Use of azomethine type compounds carrying pyrazolopyridine units for dyeing keratinous fibers

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专利权人:

ロレアル

发明人:

アジズ・ファドリ

申请号：

JP2017532887

公开号：

JP6427678B2

申请日:

2015.12.17

申请国别(地区):

JP

年份:

2018

代理人:

摘要：

The invention relates to a compound chosen from dyes of azomethine type bearing a pyrazolopyridine unit of formula (I) and the leuco forms thereof of formula (II) below, and also the optical isomers and geometrical isomers thereof, the tautomers thereof, the addition salts thereof with an acid or a base, and the solvates thereof. The invention also relates to the use of these particular compounds for dyeing keratin fibres.

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