申请人:L'Oreal
公开号:US04865618A1
公开(公告)日:1989-09-12
New chloro-meta-phenylenediamines, their use as couplers in the oxidation dyeing of keratinous fibres, dyeing compositions for hair containing these compounds and dyeing process using the said compositions. The invention relates to the compounds of formula: ##STR1## in which Z and Z' denote, independently of one another, an alkyl radical having from 1 to 4 carbon atoms or a hydroxyalkyl radical having from 2 to 4 carbon atoms, and R.sub.1 and R.sub.2 denote, independently of one another, a hydrogen atom, an alkyl radical having from 1 to 4 carbon atoms or a mono- or polyhydroxyalkyl radical having 2 or 3 carbon atoms, to their addition salts with an acid, and to their use by way of couplers for the oxidation dyeing of keratinous fibres, especially human hair. These compounds, when they are combined with paraphenylenediamines, surprisingly give beige to light brown hues or purple hues of greater or lesser redness, depending on the substitution of the 5-amino group of the chlorobenzene.
新的氯甲基苯二胺,它们作为角蛋白纤维氧化染色中的偶联剂的用途,含有这些化合物的头发染料组合物和使用这些组合物的染色过程。 该发明涉及以下式的化合物:其中Z和Z'分别表示具有1至4个碳原子的烷基基团或具有2至4个碳原子的羟基烷基基团,R.sub.1和R.sub.2分别表示氢原子,具有1至4个碳原子的烷基基团或具有2或3个碳原子的单糖基或多糖基基团,它们与酸的加成盐,以及它们通过偶联剂的使用用于角蛋白纤维的氧化染色,特别是人类头发。 这些化合物与对苯二胺结合时,令人惊讶地产生米色至浅褐色或紫色,具有较大或较小红色度的色调,具体取决于氯苯的5-氨基取代。