Direct dyes and composition comprising the dyes

The present invention relates to novel direct dyes and compositions comprising them for dyeing keratin fibers especially human hair. The novel dyes of the present invention have benzothiophene structure providing intensive and homogeneous dyeing on keratin fibers, especially human hair.

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Bibliographic Details
Main Authors Möhring, Hartmut, Pratt, Dominic
Format Patent
LanguageEnglish
Published 05.02.2019
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Summary:The present invention relates to novel direct dyes and compositions comprising them for dyeing keratin fibers especially human hair. The novel dyes of the present invention have benzothiophene structure providing intensive and homogeneous dyeing on keratin fibers, especially human hair.
Bibliography:Application Number: US201515538095