Eastman-kodak Company

Francoise M Thomas

Gerard Amede Friour

Claude G Goumont

Philippe Strauel

Solution to accelerate the bleaching of a color photographic product

This invention concerns a kit for the development of color photographic products. The kit comprises a basic solution containing an antifogging agent, and a second solution containing a color developing agent. This kit allows an easier preparation of the developer and of replenishment solutions of the developer.

Color photographic developer kit

An aqueous solution for developing a silver halide photographic product comprises an alkanolamine in an amount greater than or equal to 0.6 mol/l, at least one wetting agent that is stable at a high pH and miscible in said developing solution, a developing agent capable of reducing the silver ions, and a quaternary ammonium salt having the following formula

Photographic solution for developing a silver halide photographic product

This invention relates to a 3-part kit preparing for a photographic developing bath for the processing of color photographic materials. The kit of this invention affords an efficient ready-to-use developing solution.

Kit for photographic color developing bath

The present invention concerns a radiographic product which makes it possible to obtain an image with no residual yellow coloring. The radiographic product comprises at least one photosensitive silver halide tabular grain emulsion spectrally sensitized with a spectral sensitizing dye in the blue region having an emission peak between 400 and 500 nm, and an optical brightener derived from 4,4'-diaminostilbene disulfonic acid having at least three anionic sulfo groups, put in the photosensitive layer of the radiographic products or in at least one layer situated between the photo-sensitive layer and the support. The radiographic product is applicable to radiographic systems including one or two intensifying screens.

Radiographic product exhibiting reduced dye stain

The present invention concerns a novel method for developing silver halide photographic products. This method involves processing photographic products that have an incorporated developing agent, and a nucleation agent, by surface application of an activator solution. This method intended for processing graphic arts films having high contrast.

Activator for a novel method of developing a photographic product with

Method of developing a photographic product with incorporated developer

The present invention concerns a method for developing a photographic product containing incorporated developers, and a layer of a novel activator. This method consists of applying to an exposed photographic product a thin layer of an aqueous homogeneous development activator solution which comprises (a) an alkanolamine in an amount higher or equal to 0.6 mol/l, (b) at least one stable wetting agent that is stable at a high pH and is miscible in the activator solution, and (c) a quaternary ammonium salt.

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Chalon sur Saone, France

Francoise M Thomas