Hair dyeing composition and method

1. A method of dyeing hair on a person's head to impart a temporary hair coloring thereto comprising treating the hair with a temporary hair coloring composition comprising 0.1 to 15% of at least one inorganic colored pigment, 0.05 to 10% of a nonvolatile dimethicone copolyol having from 1 to about 30 moles ethylene oxide and from about 10 to about 50 moles propylene oxide, and water, and rinsing excess composition from the hair with water.

2. The method of claim 1 wherein the hair is first shampooed, the treatment is effected on the damp hair, and the hair is blow dried after the water rinse.

3. The method of claim 1 wherein the inorganic colored pigment is selected from the group consisting of iron oxide, chromium oxide green, ferric blue, carbon black, manganese violet, ultramarines, and combinations thereof.

4. The method of claim 3 wherein the inorganic colored pigment is selected from the group consisting of iron oxide, ultramarines, and combinations thereof.

5. The method of claim 4 wherein the inorganic colored pigment is an iron oxide selected from the group of red, yellow and black iron oxides.

6. The method of claim 1 wherein the dimethicone copolyol is present in the composition in an amount of from about 0.1 to 5%.

7. The method of claim 1 wherein the dimethicone copolyol has from 10 to 25 moles ethylene oxide and 15 to 30 moles propylene oxide.

8. The method of claim 7 wherein the dimethicone copolyol is selected from the group consisting of PEG/PPG-18/18 dimethicone, PEG/PPG-15/15 dimethicone, PEG/PPG-20/23 dimethicone, PEG/PPG-20/15 dimethicone, PEG-PPG-19/19 dimethicone, lauryl PEG/PPG-18/18 methicone, and mixtures thereof.

9. The method of claim 1 wherein the temporary hair coloring composition further comprises a cationic deposition aid present in an amount of from about 0.05 to 10%.

10. The method of claim 9 wherein the cationic deposition aid is selected from the group consisting of quaternary ammonium compounds and cationic polymers, the cationic deposition aid being present in an amount of from about 0.1 to 5%.

11. The method of claim 10 wherein the temporary hair coloring composition further comprises a volatile silicone, said composition being in the form of a water-in-silicone emulsion wherein the silicone phase comprises 10 to 50% by weight of the composition.

12. The method of claim 11 wherein the temporary hair coloring composition contains 1 to 5% iron oxide pigment and 0.05 to 2.5% dimethicone copolyol having 10 to 25 moles ethylene oxide and 15 to 25 moles propylene oxide.

13. The method of claim 10 wherein the temporary hair coloring composition is in the form of an aqueous suspension containing 1 to 5% iron oxide pigment and 0.05 to 2.5% dimethicone copolyol having 10 to 25 moles ethylene oxide and 15 to 25 moles propylene oxide.

14. The method of claim 1 wherein the temporary hair coloring composition is in the form of a water-in-silicone emulsion containing 1 to 5% iron oxide pigment and 0.05 to 2.5% dimethicone copolyol having 10 to 25 moles ethylene oxide and 15 to 25 moles propylene oxide, wherein the silicone phase comprises 10 to 50% by weight of the composition.

15. The method of claim 11 wherein the cationic deposition aid is a quaternary ammonium compound of the chemical formula

wherein:

R 3 (i) is a saturated or unsaturated, branched or nonbranched alkyl with 8 to 22 carbon atoms; (ii) has the structure R 7 CONH(CH 2 ) n wherein R 7 is a saturated or unsaturated, branched or nonbranched alkyl with 7 to 21 carbon atoms and n has a typical value of 1-4; or (iii) has the structure R 8 COO(CH 2 ) n wherein R 8 is a saturated or unsaturated, branched or nonbranched alkyl with 7 to 21 carbon atoms and n has a typical value of 1-4;

R 4 (i) is H or a unsaturated or saturated, branched or nonbranched alkyl with 8 to 22 carbon atoms; (ii) has the structure R 7 CONH(CH 2 ) n , or (iii) has the structure R 8 COO(CH 2 ) n wherein R 7 and R 8 and n are same as above;

R 5 and R 6 are individually hydrogen or an alkyl of an integer of 1 to 4 carbon atoms, and X is an anion, for example a halide such as a chloride, sulfate or methosulfate.

16. The method of claim 7 wherein the inorganic colored pigment is selected from the group consisting of iron oxide, chromium oxide green, ferric blue, carbon black, manganese violet, ultramarines, and combinations thereof.

17. The method of claim 16 wherein the inorganic colored pigment is selected from the group consisting of iron oxide, ultramarines, and combinations thereof.

18. The method of claim 17 wherein the inorganic colored pigment is an iron oxide selected from the group of red, yellow and black iron oxides.

19. The method of claim 7 wherein the dimethicone copolyol is admixed with cyclomethicone, the weight ratio of the dimethicone copolyol to the cyclomethicone being from 95:5 to 5:95.

20. The method of claim 19 wherein the dimethicone copolyol is present in the composition in an amount of from about 0.1 to 5%.

21. The method of claim 7 wherein the temporary hair coloring composition is in the form of a water-in-silicone emulsion wherein the silicone phase comprises 10 to 50% by weight of the composition.

22. The method of claim 21 wherein the temporary hair coloring composition contains 1 to 5% iron oxide, and 0.05 to 10% cationic deposition aid.

23. The method of claim 1 wherein the temporary hair coloring composition is in the form of an aqueous suspension containing 1 to 5% iron oxide, 0.05 to 2.5% dimethicone copolyol having 10 to 25 moles ethylene oxide and 15 to 25 moles propylene oxide, and 0.05 to 10% cationic deposition aid.

24. The method of claim 1 wherein the temporary hair coloring composition is in the form of a water-in-silicone emulsion containing 1 to 5% iron oxide, 0.05 to 2.5% dimethicone copolyol having 10 to 25 moles ethylene oxide and 15 to 25 moles propylene oxide, and 0.05 to 10% cationic deposition aid, wherein the silicone phase comprises 10 to 50% by weight of the composition.