Agfa-Gevaert Ag

Reinhart Matejec

Heinrich Odenwalder

Hans Hlschlager

Manfred Becker

Gunter Helling

Erich Wolff

Hans Langen

Wolfgang Himmelmann

Ubbo Wernicke

Erwin Ranz

Gunter Renner

Peter Bell

Hans Vetter

Johannes Sobel

Ralf Buscher

Fritz Nittel

Cuong Ly

Franz Moll

Lothar Endres

Ralf Wichmann

Erich W Boon

Jurgen Haekel

Hans-Joerg Metz

Colour photographic silver halide material with at least two blue-sensitive yellow-coupling, two green-sensitive magenta coupling and two red-sensitive cyan coupling silver halide emulsion layers of differing photographic sensitivity, in which the silver halide emulsion of the highest sensitivity blue-sensitive and the highest sensitivity green-sensitive layers have an iodide content of .ltoreq.4 mol % and an average particle size of .gtoreq.0.65 .mu.m and the silver halide emulsions of the lowest sensitivity blue-sensitive and the lowest sensitivity green-sensitive layers have an iodide content of .gtoreq.8 mol % and an average particle size of .ltoreq.0.3 .mu.m and which material contains at least one DIR compound in an effective quantity, the inhibitor of which has diffusibility of .gtoreq.0.4, is characterised by great sharpness and very good colour separation.

Color photographic silver halide material

A color photographic silver halide material in which at least one silver halide emulsion consists of 85 to 99 mol-% AgCl, 1 to 10 mol-% AgI and 0 to 5 mol-% AgBr has high sensitivity (camera sensitivity) and can be developed in at most 120 s.

Reduced silver halide coverage combined with minimal color granularity and high inter-image effects are obtained with a color photographic negative recording material which, for at least one of the spectral regions blue, green, red, contains a laminate of several component layers containing silver halide and color couplers and consisting of at least one middle component layer B and upper and lower component layers A, A', A', A'', . . . , the middle component layer B having a sensitivity higher by at least 3 DIN than each of the component layers A, A', A', A'', . . . , and in which the component layer B contains a DIR compound which is capable of releasing an inhibitor having a diffusibility of not less than 0.4.

Color photographic negative recording material containing DIR compounds

A color photographic recording material comprising at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler and typical intermediate and protective layers, in which the silver halide coating of all the photosensitive layers, expressed as AgNO.sub.3, amounts to no more than 0.3 g/m.sup.2 and the color-coupler-containing layers contain at least one p-phenylenediamine compound containing at least one primary amino group and at least one ballast group dissolved in hydrophobic oil droplets, can be developed in an environment-friendly manner using an intensifying bath.

Color photographic recording material

Light sensitive color photographic silver halide material containing at least one light sensitive silver halide layer with which a conventional diffusion fast color coupler is associated and optionally other layers, both light sensitive and light insensitive, in which material the one or more than one light sensitive silver halide layer contains, at a concentration of 10.sup.-3 to 10 mmol/mol of silver halide, a compound corresponding to the following formula

Color photographic material

Color photographic recording material containing as cyan correction dyes, azomethine dyes corresponding to the general formula IV or V ##STR1## is distinguished from materials containing the cyan correction dyes hitherto used by its increased stability of latent image nuclei when stored under tropical conditions (35.degree. C. at 90% relative humidity). In formulae IV and V,

A color photographic silver halide material of the negative type, in which at least one silver halide emulsion layer contains as compound corresponding to the following formula

Photographic recording material

Improved color graininess can be obtained with a color photographic recording material containing in association with a silver halide emulsion layer unit a non-diffusing colored color coupler which, in the coupling position, contains a diffusion-proofing primary ballast group which is attached through an azo group and which is releasable during the color coupling reaction and which coupler gives a hydrophobic dye of limited mobility in the color coupling reaction.

Color photographic recording material containing color couplers

Using a color photographic negative recording material which contains a most sensitive, a medium-sensitive and a least sensitive silver halide part layer for recording light from at least one of the spectral ranges of red, green and blue, at least one of the two more sensitive part layers containing a DIR coupler and the most sensitive partial layer and the least sensitive part layer containing a color coupler which couples faster than the color coupler in the medium-sensitive part layer by a factor of at least 1.5, the sharpness can be improved without impairing the color grain.

Color photographic negative recording material

Improved photographic recording materials contain silver halide grains having at least two zones differing in their halide composition and, as stabilizer, a compound corresponding to the formula ##STR1##

Photographic recording material and process for the production of

The sensitivity of color photographic negative films may be increased without loss of color quality or sharpness by applying at least one panchromatically sensitized, highly sensitive and black-coupling layer as uppermost, additional light sensitive and dye-forming layer on the side of the film facing the object and including in the negative material sufficient DIR-Coupler to produce an interimage effect of .gtoreq.10% in the yellow region, .gtoreq.25% in the magenta region and .gtoreq.15% in the cyan region.

Color photographic negative film

The sensitivity of highly sensitive color photographic recording materials may be enhanced by compounds releasing fogging or development accelerating compounds as a result of a reaction with color developer oxidation products and fogging may at the same time be reduced by using compounds corresponding to formula I as silver halide stabilizers: ##STR1## wherein Z denotes the atoms required for completing an oxazole or oxazine ring and

A color photographic recording material comprising at least one layer of which the primary sensitivity is blue, another layer of which the primary sensitivity is green and a further layer of which the primary sensitivity is red, gives satisfactory density graduations for details of high color saturation when a red sensitivity is produced in at least one layer, of which the primary sensitivity is green, and in at least one layer, of which the primary sensitivity is blue, the primary sensitivity being 8 to 25 DIN higher than the secondary sensitivity.

Multilayer color photographic recording material wherein a red secondary

A color photographic recording material contains at least one silver halide emulsion layer which is divided into a partial layers of different sensitivity, at least one relatively high-sensitivity partial layer containing a synthetic polymer and gelatin in a ratio by weight of from 30:70 to 80:20.

Color photographic recording material and a process for the production

Photographic recording materials containing a silver halide emulsion in which the grains have zones of differing iodide content provide improved sensitometric results.

Growing community of inventors

Leverkusen, Germany

Reinhart Matejec