Oxidative hair dyeing process with dihydroxybenzenes and aminoet

Details Oxidative hair dyeing process with dihydroxybenzenes and aminoet Oxidative hair dyeing process with dihydroxybenzenes and aminoet

1994-12-12

1996-12-17

Skane, Christine

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8406, 8407, 8408, 8587, A61K 713

Patent

active

055848893

ABSTRACT:
A process of dyeing hair by preparing and applying to the hair an aqueous reaction medium comprising an aminoethanethiol, a dihydroxybenzene and a ferricyanide or persulfate oxidizing agent, the composition optionally containing a color modifier selected from the group consisting of direct dyes, primary intermediates, couplers and mixtures thereof, and also containing a buffer to maintain the pH in the range from 2 to 11 during the oxidation reaction, and removing the aqueous reaction medium from the hair after the desired color is attained, and compositions and kits for practicing such processes.

REFERENCES:
patent: 2944869 (1960-07-01), Kalopissis et al.
patent: 4268264 (1981-05-01), Grollier et al.
patent: 4295848 (1981-10-01), Grollier et al.
patent: 4479803 (1984-10-01), Bachmann et al.
patent: 4746322 (1988-05-01), Herlihy
patent: 4904274 (1990-02-01), Schultz et al.
patent: 5131911 (1992-07-01), Lang et al.

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