Hair colouring methods

Details Hair colouring methods Hair colouring methods

A - Human Necessities

61

K

A61K 7/13 (2000.01)

Patent

CA 2290566

A method of colouring hair, particularly suitable for demi-permanent colouration, comprising providing: (i) one or more developers selected from aminoaromatic systems capable of being oxidized and thereafter undergoing a single nucleophilic attack, and (ii) one or more couplers selected from (A) phenols and naphthols having an active leaving group in the para position relative to the hydroxyl group, (B) 1,3-diketone derivatives having an active leaving group, and (C) pyrazolone derivatives having an active leaving group, and (iii) oxidizing agent, applying components (i), (ii) and (iii) to the hair to be coloured, and allowing the components (i), (ii), and (iii) to remain on the hair for not more than 15 minutes, and rinsing. Also provided is a hair colouring kit comprising the defined components and instructions.

L'invention concerne un procédé de coloration capillaire convenant particulièrement bien aux colorations semi-permanentes, lequel procédé consiste à fournir (i) un ou plusieurs développeurs choisis parmi des systèmes aromatiques aminés pouvant être oxydés pour être ensuite soumis à une seule attaque électrophile, et (ii) un ou plusieurs coupleurs choisis parmi (A) des phénols et des naphtols possédant un groupe partant actif en position para par rapport au groupe hydroxy, (B) des dérivés de 1,3-dicétones possédant un groupe partant actif, ou (C) des dérivés de pyrazolone possédant un groupe partant actif, et (iii) un agent oxydant, à appliquer les composants (i), (ii) et (iii) sur les cheveux à colorer, et à laisser agir les composants (i), (ii) et (iii) sur les cheveux pendant pas plus de 15 mn, et à rincer. L'invention concerne également un kit de coloration comprenant les composants et les instructions précitées.

Affiliated with

Also associated with

Rating

Hair colouring methods does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hair colouring methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hair colouring methods will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1394579