Agfa-gevaert Ag

Agfa Gevaert Nv

Agfa-gevaert

Agfa-gevaert Aktiengesellshcaft

Miles Inc.

Agfa Nv

Reel/frame Agfa-gevaert Aktiengesellschaft

Agfa Gevaert Aktiangesellschaft

Gunter Helling

Wolfgang Himmelmann

Beate Weber

Jorg Hagemann

Markus Geiger

Hans Langen

Werner Krafft

Peter Bergthaller

Helmut Reiff

Klaus Wagner

Manfred Peters

Gunter Renner

Manfred Beck

Hans Hlschlager

Reinhart Matejec

Wilhelm Saleck

Kaspar Wingender

Kurt Findeisen

Wolfgang Podszun

Wulf Von Bonin

Winfried Joentgen

Erich Wolff

Jean-Marie O Dewanckele

Torsten Groth

Klaus Walz

Michael Muller

Karl Fuhr

Immo Boie

Kathy Elst

Friedrich-Wilhelm Kunitz

Johannes Sobel

Paul Marx

Ralf Weimann

Eddy A Michiels

J&ouml;rg Hagemann

Stefan Herrmann

Lydia Simon

Alexander Riebel

Prem Lalvani

Karl W Schranz

Gary Oosta

Hans-Theo Buschmann

Klaus Henseler

Gunter Matschke

Rainer Bialek

Guunther Matschke

Jurgen Strobach

Particularly smudge-resistant ink jet images are produced with an ink jet recording material which comprises a support, at least one layer applied to the support and an agent which binds ink jet dyes in a spread- and smudge-resistant manner, wherein the agent exhibits a concentration gradient such that the further is the agent from the support, the lower is the concentration.

Ink jet recording material comprising an agent exhibiting a concentration gradient.

An ink jet system comprising a recording material and at least one colored ink to be applied to the recording material by means of an ink jet nozzle, characterized in that at least either the material or the at least one colored ink contains at least one water-soluble compound of general formulae (I) or (II): ##STR1## wherein R.sub.1, Z.sub.1, Z.sub.2, Z.sub.3, Z.sub.4, Z.sub.5, Z.sub.6, X.sub.1, X.sub.2, X.sub.3, X.sub.4, X.sub.5, R.sub.2, R.sub.3, R.sub.4 and n have the meanings given in the description, are distinguished by improved protection of the ink jet dyes from light.

Ink jet system

A method has been described of preparing a photosensitive emulsion comprising tabular silver halide grains rich in silver bromide, having {100} major faces and an aspect ratio more than 1.5, wherein at least 50% of the projected area of all grains is provided by said {100} tabular grains, said method comprising the step of running in a reaction vessel an aqueous silver salt solution and an aqueous alkali halide solution rich in alkali bromide, characterized in that before starting running said reaction vessel comprises in an aqueous solution of gelatin an amount of amino-modified polyvinyl alcohol as an aqueous soluble polymer.

Method of preparing (100) tabular grains rich in silver bromide

A color photographic silver halide material having a support, at least one photosensitive silver halide emulsion layer and a polymeric cyan coupler associated with the photosensitive silver halide emulsion layer, which coupler contains polymerised units of the formula (I) ##STR1## in which X means a hydrogen atom or a group eliminable under chromogenic development conditions,

Color photographic silver halide material

A color photographic recording material which contains on a support at least one blue-sensitive silver halide emulsion layer, which is associated with a yellow coupler, at least one green-sensitive silver halide emulsion layer, which is associated with a magenta coupler, and at least one red-sensitive silver halide emulsion layer, which is associated with a cyan coupler, together with non-photosensitive interlayers between the layers of differing color sensitivity, characterised in that at least one green-sensitive silver halide layer contains a 2-equivalent pyrazolone and/or a pyrazolotriazole coupler as the magenta coupler and at least one interlayer adjacent to this layer contains as a DOP scavenger a polyester comprising at least one dicarboxylic acid of the formula I ##STR1## in which L.sub.1, L.sub.2 are optionally substituted, divalent organic residues and

Color photographic recording material

A colour photographic silver halide material with a support, at last one silver halide emulsion layer containing at least one yellow coupler and at least one silver halide emulsion layer containing a cyan coupler applied thereon, in which material the silver halide emulsion layer, of which there is at least one, containing at least one yellow coupler and/or the silver halide emulsion layer, of which there is at least one, containing at least one cyan coupler contains a compound of the formula (I) ##STR1## in which R.sub.1, R.sub.2, R.sub.3 mean alkyl, alkenyl or acyl and

Colour photographic silver halide material

A color photographic material with a support and at least one spectrally sensitised silver halide emulsion layer containing at least one color coupler, which layer contains a polymer with repeat units of the structure I ##STR1## in which R.sub.1, R.sub.2, R.sub.3 are identical or different and mean hydrogen, alkyl or halogen,

A photographic silver halide material having a support and at least one layer which is deposited thereon and which contains a polypeptide, at least 90 mole % of which consists of structural units of formula I, ##STR1## where R represents OH, NH.sub.2, NHR.sub.1, NR.sub.1 R.sub.2, NH-- or NR.sub.1 --

Photographic silver halide material

A color photographic material which contains in at least one layer a stabilizer of the formula (I) ##STR1## in which R.sub.1 means H, alkyl, aryl or acyl;

Color photographic material

A color photographic recording material having at least one silver halide emulsion layer, which material contains in at least one of its layers a combination of at least one UV absorber of the formula I and at least one low molecular weight or polymeric oil formula containing acid groups, for example of the formula T--�R.sup.21 --(Q.sup.1).sub.p !.sub.q --X.sup.21 --OH (II), exhibits improved absorption for UV light. ##STR1## In the formula I: R.sup.1 and R.sup.3 mean H, halogen, hydroxy, mercapto, alkyl, aryl, alkoxy, aryloxy, acyloxy, alkylthio, arylthio, --NR.sup.5 --R.sup.6, alkoxycarbonyl, carbamoyl or sulphamoyl;

Photographic recording material

Improved photographic properties are obtained if the photographic silver halide material contains a copolymer with polypeptide segments, wherein the polypeptide segments are derived from polypeptides with an average molecular weight M.sub.w of 2000 to 40000.

A color photographic silver halide material in which at least one coupler is dissolved or dispersed in a coupler solvent corresponding to the following formula: ##STR1## in which R.sub.1 is alkyl, alkenyl, cycloalkyl or cycloalkenyl,

Silver halide emulsions with tabular grains showing increased aspect ratio are produced by adding to the precipitiation vessel a compound of the formula I: ##STR1## in which R.sub.1 means H or optionally substituted alkyl, aralkyl or cycloalkyl

Process for the production of a silver halide emulsion

A photographic silver halide material which has at least one light-sensitive layer and contains in at least one layer a compound corresponding to formula (I) in a quantity of at least 10 mg/m.sup.2 : ##STR1## wherein k stands for 50 to 99% by weight,

A color photographic material which contains in at least one blue-sensitive layer a yellow coupler and a compound of the formula (I) ##STR1## in which R.sub.1 means hydrogen or alkyl,

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Odenthal, Germany

Gunter Helling