Hair treatment methods

Details Hair treatment methods Hair treatment methods

A - Human Necessities

61

K

A61K 8/23 (2006.01) A61Q 5/06 (2006.01)

Patent

CA 2737394

A method of colouring a material, the method comprising the steps of: a)applying to the material a composition comprising a sulphur-containing nucleophile; and b)applying to the material a composition comprising a dye compound selected from a dye class other than the class of reactive dyes.

L'invention concerne un procédé de coloration d'un matériau, le procédé comprenant les étapes consistant à : a) appliquer sur le matériau une composition comprenant un nucléophile soufré ; et b) appliquer sur le matériau une composition contenant un composé colorant choisi dans une classe de colorants qui n'est pas la classe des colorants réactifs.

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