Composition for colouring hair

Abstract

The composition provides hair colourings stable and brilliant at various pH values and also resistant to washing.

1 . A hair coloring composition comprising a mixture of blue dyes comprising:
 a dye having the following formula (I) and a dye having the following formula (II):   
       
         
           
           
               
               
           
         
       
       wherein,
 in formula (I): 
 R 1 , R 2 , R 3  and R 4  can be a hydrogen, an alkyl group from C 1  to C 10 , linear, branched, saturated or unsaturated or an aryl group; when each of the R 1 -R 4  groups is a C 1 -C 10  alkyl chain, this can be substituted by one or more amino, imino, hydroxyl and aldehyde groups, and/or this chain can contain one or more nitrogen groups, optionally substituted by a C 1 -C 6  alkyl group, linear or branched, saturated or unsaturated; oxygen, keto; R 5  is hydrogen or a C 1 -C 6  alkoxy group, linear or branched, saturated or unsaturated, R 6  is hydrogen or a linear or branched alkyl group in which hydroxyl groups or amino groups can be present, said amino groups optionally substituted with an alkyl from 1 to 4 atoms of carbon, 
 A is a cosmetically acceptable anion; 
 in formula (II):
 R 7 , R 8  and R 9  are independently hydrogen, an alkyl group from C 1  to C 10 , linear or branched, saturated or unsaturated, an aryl group, a cyano group; when each of the R 7 -R 9  groups is a C 1 -C 10  alkyl chain, this can be optionally substituted by one or more amino, imino, hydroxyl and aldehyde groups, and/or said chain can optionally contain one or more nitrogen groups, optionally substituted by a C 1 -C 6  alkyl group, linear or branched, saturated or unsaturated; oxygen, keto; and their cosmetically acceptable salts, 
 with the proviso that when R 8  is H, R 7  and R 9  are not both selected from CH 2 CH 2 OH and CH 2 CH 2 CH 2 OH. 
 
 
     
     
         2 . The hair coloring composition of  claim 1 , wherein, in the compounds of formula (I), R 1  and R 2  are independently hydrogen, methyl or phenyl, and R 3  and R 4  are independently hydrogen or saturated alkyl from C 1  to C 6 . 
     
     
         3 . The hair coloring composition of  claim 1 , wherein, in the compounds of formula (II) each of R 7 , R 8  and R 9  is independently hydrogen, methyl or linear alkyl containing one or more amino groups, optionally substituted with an alkyl from 1 to 4 atoms of carbon, or one or more hydroxyl groups. 
     
     
         4 . The hair coloring composition of  claim 3 , wherein R 8  is hydrogen or a cyano group. 
     
     
         5 . The hair coloring composition of  claim 1 , wherein the dyes of formula (I) and formula (II) are independently selected from one of the following formulas: 
       
         
           
           
               
               
           
         
       
     
     
         6 . The hair coloring composition of  claim 5 , wherein the dye of formula (I) is Basic Blue 124 with the formula 
       
         
           
           
               
               
           
         
         and the dye of formula (II) is HC Blue 16 with the formula 
       
       
         
           
           
               
               
           
         
       
     
     
         7 . The hair coloring composition of  claim 1 , wherein the physiologically acceptable salt is selected from the group consisting of sulfate, hydrochloride and phosphate. 
     
     
         8 . The hair coloring composition of  claim 1 , wherein the total amount of dyes of formula (I) and (II) varies from about 0.0005 to about 20% by total weight of the composition. 
     
     
         9 . The hair coloring composition of  claim 1 , further comprising further a non-blue hair dyes. 
     
     
         10 . The hair coloring composition of  claim 9 , wherein the non-blue dye is selected from the group consisting of direct dyes, oxidative dyes, natural dyes and combinations thereof. 
     
     
         11 . The hair coloring composition of  claim 1 , further comprising potassium ethylhexyl/isotrideceth-8 phosphate. 
     
     
         12 . The hair coloring composition of  claim 1 , further comprising one or more of the following components: a pH corrector, pigments, natural or synthetic additives, non-ionic and/or anionic surfactants or emulsifiers, humectants, thickeners, conditioning agents, protein derivatives, pro-vitamins, vitamins, plant extracts, sugar, betaines and auxiliary agents. 
     
     
         13 . The hair coloring composition of  claim 1 , manufactured as a ready-to-use product and which further comprises:
 a. an oxidising dye; or   b. an oxidising dye and an activator for said oxidising dye.   
     
     
         14 . Cosmetic hair coloring product comprising the hair coloring composition of  claim 1 . 
     
     
         15 . Product  claim 14 , which is in the form of or manufactured as a mask, a shampoo, an activator, a neutraliser with hydrogen peroxide, a dye, or a composition for hair styling. 
     
     
         16 . Kit for preparing a ready-to-use composition for cosmetic hair treatment comprising the hair coloring composition of  claim 1  and a cosmetic hair product. 
     
     
         17 . The kit of  claim 16  wherein said cosmetic hair product comprises a cosmetic product for dyeing hair, a hair care product, a hair styling product, an activator or a neutralizer with hydrogen peroxide,
 wherein optionally the hair care product comprises a mask or a shampoo. 
 
     
     
         18 . Method for dyeing hair comprising direct application of the hair coloring composition of  claim 1 . 
     
     
         19 . Method for dyeing hair comprising the following steps:
 c. mixing the hair coloring composition of  claim 1  with a cosmetic hair product;   d. subsequent application to the hair;   e. subsequent rinse;   f. optional washing with shampoo; and, if desired,   g. optional drying.   
     
     
         20 . The method of  claim 18 , wherein said method is performed at alkaline or neutral conditions. 
     
     
         21 . The method of  claim 19 , wherein said method is performed at alkaline or neutral conditions.