Claims
- 1. An aqueous dye composition for dyeing hair which does not dye the skin comprising:
- (1) at least one water soluble dye precursor of the formula ##STR3## wherein R.sub.1, R.sub.2 can be the same or different and are:
- H, alkyl or 1-4C, NH.sub.2, OH, COOR' wherein R' is alkyl of 1-4C or H, CONH.sub.2, halogen, OR" wherein R" is alkyl of 1-4C, CH.sub.2 OH, CH.sub.2 NH.sub.2, CONR'R" wherein R' and R" can be the same or different;
- R.sub.3 is H or alkyl of 1-4C or COR";
- R.sub.4, R.sub.5 can be the same or different and are:
- H, alkyl of 1-4C, NH.sub.2, OH, COOH, CONH.sub.2, halogen, OR", NO.sub.2, SO.sub.3, HNR", or NR"R";
- (2) an alkali metal or alkaline earth metal salt of iodate or periodate;
- (3) at least one organic dye dispersing agent that is compatible with the dye precursor used and will not react with the iodate or periodate oxidant; and
- (4) water.
- 2. A dye composition, according to claim 1, wherein said dye precursor has the formula ##STR4## wherein R.sub.1, R.sub.2 can be the same or different and are:
- H, CH.sub.3, C.sub.2 H.sub.5, OH, or halogen;
- R.sub.3 is H, CH.sub.3 or C.sub.2 H.sub.5 ;
- R.sub.4, R.sub.5 can be the same or different and are as defined in claim 1.
- 3. A dye composition, according to claim 1, wherein said dye precursor is dopamine, D-dopa, L-dopa, or D,L-dopa.
- 4. A dye composition, according to claim 1, wherein said dye dispersing agent is selected from the group consisting of 2-isopropyl 5-methyl phenol, acetophenone, 4-ethyl acetophenone, cyclohexanone, 2,4-dimethyl acetophenone, 3,5-dimethyl cyclohexanone, 4-methyl cyclohexanone, ethylbenzoate, benzyl acetate, benzyl propionate, benzyl butyrate, cyclohexanol, 2-methyl cyclohexanol, furfuryl alcohol, hexanol, 2-methyl-1-pentanol, benzyl alcohol, .alpha.,.alpha.,dimethyl benzyl alcohol, .alpha.-propyl benzyl alcohol, DL-.alpha. methyl benzyl alcohol, 2-benzyloxyethanol, 2-benzyloxypropanol, 2-benzyloxybutanol, ethylene glycol phenyl ether, butyrolactone, 1,2-propylene glycol carbonate, ethylene carbonate, tetramethylene sulfone, butadiene sulfone, tetrahydro thiophene dioxide, 1-n-dodecylazacycloheptan-2-one, and ethylene glycol sulfite.
- 5. A dye composition, according to claim 1, wherein said hair is gray or white hair.
- 6. A dye composition, according to claim 1, wherein said dye dispersing agent is present at a concentration of about 0.1 to about 30 wt/vol%; said dye precursor is at a concentration of about 0.1 to about 10 wt/vol% to the dye composition; and said alkali metal or alkaline earth metal salt of iodate or periodate is at a concentration of about 0.1 to about 5 wt/vol%.
- 7. A dye composition, according to claim 1, wherein a thickener is present to minimize dripping from the hair.
- 8. A dye composition, according to claim 7, wherein said thickener is polyethylene glycol-150 distearate.
- 9. A dye composition, according to claim 1, wherein a color modifier, or a mixture thereof, selected from the group consisting of 4-methylcatechol, 3,4-dihydroxybenzoic acid, 3,4-dihydroxybenzaldehyde, 4-bromocatechol, catechol, 4-methoxycatechol, m-aminophenol, resorcinal, cysteine, glutathione, mercaptoacetic acid, and lysine is present.
- 10. A dye composition, according to claim 9, wherein said color modifier is catechol or cysteine.
- 11. A dye composition, according to claim 1, wherein potassium or ammonium persulfate is present.
- 12. A dye composition, according to claim 1, wherein a stabilizer is present if the dopamine dye precursor is in solution.
- 13. A dye composition, according to claim 1, wherein said dye dispersing agent is benzyl alcohol.
- 14. A dye composition, according to claim 1, wherein said dye dispersing agent is ethylene carbonate.
- 15. A process for dyeing hair which does not dye the skin and which comprises contacting hair with a dye composition comprising:
- (1) at least one water soluble dye precursor of the formula ##STR5## wherein R.sub.1, R.sub.2 can be the same or different and are:
- H, alkyl of 1-4C, NH.sub.2, OH, COOR' wherein R' is alkyl of 1-4C or H, CONH.sub.2, halogen, OR" wherein R" is alkyl of 1-4C, CH.sub.2 OH, CH.sub.2 NH.sub.2, CONR'R" wherein R' and R" can be the same or different;
- R.sub.3 is H or alkyl or 1-4C or COR";
- R.sub.4, R.sub.5 can be the same or different and are:
- H, alkyl of 1-4C, NH.sub.2, OH, COOH, CONH.sub.2, halogen, OR", NO.sub.2, SO.sub.3, HNR", or NR"R";
- (2) an alkali metal or alkaline earth metal salt of iodate or periodate;
- (3) at least one organic dye dispersing agent that is compatible with the dye precursor used and will not react with the iodate or periodate oxidant; and
- (4) water for about 20 min to about 60 min, and rinsing the dyed hair.
- 16. A process, according to claim 15, wherein said dye dispersing agent is selected from the group consisting of 2-isopropyl 5-methyl phenol, acetophenone, 4-ethyl acetophenone, cyclohexanone, 2,4-dimethyl acetophenone, 3,5-dimethyl cyclohexanone, 4-methyl cyclohexanone, ethylbenzoate, benzyl acetate, benzyl propionate, benzyl butyrate, cyclohexanol, 2-methyl cyclohexanol, furfuryl alcohol, hexanol, 2-methyl-1-pentanol, benzyl alcohol, .alpha.,.alpha.,dimethyl benzyl alcohol, .alpha.-propyl benzyl alcohol, DL-.alpha. methyl benzyl alcohol, 2-benzyloxyethanol, 2-benzyloxypropanol, 2-benzyloxybutanol, ethylene glycol phenyl ether, butyrolactone, 1,2-propylene glycol carbonate, ethylene carbonate, tetramethylene sulfone, butadiene sulfone, tetrahydro thiophene dioxide, 1-n-dodecylazacycloheptan-2-one, and ethylene glycol sulfite.
- 17. A process, according to claim 15, wherein said dye composition comprises
- (1) said dye precursor at a concentration of about 0.1 to about 10 wt/vol% to the dye composition;
- (2) said alkali metal or alkaline earth metal salt of an iodate or periodate at a concentration of about 0.1 to about 5 wt/vol%; and
- (3) said dye dispersing agent at a concentration of about 0.1 to about 30 wt/vol%.
- 18. A process, according to claim 15, wherein said dye precursor is dopamine, D-dopa, L-dopa, or D,L-dopa.
- 19. A process, according to claim 15, wherein a thickener to minimize dripping from the hair is added to the dye composition.
- 20. A process, according to claim 19, wherein said thickener is polyethylene glycol-150 distearate.
- 21. A process, according to claim 15, wherein a color modifier, or a mixture thereof, selected from the group consisting of 4-methylcatechol, 3,4-dihydroxybenzoic acid, 3,4-dihydroxybenzaldehyde, 4-bromocatechol, catechol, 4-methoxycatechol, m-aminophenol, resorcinol, cysteine, glutathione, mercaptoacetic acid, and lysine is added to the dye composition.
- 22. A process, according to claim 21, wherein said color modifier is catechol or cysteine.
- 23. A process, according to claim 15, wherein a stabilizer is added to the dye composition if the dopamine dye precursor is in solution.
- 24. A process, according to claim 15, wherein said dye dispersing agent is benzyl alcohol.
- 25. A process, according to claim 15, wherein said dye dispersing agent is ethylene carbonate.
CROSS REFERENCE TO RELATED APPLICATION
This application is a continuation of application Ser. No. 828,129 filed 2/11/86 abandoned which is a continuation-in-part of application Ser. No. 664,113 filed Oct. 22, 1984 abandoned which is a continuation-in-part of application Ser. No. 598,466 filed 4/9/84 abandoned.
US Referenced Citations (6)
Foreign Referenced Citations (4)
Number |
Date |
Country |
2455376 |
Jun 1975 |
DEX |
0032132 |
Mar 1978 |
JPX |
0104741 |
Sep 1978 |
JPX |
0110337 |
Aug 1979 |
JPX |
Non-Patent Literature Citations (3)
Entry |
The Merck Index, 10th ed., 1983 (7897). |
Cosmetics Science and Technology, 2nd ed., vol. 2, p. 298 (1972). |
Crebelli, R. et al. (1981) "Mutagenicity of Commercial p-Phenylenediamine and of an Oxidation Mixture of p-Phenylenediamine and Resorcinol in Salmonella typhimurium TA98" Fd. Cosmet. Toxicol. 19:79-84. |
Continuations (1)
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Number |
Date |
Country |
Parent |
828129 |
Feb 1986 |
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Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
664113 |
Oct 1984 |
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Parent |
598466 |
Apr 1984 |
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