COLOURING OF KERATINOUS FIBERS USING A PRETREATMENT COMPRISING AN IRON SALT AND A COLOUR DEVELOPER COMPRISING HYDROLYSABLE TANNIN

• Main Authors: NAIK VIJAY MUKUND, TETRADIS MAIRIS GEORGIOS, BALAKRISHNAN LALITHA, MANI INDU, RAUT JANHAVI SANJAY
• Format: Patent
• Language: English; Korean
• Published: 10.08.2011
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS

A method of coloring keratinous fibers comprising contacting the keratinous fibers sequentially with a pre-treatment composition and a color developer wherein: i. the pre-treatment composition comprises: (a) 0.5-25% by weight of an iron salt at a pH below 2 including 0.5-5% by weight of a reducing a...