Abstract:
Dyes, containing N-benzyl-p-phenylenediamine derivatives of the general formula (I) or their physiologically compatible salts, for keratin fibers, and new N-benzyl-p-phenylenediamine derivatives.
Abstract:
The present invention has for an object agents for the simultaneous brightening and coloring of keratin fibers—particularly hair—which are characterized in that (a) they contain an oxidant and (b) at least one thiazolium dye of formula (I) and that (c) they have a basic pH
Abstract:
The present invention has for an object brightening cationic naphthalene dyes of formula (I) and colorants for keratin fibers, particularly human hair, containing these compounds
Abstract:
The object of the present invention are (3,5-diaminophenyl)(2,4-dihydroxyphenyl)methanone and the acid adducts thereof of formula (I), with 0≦n≧2 and HX denoting an inor-ganic or organic acid, the colorant containing these compounds and a method for producing the compounds of formula (I).
Abstract:
The agent for coloring keratin fibers, especially human hair, contains at least one common cosmetic additive; an oxidant, such as hydrogen peroxide; and at least one naphthalene derivative of formula (I): wherein A1 and A2 are different from each other and, independently of each other, each denote a partial structure of formula (II), (IIIa), (IIIb), (IV), (V), or (VI): E is O or S; Y is N or a quaternary nitrogen atom substituted with a C1-C6-alkyl group, a C2-C4-hydroxyalkyl group, or a C4-C6-polyhydroxyalkyl group. New naphthalene derivatives are also described.
Abstract:
The present invention has for an object agents for coloring keratin fibers and containing at least one indolylthiazoliumazo dye of general formula (I)
Abstract:
The present patent application has for an object an agent for the simultaneous brightening and coloring of keratin fibers based on a coupler-developer combination that has a basic pH and contains as developer at least one heterocyclic hydrazone derivative of formula (I) or a physiologically compatible salt thereof, at least one common coupler and as oxidant at least one combination of persulfate salts and hydrogen peroxide or an addition compound thereof; a multicomponent kit and a method for coloring keratin fibers.
Abstract:
The present invention has for an object agents for dyeing keratin fibers, characterized in that they contain at least one thiazoliumazo dye of general formula (I)
Abstract:
The present invention has for an object agents for the simultaneous brightening and dyeing of keratin fibers—particularly hair—characterized in that they contain a) at least one oxidant and (b) at least one indolylthiazoliumazo dye of formula (1) and that, (c) they have a basic pH