| abstract |
A new process for simultaneous permanent shaping and coloring of the hair, in which the hair is treated with a keratin reducing agent before and / or after a mechanical shaping, rinsed and fixed with an oxidizing agent, uses an aqueous preparation for the keratin reduction, which contains a mercapto compound or a sulfite and at least one dye of the reactive carbonyl compound type, selected from the group of aromatic, heteroaromatic or unsaturated aldehydes or ketones, containing dialdehydes or diketones or their acetals, semi-aminals or imine derivatives. A compound with a primary or secondary amino or hydroxyl group selected from amino acids, peptides, aromatic amines, phenols, aminophenols and nitrogen-containing heterocycles is preferably present to intensify the coloring. |