[EN] HAIR COLOR COMPOSITIONS COMPRISING STABLE VIOLET-BLUE TO BLUE IMIDAZOLIUM DYES [FR] COMPOSITIONS DE COLORATION DES CHEVEUX COMPRENANT DES COLORANTS D'IMIDAZOLIUM STABLES VIOLET-BLEU AU BLEU
[EN] HAIR COLOR COMPOSITIONS COMPRISING STABLE VIOLET-BLUE TO BLUE IMIDAZOLIUM DYES [FR] COMPOSITIONS DE COLORATION DES CHEVEUX COMPRENANT DES COLORANTS D'IMIDAZOLIUM STABLES VIOLET-BLEU AU BLEU
[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
Method of coloring hair with washfast blue imidazolium direct dye compounds
申请人:Noxell Corporation
公开号:US10034823B2
公开(公告)日:2018-07-31
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 blue-violet or blue 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 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 6 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.
HAIR COLOR COMPOSITIONS COMPRISING STABLE VIOLET-BLUE TO BLUE IMIDAZOLIUM DYES
申请人:Noxell Corporation
公开号:EP3512488A1
公开(公告)日:2019-07-24
Method of Coloring Hair with Washfast Blue Imidazolium Direct Dye Compounds
申请人:Noxell Corporation
公开号:US20180078478A1
公开(公告)日:2018-03-22
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 blue-violet or blue 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 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 6 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.