Method for simultaneously dyeing and permanent shaping of hair

US6945254B2 · kind B2 · utility

Assignee

• Wella GmbH · DE

Inventors

• Dieter Schonert · Bochum, DE
• Anette Schmidt-Hoerr · Groß-Bieberau, DE
• Uwe Lenz · Zwingenberg, DE

Key dates

• Filing date: Jul 18, 2002
• Grant date: Sep 20, 2005
• Expiry date: May 1, 2023

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61Q5/04
• WIPO field: Pharmaceuticals
• WIPO sector: Chemistry

Abstract

The method for simultaneously dyeing and permanent shaping of hair includes dividing the hair into strands an winding the strands onto curlers: mixing a hair shaping component (A) containing from 6 to 15 percent by weight of a keratin-reducing substance with a dye component (B) to form a dyeing and shaping composition prior to application on the hair; treating the hair with the dyeing and shaping composition and then allowing it to act on the hair for an acting time sufficient for the permanent shaping; after that, treating the hair with a fixing composition; allowing the fixing composition to act on the hair from 1 to 40 minutes and then subsequently rinsing the hair. The dye component (B) contains at least one oxidative coupler compound and at least one oxidative dyestuff selected from a group consisting of certain 4,5-diamino-pyrazole derivatives and certain aminophenol derivatives.