摘要:
The invention relates to novel heteroaromatic trinuclear direct dyes, to dye compositions containing these dyes and to the process for dyeing keratin fibres using them. In particular, the invention relates to heteroaromatic trinuclear direct dyes comprising a pyridine nucleus. These novel dyes make it possible to obtain black shades that show good fastness and good stability in the dye compositions.
摘要:
The present disclosure relates to symmetrical cationic diazo compounds of formula (I), the resonance forms, and also the acid addition salts and/or the solvates thereof: The present disclosure further relates to dyeing compositions comprising such compounds as a direct dye in a medium appropriate for the dyeing of keratin fibers, and also to a method of coloring keratin fibers that employs this composition, and a multi-compartment kit containing such compositions.
摘要:
The present disclosure relates to symmetrical cationic diazo compounds of formula (I) below, their resonance forms, and also their acid addition salts and their solvates: wherein W1 radicals, which are identical, are chosen from a halogen atom, or an —NR4-Ph-NR5R6, —NR4-Ph-OR7, —O-Ph-OR7 or —O-Ph-NR5R6 group or else an —NR5R6 or —OR7 group with certain provisos; L, a non-cationic linker connecting the two identical azo chromophores, is chosen from a covalent bond; an optionally substituted C1-C40 alkyl radical optionally interrupted by a (hetero)cycle, the alkyl radical being optionally interrupted by at least one heteroatom or group comprising at least one heteroatom or an optionally substituted phenyl radical. The disclosure further relates to dyeing compositions comprising such compounds as a direct dye in a medium appropriate for the dyeing of keratin fibers, and also to a method of coloring keratin fibers that employs this composition, and a device comprising a plurality of compartments.
摘要翻译:本公开涉及下述式(I)的对称阳离子重氮化合物,它们的共振形式,以及它们的酸加成盐及其溶剂合物:其中相同的W 1个基团选自 卤素原子或-NR 4 -OR-NR 5 R 6,-NR 4 -Ph- OR 7或-O-Ph-OR 7或-O-Ph-NR 5 R 6 C 6基团或 另外还有一些条件是-NR 5 R 6或-OR 7 7, L,连接两个相同偶氮发色团的非阳离子接头选自共价键; 任选地被(杂)周期间隔的任选取代的C 1 -C 40烷基,所述烷基任选地被至少一个杂原子或包含至少一个 杂原子或任选取代的苯基。 本公开还涉及包含在适于染色角蛋白纤维的培养基中的直接染料等化合物的染色组合物,以及使用该组合物的角蛋白纤维着色方法,以及包含多个隔室的装置。
摘要:
Disclosed herein are dissymmetrical cationic diazo compounds comprising a 2-pyridinium group and a cationic or non-cationic linker. Also disclosed herein are dyeing compositions comprising such compounds as a direct dye in a medium appropriate for the dyeing of keratin fibers, a method for coloring keratin fibers comprising contacting the keratin fibers with such dyeing compositions, and a device comprising a plurality of compartments.
摘要:
Disclosed are cationic diazo compounds of the following formula Dye1-LK-Dye2 (I) in which Dye1 and Dye2 represent: Also herein disclosed are dye compositions comprising the cationic diazo compounds as direct dye, a process for dyeing keratin fibers using this composition, and a multi-compartment device.
摘要:
A dye composition comprising at least one mixed dye comprising at least two chromophore chosen from azine and (hetero)aromatic nitro compounds, optionally associated with at least one chromophore chosen from methine and carbonyl compounds; a process for dyeing keratin fibers, for example, human keratin fibers, such as the hair, using the composition, a multi-compartment device comprising the composition; and the abovementioned mixed dyes.