing imagewise distributed catalyzer substance in the presence of hydrogen peroxide, a coupler and certain aromatic primary amine compounds.

Abstract: A method for bleaching silver halide color photographic materials is described using a bleach solution containing an organic acid metal complex salt and hydrogen peroxide or a compound releasing hydrogen peroxide, wherein the bleaching activity of the bleach solution can be effectively maintained for a long period of time by supplying thereto a replenisher composed separately of a composition containing hydrogen peroxide or a compound releasing hydrogen peroxide and a composition containing an organic acid metal complex salt, which are separately stored and added as a mixture thereof or separately to the bleach solution when the activity thereof is weakened during processing or during storage of the bleach solution.

Abstract: A bleach solution for color photographic materials having a high bleaching activity and capable of providing color images having good quality containing hydrogen peroxide or a compound releasing hydrogen peroxide, an organic metal complex salt, and an unsubstituted or substituted aromatic sulfonic acid or a salt thereof.

Abstract: A method is disclosed for alleviating the partial inactivation of color couplers caused by adventitious reaction with vapors of formaldehyde or a vinyl monomer. Partial inactivation is evidenced by decreased spectral absorptivity of the dye produced by reaction of the color coupler with color dye-forming compounds, such as oxidized photographic color developing agents. The method comprises contacting a partially inactivated coupler with an aqueous solution comprising an oxidizing agent and an oxidation accelerator.

Abstract: Process for treating a light-sensitive silver halide color photographic material which comprises removing, after color development of the imagewise exposed light-sensitive silver halide color photographic material, the image silver with a bath containing hydrogen peroxide or a hydrogen peroxide releasing compound in combination with at least one compound selected from the group of lower alkyl aliphatic carboxylic acid, alkylidene diphosphonic acid and an alkali metal salt thereof under the conditions of forming substantially no dye image.

Abstract: A photographic material for the production of an image in a dry process by forming a vesicle image upon the decomposition of a peroxide compound at image nuclei of silver by providing a layer containing a silver salt which forms upon exposure to light, in imagewise distribution, image nuclei. The silver salt has a grain size of less than 0.3 .mu.m and is present in the layer in an amount of from 1-500 mg/m.sup.2.

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 process is disclosed for producing an ultrasonographic image using an element containing a catalyst and a diffusion barrier. When the element is placed into contact with a solution containing a catalyst poison and ultrasound is imagewise applied, the catalyst is selectively poisoned in ultrasonically exposed areas. Thereafter the unpoisoned catalyst remaining is employed to form a viewable image. The catalyst can be electrically biased to avoid poisoning during extended contact with the catalyst poisoning solution in the absence of ultrasound. In one form the catalyst can be generated using a photographic silver halide emulsion.