Hydroxyl derivatives of benzaldehyde for coloring keratin fibres

Details Hydroxyl derivatives of benzaldehyde for coloring keratin fibres Hydroxyl derivatives of benzaldehyde for coloring keratin fibres

1981-04-15

1983-07-05

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

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

Hair dyeing

8405, 8406, A61K 713

Patent

active

043916031

ABSTRACT:
The invention discloses the use of hydroxyl derivatives of benzaldehyde for coloring keratin fibres without an oxidizing agent. These derivatives are of the type which correspond to the formula: ##STR1## in which R denotes a linear or branched lower alkyl group which is optionally substituted by one or two OH groups, n is equal to 1, 2 or 3, m is equal to 0, 1 or 2 and the sum n+m is equal to 2 or 3.

REFERENCES:
patent: 2944869 (1960-07-01), Kaldpississ et al.
patent: 3893803 (1975-07-01), Kaiser
patent: 3957424 (1976-05-01), Zeffren et al.

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