Oxidative dyeing composition

Abstract

Present invention relates to an oxidative dyeing composition having especially mild properties to the scalp. The object of the present invention is an oxidative dyeing composition for hair comprising at least one dyestuff and avenathramide and/or its derivative.

Claims

1. An oxidative dyeing composition comprising: at least one dyestuff selected from oxidative dyestuff precursors and direct dyes, and one or both of: avenanthramide and a derivative thereof, wherein the avenanthramide, its derivative, or a mixture thereof is present at a total concentration of 0.0001 to 5% by weight calculated to the total composition.

2. The composition according to claim 1, wherein the composition is an aqueous composition and comprises at least 45% by weight water calculated to the total composition.

3. The composition according to claim 1, further comprising at least one oxidative dyestuff precursor and at least one coupling agent.

4. The composition according to claim 1, said composition comprising at least one direct dye.

5. The composition according to claim 1, comprising an avenanthramide derivative selected from avenanthramide A, avenanthramide B, avenanthramide, dihydroavenanthramide A, dihydroavenanthramide B, dihydroavenanthramide C, hydroxyphenly propamidobenzoic acid, salts thereof, and mixtures thereof.

6. The composition according to claim 1, which comprises hydroxyphenyl propamidobenzoic acid, salts thereof, or mixtures thereof.

7. The composition according to claim 1, which further comprises one or more fatty alcohol and at least one emulsifier.

8. The composition according to claim 1, which further comprises one or more fatty alcohol selected from myristyl alcohol, cetyl alcohol, stearyl alcohol behenyl alcohol and a mixture thereof.

9. The composition according to claim 1, which further comprises at least one emulsifier present at a total concentration in the range of 0.5 to 20% by weight, calculated to the total composition.

10. The composition according to claim 1, having a pH in the range of 6 to 12.

11. The composition according to claim 1, which further comprises at least one alkalizing agent selected from ammonia or ammonium hydroxide and a compound according to the general formula
R.sub.1R.sub.2R.sub.3N wherein R.sub.1, R.sub.2 and R.sub.3 are same or different H, C1-C6 alkyl, C1-C6 monohydroxyalkyl or C2-C6 polyhydroxyalkyl with the condition that at least one of R.sub.1, R.sub.2 and R.sub.3 is a mono or polyhydroxyalkyl.

12. The composition according to claim 11, wherein the at least one alkalizing agent is ammonia or monoethanolamine.

13. A method of colouring hair comprising: (a) mixing a composition according to claim 1 with a second composition comprising at least one oxidizing agent, (b) applying onto hair a mixture obtained from step (a), (c) processing the mixture obtained from step (a) for 1 to 45 min, (d) rinsing the mixture obtained from step (a) off from hair.

14. The composition according to claim 2, comprising water in the range of 50 to 90% by weight calculated to the total composition.

15. The composition according to claim 1, wherein the avenanthramide, its derivative, or mixture thereof is present at a total concentration of 0.001 to 4% by weight calculated to the total composition.

16. The composition according to claim 7, wherein the one or more fatty alcohol is of the general formula
R.sub.4—OH wherein R.sub.4 is a linear or branched, saturated or unsaturated alkyl chain with 12 to 22 C atoms.

17. The composition according to claim 7, wherein the at least one emulsifier is selected from anionic, non-ionic, cationic and amphoteric surfactants.

18. The composition according to claim 8, wherein the one or more fatty alcohol is a mixture of cetyl and stearyl alcohol.

19. The oxidative dyeing composition of claim 1 in the form of an emulsion.

20. The oxidative dyeing composition of claim 1 consisting essentially of: at least one dyestuff selected from oxidative dyestuff precursors and direct dyes, and one or both of: avenanthramide and a derivative thereof, and one or more of optional components (a) through (t): (a) one or more coupling substances, (b) one or more fatty alcohols, (c) one or more emulsifiers and/or surfactants, (d) one or more alkalizing agents, (e) one or more oxidizing agents, (f) one or more organopolysiloxanes, wherein at least one silicon atom is linked to an alkylene group having a hetero-atom, (g) one or more ceramide compounds according to the general formula ##STR00008##  where R.sub.18 and R.sub.19 are independent from each other alkyl- or alkenyl group with 10 to 22 carbon atoms, R.sub.20 is methyl, ethyl, n-propyl or isopropyl group and n is a number between 1 to 6, (h) one or more ubiquinone of the formula ##STR00009##  wherein n is a number from 1 to 10, (i) one or more catalyst for oxidative dyeing of keratin fibers, (j) one or more yogurt powders, (k) one or more hair conditioning compounds, (l) one or more cationic polymer conditioning agents, (m) one or more protein hydrolysates, (n) one or more natural plant extracts, (o) one or more particulate matters, (p) one or more basic substances, (q) one or more conditioning agents, (r) one or more reducing agents, (s) one or more stabilizers for oxidizing agents, and (t) one or more foam preventing agents.

21. An oxidative dyeing composition comprising: (a) at least one dyestuff selected from oxidative dyestuff precursors and direct dyes, (b) one or both of: avenanthramide and a derivative thereof, wherein (b) includes hydroxyphenyl propamidobenzoic acid, salts thereof, or mixtures thereof.

Description

EXAMPLE 1

(1) TABLE-US-00001 % by weight Cetearyl alcohol 10.0 Cocamide MEA 4.0 Sodium lauryl sulphate 1.5 Propylene glycol 2.0 Hydroxyphenyl propamidobenzoic acid 0.1 2,5,6-Triamino-4-hydroxypyrimidinsulfat 0.01 2,5-Diaminotoluolsulfat 0.55 4-Chlorresorcin 0.17 Resorcin 0.05 3-Aminophenol 0.03 Sodium sulfite 1.0 Monoethanolamine 8.0 Fragrance, preservative q.s. Water to 100

(2) For comparative purposes the same composition but not comprising hydroxyphenyl propamidobenzoic acid was also produced. Hydroxyphenyl propamidobenzoic acid was preplaced with water.

(3) The above compositions were tested in a monadic use test for scalp compatibility and mildness. Both compositions were used to dye hair of 30 consumers each having shoulder length hair. The composition was mixed with a composition comprising 6% hydrogen peroxide at a weight ratio of 1 to 1 and applied onto hair and processed for 30 min at a temperature of 40° C. and rinsed off. It was observed that both composition colour hair in the same way to the same colour direction. The following observations were made on scalp irritation.

(4) TABLE-US-00002 No irritation Slight irritation Irritation Inventive composition 24 4 2 Comparative composition 2 13 15

(5) From the above results it is clear that hydroxyphenyl propamidobenzoic acid comprising composition does not cause that much irritation compared to comparative composition without hydroxyphenyl propamidobenzoic acid. The clear conclusion from the above results is that incorporation of hydroxyphenyl propamidobenzoic acid improved mildness of hair dyeing composition and improved scalp compatibility.