[EN] SYMMETRIC AZOMETHINE DIRECT DYES, PROCESS FOR THEIR PREPARATION, COSMETIC COMPOSITION COMPRISING AT LEAST ONE SUCH DYE AND USE THEREOF<br/>[FR] COLORANTS DIRECTS DE TYPE AZOMÉTHINE SYMÉTRIQUES, LEUR PROCÉDÉ DE PRÉPARATION, COMPOSITION COSMÉTIQUE COMPRENANT AU MOINS UN TEL COLORANT ET LEUR UTILISATION
申请人:OREAL
公开号:WO2018109156A1
公开(公告)日:2018-06-21
The present invention relates to a process for dyeing keratin fibres, in particular human keratin fibres such as the hair, in one or more steps, comprising the application to said keratin fibres of a composition comprising one or more compounds of formula (I) and/or (II), and also to the use thereof for dyeing keratin fibres, and to a device: in which formula (I) or (II) R1, R3, R4, R5, R6, and n are as defined in the description. The compounds of formula (I) according to the invention can give powerful, chromatic and sparingly selective colourings with good colour build-up, which are resistant to the various attacking factors to which keratin fibres may be subjected, such as inclement weather, light, washing and perspiration.
本发明涉及一种染色角蛋白纤维的方法,特别是人类角蛋白纤维,如头发,通过在一步或多步中将公式(I)和/或(II)的一个或多个化合物应用于所述角蛋白纤维的组成物,以及其用于染色角蛋白纤维,以及一种装置:其中公式(I)或(II)中的R1,R3,R4,R5,R6和n如描述中所定义的。本发明的公式(I)化合物可以提供强大、色彩鲜艳且色彩选择性较低的染色,具有良好的着色建立,耐受各种攻击因素,如恶劣天气、光、洗涤和出汗等,这些攻击因素可能会影响角蛋白纤维。