Claims
- 1. A process for treating keratinous material in which disulfide linkages have been ruptured to form sulfhydryl groups by the action of a reducing agent which comprises contacting said keratinous material with cystamine in a carrier at a pH in the range of from about 6 to about 9 to crosslink sulfhydryl groups.
- 2. The process as claimed in claim 1 wherein the keratinous material is human hair.
- 3. The process as recited in claim 1 wherein the cystamine is used in an amount effective to crosslink an amount of sulfhydryl groups sufficient to set the keratinous material.
- 4. The process as recited in claim 1 wherein the cystamine is used in a concentration ranging from about 0.1% to about 10% weight per volume.
- 5. A process which comprises treating hair with a reducing agent until a substantial portion of disulfide groups of the hair are converted to sulfhydryl groups and, while maintaining the hair in a fixed position, contacting the hair with cystamine in an amount and under conditions sufficient to set the hair.
- 6. A process which comprises contacting human hair, while the hair is mechanically maintained in a suitable condition of curl, with an amount of a reducing agent capable of rupturing disulfide linkages in the hair and a hair setting amount of cystamine.
- 7. The method of claim 6 wherein the human hair is simultaneously contacted with the reducing agent and cystamine.
CROSS REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of application Ser. No. 069,929, filed July 6, 1987, in the name of P. Siuta-Mangano entitled CROSSLINKING REAGENTS USEFUL IN TREATING HAIR.
US Referenced Citations (8)
Non-Patent Literature Citations (2)
Entry |
Sagarin, E.; "Cosmetics, Science & Technology", vol. 2, p. 230 (1972); Wiley Interscience. |
Zviak, C.; "Science of Hair Care", vol. 7, pp. 183-212, Marcel Dekker, Inc. (1986), Series Entitled Dermatology. |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
069929 |
Jul 1987 |
|