Process for dyeing human hair with diazo salts

Details Process for dyeing human hair with diazo salts Process for dyeing human hair with diazo salts

1977-12-21

1979-07-31

Thomas, Jr., James O.

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

8 10, 8 41R, 8 44, 8 47, A61K 713

Patent

active

041628934

ABSTRACT:
Described is a process for dyeing keratin-containing material with developing dyes by applying, successively in any desired sequence or simultaneously, to the keratin-containing material to be dyed, diazo salts and coupling components, and coupling these together, which process is characterized in that there are used coupling components of the formula ##STR1## wherein R represents an unsubstituted or substituted aryl group.

REFERENCES:
patent: 1718882 (1929-06-01), Schwenk et al.
patent: 1727920 (1929-09-01), Woetzel et al.
patent: 1877318 (1932-09-01), Hoffa et al.
patent: 1914441 (1933-06-01), Laska et al.
patent: 3582253 (1971-06-01), Berth et al.
patent: 4065254 (1977-12-01), Buhler et al.

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