Particular azomethine direct dyes, dye composition comprising at least one such compound, implementation process therefore and use thereof

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专利权人:

L'OREAL

发明人:

Stephane Sabelle,Madeleine Leduc

申请号：

US14365211

公开号：

US09226883B2

申请日:

2012.12.11

申请国别(地区):

US

年份:

2016

代理人:

摘要：

The present invention relates to direct dyes of azomethine type of formula (I) below； and also to the use thereof for dyeing keratin fibers, in particular human keratin fibers such as the hair. The invention also relates to a composition for dyeing keratin fibers, comprising such direct dyes in a suitable dyeing medium. Similarly, a subject of the invention is a process for dyeing keratin fibers using the said dye composition, and also a device comprising the same. Finally, the present invention also relates to precursors of these direct dyes.

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中国工程科技知识中心

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