Patent Number: 6,254,647

Title: Process for the preparation of a composition for the dyeing of human hair

Abstract: A time and energy saving process for the preparation of a stable, aqueous emulsion for the dyeing of human hair comprises a) first heating a water phase containing water-soluble surfactants, salts and optionally other water-soluble additives to 50.degree. and 90.degree. C.; subsequently, b) while maintaining this temperature, adding solid fatty components having a melting point between 20.degree. C. and the temperature actually applied according to a) between 50.degree. and 90.degree. C., stirring at this temperature until the solid fatty components are completely melted in the mixture, and, c) adding the remaining liquid fatty components to the composition thus obtained without any further heating.

Inventors: Frohling; Beate (Bensheim, DE)

Assignee: Goldwell GmbH

International Classification: A61K 8/04 (20060101); A61K 8/06 (20060101); A61Q 5/10 (20060101); A61K 007/13 ()

Expiration Date: 07/03/2018