Clariant Corporation

Hoechst Aktiengesellschaft

Clariant Produkte (deutschland) Gmbh

Clariant Finance (bvi) Limited

Clariant Produkte Gmbh

Josef Geisenberger

Heidemarie Menzel

Andreas Wuzik

Hans-Tobias Macholdt

Wolfgang Bauer

Reinhard Pedrazzi

Ruediger Baur

Eduard Michel

Andreas Harz

Theodor Papenfuhs

Hartmut Springer

Martin Ulrich Schmidt

Felix Wendelin Grimm

Holger M Buch

Ulrike Rohr

Karl-Heinz Schweikart

David Blum

Rudolf Randler

Steffen Schneider

Thomas Metz

Christian Zeh

Martin U Schmidt

Felix W Grimm

The invention relates to the use of a pigment composition containing between 86.0 and 99.9 total mol % of C.I. Pigment Yellow 74 molecules and between 14.0 and 0.1 total mol % of at least one monoazo pigment of the formula (1) wherein Rrepresents Cl, OCH, OHor NOas a coloring agent for pigmenting ink-jet inks and color filters.

Use of a pigment composition comprising mixed crystals based on CI pigment yellow 74

A dye of the formula (2) and a process for preparing the same, wherein the radicals are as defined in the specification 

Water-soluble yellow azo dyes

The invention relates to a colorant composition that substantially comprises a colorant of formula (1) and a colorant formula (2) or (3). The magenta colorant mixture is advantageously used in ink-jet printing and yields storage-stable and water-proof ink formulations.

Colorant composition

The invention relates to a dye mixture consisting essentially of one dye of formula (4) and a dye of formula (5). The black dye mixture is advantageously used for ink jet printing and provides high light-resisting and neutral black ink formulations 

Dye combination

The invention relates to aqueous colorant preparations containing A) between 0.1 and 50 wt. % of at least one organic and/or inorganic pigment and/or at least one organic colorant. B) between 0.01 and 80 wt. % of at least one naphthol-oxyalkylate sulfopropyl ether, one alkanol-oxyalkylate sulfopropyl ether or one alkylphenol-oxyalkylate sulfopropyl ether. C) between 0 and 30 wt. % of at least one organic solvent. D) between 0 and 20 wt. % of other standard derivatives and E) between 10 and 90 wt % of water, respectively in relation to the total weight (100%) of the colorant preparation. The colorant preparation is used, for example, in printing inks, especially ink jet printing inks.

Water-based colorant preparations

Black trisazo metal complex dyes

A colorant mixture of C.I. Acid Red 289 and C.I. Reactive Red 23 and optionally a shading colorant is used for magenta recording fluids.

Colorant mixture

Water-soluble stilbene dyes, their preparation and use

Red acid dyes for injet printing and paper dyeing

The present invention relates to the use of a CuPc composition consisting essentially of CuPc, e.g., C.I. Pigment Blue 15:3, and a hydroxymethylphthalimido CuPc, as a colorant in electrophotographic toners and developers, powders and powder coating materials, electret materials, inkjet inks, and color filters, wherein the phthalocyanines have a particle morphology with an average length-to-width ratio of more than 2.5:1.

Use of improved cyan pigments in inkjet inks

Water-soluble red acid dyes, their preparation and use

Cyan pigments in electrophotographic toners and developers

Anthraquinone, phthalocyanine, formazan, azomethine, dioxazine, phenazine, triphenylmethane, xanthene, thioxanthone, nitroaryl, naphthoquinone, pyrenequinone and perylenetetracarbimide dyes which contain one or two groups of the general formula ##STR1## where Y is vinyl or an ethyl group which contains in a .beta.-position a substituent which is eliminable by means of alkali to form a vinyl group, and W is a direct bond or a group of the general formula ##STR2## where M is a hydrogen atom or an alkali metal and n is zero, 1 or 2. The dyes have very good fiber-reactive properties and are advantageously suitable for dyeing carboxamino- and/or hydroxy-containing material, for example wool, in particular cellulose fiber materials; on these materials they produce strong fast shades in a high degree of fixation.

Water-soluble fiber-reactive dyes and preparation and use thereof

A process for the preparation of compounds of the formula ##STR1## in which the side chains --CH.sub.2 --SO.sub.2 --CH.sub.2 --CH.sub.2 --OH are in the ortho-, meta- or para-position relative to one another and the amino group is in the 4-position in the case where the two side chains are in the 1,2- or 1,3-position, by reacting 1 mol of xylylene dichloride with at least 2 mol of mercaptoethanol at 40.degree.-150.degree. C. in an aqueous medium in the presence of an acid-binding agent to give the corresponding compound of the formula ##STR2## oxidizing this product with at least 4 mol of hydrogen peroxide at 50.degree.-120.degree. C. at a pH&lt;7 in the presence of tungsten(VI) compounds to a compound of the formula ##STR3## converting this product with anhydrous sulfuric acid at 30.degree.-45.degree. C. to the corresponding bis(sulfuric ester), nitrating the latter with high-percentage nitric acid at 0.degree.-60.degree. C. to give the bis(sulfatoethylsulfonylmethyl)nitrobenzene, hydrolyzing this product after the addition of water by heating followed by reduction.

Bis(hydroxyethylsulfonylmethyl)anilines and a process for their

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Sulzbach, Germany

Josef Geisenberger