Agents for colouring keratin fibres comprising zwitterionic...

Details Agents for colouring keratin fibres comprising zwitterionic... Agents for colouring keratin fibres comprising zwitterionic...

A - Human Necessities

61

K

A61K 8/49 (2006.01) A61Q 5/06 (2006.01) A61Q 5/10 (2006.01)

Patent

CA 2649727

The present invention relates to agents for colouring keratin fibres which comprise at least one zwitterionic azomethine dye of the general formula (I), (II) or (III) in which z is a heterocycle of the formula (IV), (V), (VI), (VII), (VIII), (IX), (X), (XI), (XII) in which R8 is an alkyl sulfonate radical of the formula (XIII);

La présente invention porte sur des agents de coloration de fibres de kératine qui comprennent au moins un colorant azométhine zwitterionique de formule générale (I), (II) ou (III) dans laquelle z est un hétérocycle de formule (IV), (V), (VI), (VII), (VIII), (IX), (X), (XI), (XII) dans laquelle R8 est un radical sulfonate d'alkyle de formule (XIII).

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