2-part hair dyeing agent

Details 2-part hair dyeing agent 2-part hair dyeing agent

1990-11-21

1992-07-21

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8406, 8408, 8409, 8410, 8421, A61K 713

Patent

active

051319128

ABSTRACT:
Novel durable 2-part hair dyeing agents composed of a first agent comprising as essential components at least one compound that forms HCO.sub.3 --by dissociation in water, an alkali generating substantially no irritating odor and a dye for hair and having a pH of 8.2 to 9.0. and a second agent comprising as essential components hydrogen peroxide and a buffer solution and having a pH of 2.0 to 4.0, the weight ratio of the first agent and the second agent to be mixed being such that the pH of the mixture of the two is in a range of from 6.5 to 7.9. These 2-part hair dyeing agents require only a short dyeing time, create little damage to hair and no irritating or disagreeable odor and have high dyeing effect.

REFERENCES:
patent: 3861868 (1975-01-01), Milbrada
patent: 3975515 (1976-08-01), Wajaroff et al.
patent: 4529404 (1985-07-01), Feinland et al.
patent: 4656030 (1987-04-01), Sebag et al.
patent: 4797130 (1989-01-01), Clausen et al.
English Abstract of JP Appln. No. 62-5836/1987 (Laid-Open No. 174917/1988).
English Abstract of JP Appln. No. 59-203389/1984 (Published No. 1-18048/1989).
English Abstract of JP Appln. No. 63-174917.

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