Described herein is a yellow imidazolium chromophore having a structure according to Formula V.
本文描述了一种具有如下V式结构的黄色咪唑铵色团。
[EN] HAIR COLOR COMPOSITIONS COMPRISING STABLE VIOLET-BLUE TO BLUE IMIDAZOLIUM DYES<br/>[FR] COMPOSITIONS DE COLORATION DES CHEVEUX COMPRENANT DES COLORANTS D'IMIDAZOLIUM STABLES VIOLET-BLEU AU BLEU
申请人:NOXELL CORP
公开号:WO2018053034A1
公开(公告)日:2018-03-22
Disclosed are hair color compositions comprising novel stable violet-blue to blue imidazolium azo compounds that have a simplified chromophore and high relative solubility in aqueous systems, and that are surprisingly stable under the conditions of use and storage. These compositions are useful for dyeing fibers such as hair and other keratinaceous materials. The compositions can optionally include an oxidant. Also disclosed are methods for dying keratin fibers including human hair using the disclosed hair color compositions. The methods optionally include an ability to alter the electronic charge in situ of the hair color compositions
[EN] CATIONIC DIRECT DYES<br/>[FR] COLORANTS DIRECTS CATIONIQUES
申请人:BASF SE
公开号:WO2016146813A1
公开(公告)日:2016-09-22
The invention relates to cationic direct dyes of the formula I (1), wherein m and n are independently from each other 0 or 1, D is an aromatic or a cationic heteroaromatic group, which are further specified, K is an aromatic or heteroaromatic group, E1 and E2 are independently from each other =CH- or =N-, An is an anion and a is a number from 1 to 6 and R1 and R2 are independently from each other and further specified. The compounds show washfastness at hair-dying.
[EN] COMPOSITIONS FOR DYEING HAIR WITH CATIONIC DIRECT DYES<br/>[FR] COMPOSITIONS POUR COLORATION CAPILLAIRE AVEC COLORANTS DIRECTS CATIONIQUES
申请人:PROCTER & GAMBLE
公开号:WO2016149429A1
公开(公告)日:2016-09-22
Described herein is a hair color composition for dyeing the hair. The hair color composition includes one or more direct dye compounds and one or more additional ingredients. The one or more direct dye compounds each include a chromophore, one or two permanent cations, one to four incipient cations, and one or more hydrophobic moieties. The incipient cations are pendant to the core structure and are neutral. The one or more direct dye compounds enter the hair shaft after the hair color composition is applied to the hair. The hair color composition has a pH of from about 7 to about 11.
Described herein is a method of dyeing the hair. The method includes applying to the hair a hair color composition including one or more direct dye compounds and rinsing the hair with water. The one or more direct dye compounds each include a chromophore, one or two permanent cations, one to four incipient cations, and one or more hydrophobic moieties. The incipient cations are pendant to the core structure and are neutral. The one or more direct dye compounds enter the hair shaft after the hair color composition is applied to the hair. The hair color composition has a pH of from about 7 to about 11. The pH of the hair after rinsing is from about 3.5 to about 6. The rinsing of the hair causes one or more of the one to four incipient cations to change from neutral to positively charged inside of the hair shaft.