Hair Colouring Composition

Abstract

Present invention relates to a composition for oxidative colouring hair based on oxidative dye precursors and coupling substances further comprises at least one branched fatty alcohol, at least one non-ionic emulsifier and at least one compound according to the formula

Description

EXAMPLE 1

% by weight
Octyldodecanol                   10.0
Propylene glycol                 4.0
Ceteareth-30                     5.0
Stearamidopropyldimethylamine    5.0
Polysilicone-9                   0.1
Panthenol                        0.5
Sodium sulfit                    0.5
Ascorbic acid                    0.2
Tetrasodium EDTA                 0.2
Fragrance, preservative          q.s
Ethanolamine                     0.3
p-toluenediamine sulfate         0.43
2,5,6-triamino-4-pyrimidinol sulphate 0.01
Resorcinol                       0.01
m-aminophenol                    0.07
2-amino-3-hydroxypyridine        0.03
4-amino-m-cresol                 0.02
Water                            q.s. to 100

The above composition was mixed with a composition comprising hydrogen peroxide at a concentration of 2% by weight at a weight ratio of 1:1 which was resulted in a pH value of 6.9 and was applied onto a twice bleached hair. After processing of 30 min at 30° C. the hair was rinsed with tap water and shampooed once with a commercial shampoo and dried with a hair drier. A shiny warm homogeneous colour was obtained. The L, a and b values measured at the root and tip parts as identified on the tress used were not significantly differing from each other showing clearly that hair is homogeneously coloured. In addition the hair feel soft and smooth upon touching and was easily combed through.

EXAMPLE 2

% by weight
Octyldodecanol                   10.0
Ceterayl alcohol                 2.0
Propylene glycol                 4.0
Ceteareth-30                     5.0
Stearamidopropyldimethylamine    4.0
Cetyltrimonium chloride          1.0
Polysilicone-9                   0.1
Panthenol                        0.5
Sodium sulfit                    0.5
Ascorbic acid                    0.2
Tetrasodium EDTA                 0.2
Fragrance, preservative          q.s
Ethanolamine                     0.3
p-toluenediamine sulfate         0.43
2,5,6-triamino-4-pyrimidinol sulphate 0.01
Resorcinol                       0.01
m-aminophenol                    0.07
2-amino-3-hydroxypyridine        0.03
4-amino-m-cresol                 0.02
Water                            q.s. to 100

The above composition was mixed with a composition comprising hydrogen peroxide at a concentration of 2% by weight at a weight ratio of 1:1 which was resulted in a pH value of 6.9 and was applied onto a twice bleached hair. After processing of 30 min at 30° C. the hair was rinsed with tap water and shampooed once with a commercial shampoo and dried with a hair drier. A shiny warm homogeneous colour was obtained. The L, a and b values measured at the root and tip parts as identified on the tress used were not significantly differing from each other showing clearly that hair is homogeneously coloured. In addition the hair feel soft and smooth upon touching and was easily combed through.

Claims

1. Composition for oxidative colouring hair based on oxidative dye precursors and coupling substances characterised in that it comprises at least one branched fatty alcohol, at least one non-ionic emulsifier and at least one compound according to the formula

2. Composition according to claim 1 characterised in that at least one branched fatty alcohol is chosen from octyldecanol, octyldodecanol, isocetyl and isostearyl alcohols.

3. Composition according to claim 1 characterised in that at least one non-ionic emulsifier is a fatty alcohol ethoxylate.

4. Composition according to claim 1 characterised in that the compound according to the formula in claim 1 is chosen from stearamidopropyldimethylamine, palmitamidopropyldiethylamine, palmitamidopropyldimethylamine, behenamidopropyldimethylamine and/or their salts.

5. Composition according to claim 1 characterised in that it comprises at least one direct dye.

6. Composition according to claim 1 characterised in that it comprises additional fatty alcohol

7. Composition according to claim 1 characterised in that it comprises at least one cationic surfactant of the following formula

8. Composition according to claim 1 characterised in that it comprises at least one organopolysiloxane wherein at least one silicium atom is linked to an alkylene group having a hetero-atom, in particular a nitrogen atom, with a poly-(N-acyl alkyleneimine) units of the formula

9. Process for colouring hair wherein a composition according to claim 1 is mixed with an oxidizing composition comprising at least one oxidizing agent, preferably hydrogen peroxide and applied onto hair and processed for 10 to 45 min at a temperature of 20 to 45° C. and rinsed off from hair.

10. (canceled)