Patent ID: 7749285
Filing Date: 2010-07-06
Classification: A61K,A61Q

Abstract:
1. A process for colouring and permanently shaping keratin fibres especially human hair characterised in that it comprises the following steps a—mixing a first aqueous oxidative colouring composition based on at least one oxidative dye precursor and optionally at least one coupling substance but not comprising any direct dye with a first composition comprising at least one oxidizing agent; applying said first oxidative colouring composition onto hair, rinsing off from hair with water after processing 5 to 45 min at a temperature of 20 to 45° C. and towel drying the hair; b—placing the towel dried hair on curlers, c—applying an aqueous composition comprising at least one reducing agent onto hair rinsing, off from hair with water after a processing time of 2 to 30 min at ambient temperature and towel drying the hair; d—applying a second composition comprising at least one oxidizing agent onto hair processed for 2 to 15 min, removing curlers from hair, and optionally rinsing off from hair with water and optionally towel drying; and e—mixing a second aqueous oxidative colouring composition based on at least one oxidative dye precursor and optionally at least one coupling substance with a third composition comprising at least one oxidizing agent; applying said second oxidative colouring composition onto hair, rinsing off from hair with water after processing 5 to 45 min at a temperature of 20 to 45° C. and drying hair.