Agfa-gevaert Ag

Bayer Aktiengesellschaft

Werner Liebe

Anita Von Konig

Gunter Renner

Edith Weyde

Gerhard Jager

Erich Wolff

Hans Vetter

Friedrich-Wilhelm Kunitz

Wilhelm Saleck

Karl Lohmer

Armin Voigt

Willibald Pelz

Heinz Wiesen

A color photographic recording material containing a magenta coupler corresponding to the following formula is distinguished during chromogenic development by high sensitivity, gradation and high color density and also minimal yellow secondary density: ##STR1## In the formula, X is H or a group releasable during the color coupling reaction;

Color photographic recording material containing color couplers

Stable, color neutral images may be produced by a short time photographic process using a color photographic recording material containing at least one silver halide emulsion layer and at least one 2-equivalent magenta coupler corresponding to formula I on a (preferably reflective) layer support. ##STR1## In the above formula, B denotes a stabilizing group,

Color photographic recording material containing 2-equivalent magenta

Dye images of high color yield and high gradation are obtained with a color photographic recording material containing 2-equivalent yellow couplers corresponding to formula I, particularly in modern rapid processing methods or in developers free from benzyl alcohol. ##STR1## R.sup.1, R.sup.2 (same or different) represent hydrogen, alkyl or halogen; R.sup.3 represents alkoxyalkyl or an alkyl radical substituted by a heterocyclic group containing at least one oxygen atom;

Color photographic recording material

The stability to light of images produced from magenta couplers is improved by a combination of a hydroquinone and an indole.

Color photographic recording material and a process for the production

Compounds having a structure corresponding to the following formula. ##STR1## wherein G represents OH or a precursor group which is unstable to alkali,

Photographic recording material

New triazoles of the formula ##STR1## are suitable stabilizing agents in photographic materials.

Photographic material, process for the production thereof, process for

An image receptor element for the dye diffusion transfer process contains an image-receiving layer, which has increasing dye absorption capacity with increasing distance from the light-sensitive layers. Such an image-receiving layer may be obtained by use of mordants in concentrations which increase with increasing distance from the light-sensitive layers or by use of at least two mordants of different dye absorption capacity, the mordant of higher dye absorption capacity being arranged in a partial layer of the image-receiving layer further away from the light-sensitive layers. Such image receptor elements provide higher dye densities with lower total concentrations of mordants.

Image receptor element for the dye diffusion transfer process

Propyne compounds, which are capable of stabilizing photographic materials against fog, color fog and flattening of the gradation are disclosed. They may be added to emulsion layers and to processing baths.

Photographic material containing a stabilizing agent

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.

Silver salt photographic material for the production of silver and

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.

Growing community of inventors

Leverkusen, Germany

Werner Liebe