Hair dyeing process using a composition comprising at least one indol(in)e compound and a polycyclic aromatic compound containing at least ten carbon atoms

US10292921B2 · kind B2 · utility

Assignee

• L'Oreal · FR

Inventors

• Fabien Aubert · Paris, FR
• Arno WAHLER · Les Chapelles, FR
• Marie Mignon · Paris, FR

Key dates

• Filing date: May 27, 2015
• Grant date: May 21, 2019
• Expiry date: May 27, 2035

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61K2800/884
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The invention relates to a process for dyeing keratin fibers by treating said fibers with i) at least one aromatic compound comprising a hydrocarbon-based polycycle comprising at least 10 carbon atoms, at least one of the rings of which is aromatic, ii) at least one indol(in)e compound; optionally iii) at least one metal salt, iv) at least hydrogen peroxide or at least one hydrogen peroxide-generating system and v) at least one basifying agent; to a dye composition comprising ingredients i) and ii), and optionally iii) to v) as defined previously and to a kit comprising ingredients i) to v) as defined previously. This hair dyeing process makes it possible to obtain better colorings which are more uniform, chromatic and long-lasting and which do not impair the cosmetic properties of the keratin fibers, and prevents changing of the color associated with the presence of indol(in)e derivatives.