Kpss-kao Professional Salon Services Gmbh

Ruediger Wilz

Bernd Noecker

Heribert Lorenz

Klaus Kaffenberger

Jonathan Wood

Frank Kufner

This invention relates to a hair dyeing composition comprising at least one anionic and at least one cationic direct acting hair dyes and showing excellent dyeing ability and excellent resistance to hair washing and environmental influences. The coloring composition of this invention are ready to use coloring composition and, therefore, do not require any mixing prior to application with additional agents such as oxidizers. According to the invention the preferred cationic dyestuffs are selected from the following structures wherein R, R, Rand Rstand for hydrogen, a CH&#x2014; or CH&#x2014; group, and Y is an anion such as chloride, bromide, methosulfate.

Composition for dyeing keratin fibres

The present invention concerns a pre-treatment composition comprising dihydroxyacetone (DHA) for oxidative coloring keratin fibers especially human hair and a coloring process therefore.

Pre-treatment composition for oxidative coloring keratin fibres and process therefore

Hair dyeing composition on the basis of an oxidation dyestuff precursor reacting with peroxide, comprising at least one developing and/or coupling substance selected from the group

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Pfungstadt, Germany

Ruediger Wilz