Invention Grant
- Patent Title: Compositions for dyeing hair with cationic direct dyes
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Application No.: US15072479Application Date: 2016-03-17
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Publication No.: US09855202B2Publication Date: 2018-01-02
- Inventor: Guiru Zhang , Bryan Patrick Murphy , Peter Marte Torgerson
- Applicant: Noxell Corporation
- Applicant Address: US MD Hunt Valley
- Assignee: Noxell Corporation
- Current Assignee: Noxell Corporation
- Current Assignee Address: US MD Hunt Valley
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: A61Q5/10
- IPC: A61Q5/10 ; A61K8/41 ; A61K8/35 ; A61K8/49 ; A61Q5/06

Abstract:
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, and one to four incipient cations. The one to four 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.
Public/Granted literature
- US20160271030A1 Compositions for Dyeing Hair with Cationic Direct Dyes Public/Granted day:2016-09-22
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