COMPOSITION CONTAINING MIXED DYESTUFF BASED UPON AT LEAST ONE CHROMOPHORIC GROUP OF AZO-TYPE OR OF TRI(HETERO) ARYL METHANE-TYPE, DYEING TEQUENIQUE, AND MIXED DYESTUFF

摘要

PROBLEM TO BE SOLVED: To provide such a composition for use in dyeing as contains a mixed dyestuff which is based upon at least one chromophoric group of an azo-type or of a tri(hetero)aryl methane-type.

SOLUTION: The composition for use in the dyeing contains one mixed dyestuff comprising at least two different chromophoric groups in the medium suitable for the dyeing of a keratin fiber, especially of a human keratin fiber. The mixed dyestuff is a compound having at least one chromophoric group selected from the chromophoric group of an azo-compound family and that of a tri(hetero)aryl methane family, the chromophoric group being bound with each other through the at least one linker stopping the delocalization of electrons in each chromophoric group, for example, a compound expressed by the formula in the figure.

COPYRIGHT: (C)2008,JPO&INPIT