Product for improved permanent waving of hair and simultaneously

Details Product for improved permanent waving of hair and simultaneously Product for improved permanent waving of hair and simultaneously

1990-11-13

1992-03-10

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dyeing involving animal-derived natural fiber material ,...

Hair dyeing

8406, 8407, 8409, 8432, 132201, 132208, 25230116, 424 70, A61K 713

Patent

active

050946625

ABSTRACT:
By combining a fluoroscein-based dye with a mercaptan based permanent waving composition and maintaining the pH of the resulting composition between about 2.5 and 4.5, a composition is achieved which simultaneously colors and permanently waves the hair. In addition, even if no coloring or dyeing of the hair is desired, the use of a colorless or complimentary fluoroscein-based dye with the mercaptan based permanent waving composition achieves a composition which imparts a substantially improved curl configuration to the hair as well as substantially longer lasting curls. Preferably, the mercaptan based permanent waving composition employed comprises an ester of either thioglycolic acid, thiolactic acid, or the amide of 2-aminoethanethiol.

REFERENCES:
patent: 3989447 (1976-11-01), Kalopissis et al.
patent: 4027008 (1977-05-01), Sokol
patent: 4048338 (1977-09-01), Gerecht
patent: 4781724 (1988-11-01), Wajaroff et al.
patent: 4787911 (1988-11-01), Sebaz et al.
patent: 4932977 (1990-06-01), Schultz

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