M-aminophenol-free hair-colouring compositions
Disclosed are m-aminophenol-free hair-colouring compositions comprising a mixture of dyes consisting of methoxymethyl-p-phenylenediamine, hydroxyethyl-3,4-methylenedioxyaniline and 5-amino-6-chloro-o-cresol, an alkalising agent, and optionally other oxidative dyes, provided that they are not p-phenylenediamine or p-toluenediamine The compositions according to the invention provide stable colours that do not change with time.
1. m-aminophenol-free hair-colouring composition comprising methoxymethyl-p-phenylenediamine, hydroxyethyl-3,4-methylenedioxyaniline and 5-amino-6-chloro-o-cresol, an alkalising agent, and optionally other oxidative dyes, with the proviso that they are not p-phenylenediamine or p-toluenediamine.
2. A composition according to claim 1 further comprising one or more direct dyes.
3. A composition according to claim 1 wherein the optional other oxidative dyes do not include resorcinol or derivatives thereof.
4. A composition according to claim 1 wherein the alkalising agent is selected from ammonia, monoethanolamine, 1-amino-2-propanol, 2-amino-2-methyl-propanol, 2-amino-2-methyl-1,3-propanediol, 2-amino-2-ethyl-1,3-propanediol, tris (hydroxymethyl)-aminomethane, sodium hydroxide, potassium hydroxide, urea, allantoin, arginine, tripotassium phosphate, sodium saccharine, triethanolamine or combinations thereof, in amounts ranging from 0.1 to 20% by weight.
5. A composition according to claim 1 wherein methoxymethyl-p-phenylenediamine, hydroxyethyl-3,4-methylenedioxyaniline and 5-amino-6-chloro-o-cresol are each present in a weight percentage ranging from 0.01 to 6%.
6. A composition according to claim 1 further comprising solvents, surfactants, emulsifiers, wetting agents, thickeners or conditioners.
7. A composition according to claim 1 in a ready-to-use form.
8. A composition according to claim 1 further containing isoamyl laurate.