COMPOSITION DE COLORANT COMPRENANT UN COMPOSÉ IRIDOÏDE NON GLYCOSYLÉ ET UN ALDÉHYDE OU UNE IMINE PARTICULIER, PROCÉDÉ DE COLORATION ET DISPOSITIF ASSOCIÉ
The present invention relates to a composition for dyeing human keratin fibres, comprising, in a cosmetically acceptable medium: a compound of formula (I) and/or of formula (II) below, or a plant extract comprising the same: with R1 : hydrogen, (hydroxy)methyl, aldehyde, -CO2R4 and R4: hydrogen, alkyl, - CH2-glucose； R2: hydrogen, hydroxyl, glucose； R3: hydrogen, hydroxyl, alkyloxy； n ranging from 1 to 5； R5: -C02R'6 and R'6: hydrogen, alkyl, cation； at least one aldehyde or imine compound of formulae (i) and (ii), and also oxidized oligo- or polysaccharide comprising at least one aldehyde or imine function: with n equal to 0 or 1； X: O, NR'-1； A: COOH, optionally substituted aryl, cationic or non-cationic, saturated or unsaturated 5- or 6-membered heterocycle, comprising one or two heteroatoms, optionally substituted, alkyl, alkenyl； A2 divalent alkylene； the compounds possibly being, in the case of aldehydes, in acetal or hemiacetal form. A subject of the invention is also a process using such a composition and a multicompartment device comprising a first compartment containing at least one compound of formula (I) and/or (II) or a plant extract comprising the same, and a second compartment containing at least one compound of formula (i) or (ii), an oxidized oligo- or polysaccharide comprising at least one aldehyde or imine function.La présente invention concerne une composition pour colorer des fibres de kératine humaine, comprenant dans un milieu acceptable au plan cosmétique : un composé de formule (I) et/ou de formule (II) ci-dessous, ou un extrait végétal le comprenant : avec R1 : hydrogène, (hydroxy)méthyle, aldéhyde, -CO2R4 et R4 : hydrogène, alkyle, - CH2-glucose； R2 : hydrogène, hydroxyle, glucose； R3 : hydrogène, hydroxyle, alkyloxy； n compris entre 1 et 5； R5 : -C02R'6 et R'6 : hydrogène, alkyle, cation； au moins un composé aldéhyde ou imine de formules (i) et (ii), et également un oligo- ou polysaccharide oxydé comprenant au moins une fonction aldéhyde
