Kao Corporation

Kao Germany Gmbh

Kpss-Kao Professional Salon Services Gmbh

Fariba Ghiasi

Bernd Nöcker

Steven Breakspear

Anna Neu

Bernd Noecker

Jonathan Wood

Dominic Pratt

Sandra Schmelz

Peter Bauer

Martin Uellner

Masahiko Watanabe

Anja Aechtner

Niu Jian

Fumina Abo

Qi Uellner

Julia Harrèus

Anne Neu

Takeshi Lizaki

A method for dyeing keratin fibers, including mixing an aqueous dyeing composition containing a dye compound which is an anionic azo dye, a non-ionic azo dye, a salt thereof, or a mixture thereof, and an alkalizing agent having at least one basic functional group whose conjugated acid has a pKa value in a range of 6.0 to 8.0, with a second aqueous composition having a pH in a range of 1 to 6 to yield a ready-to-use composition having a pH in a range of 7 to 12. The method further includes applying the ready-to-use composition onto the keratin fibers and leaving it for a time period in a range of 1 min to 60 min, and rinsing-off the keratin fibers. The alkalizing agent is triethanolamine, 2-[4-(2-hydroxyethyl)-piperazin-1-yl]-ethane-1-sulfonic acid, a salt thereof, or a mixture thereof.

Dyeing method for keratin fibers comprising a direct azo-dye and an organic alkalizing agent, and kit-of-parts thereof

A dyeing composition for keratin fibers, including one or more first direct dyes selected from HC Blue 18, HC Red 18, HC Yellow 16, and salts thereof, one or more second direct dyes selected from Disperse Black 9, Acid Yellow 1, 2-amino-6-chloro-4-nitrophenol and salts thereof, and one or more alkalizing agents.

Hair dyeing composition with improved durability

A dyeing composition for keratin fibers, containing one or more alkalizing agents, one or more direct dyes, and one or more compounds selected from the following groups:

Dyeing composition comprising direct dyes

A dyeing composition for keratin fibers, including one or more direct dyes selected from HC Blue 18, HC Red 18, HC Yellow 16, and salts thereof, and tris-(hydroxymethyl)-aminomethane and salts thereof. A method for dyeing keratin fibers, including mixing the composition with a second aqueous composition having a pH in a range of 1 to 6 and optionally including one or more oxidizing agents to yield a ready-to-use composition having a pH in a range of 7 to 12, applying the ready-to-use composition onto the keratin fibers and leaving it for a time period in a range of 1 min to 60 min, and rinsing-off the keratin fibers and optionally shampooing the keratin fibers.

Dyeing composition for keratin fibers comprising a direct dye and an organic alkalizing agent, method for dyeing; and kit-of-parts thereof

The present invention is directed to a dyeing composition, method, use and kit thereof, which improves dyeing using specific direct dyes. The inventive composition comprises benzyl alcohol, and a thickening polymer.

Dyeing composition, method, use, and kit-of-parts thereof

The present invention relates to a method of coloring keratin fibers, especially human hair, which delivers intensive, long lasting, brilliant colors and provides improved grey coverage. Kit therefore is disclosed as well. The method of colouring hair involves treating hair prior to colouring with an alkaline reducing agent.

Method for colouring keratin fibers

The present invention relates to a hair dyeing composition comprising select hair direct dyes and a reducing agent in order to color hair homogeneously, intensively and durably.

Hair dyeing composition

A composition and method oxidative colors hair based on at least one oxidative dye precursor and comprises at least one fatty acid soap, preferably selected from sodium, potassium soaps and their mixtures. The composition is preferably applied onto hair as foam from a non-aerosol foamer vessel after mixing with a composition comprising at least one oxidizing agent.

Composition and method for colouring hair

The present invention relates to the use of alkanolamines for thickening oxidative coloring compositions. More particularly, the present invention relates to the use of alkanolamines for thickening ready to use oxidative coloring composition based on mixing two compositions wherein one comprises at least one oxidative dyeing precursor and the other comprises as least one oxidizing agent.

Use of alkanolamines for thickening oxidative colouring emulsion

This invention relates to a pre-treatment composition comprising at least one organopolysiloxane especially polysilicone-9 and to a process for application of the said composition, which has an acidic pH and is applied to hair, especially damaged hair, prior to hair colouration in order to improve the color intensity and at the same time to achieve durable hair color. pH of the pre-treatment compositions is from 2 to 7.

Growing community of inventors

Frankfurt-am-Main, Germany

Fariba Ghiasi