Direct capillary dyeing composition comprising a...

A - Human Necessities – 61 – K

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Details

A61K 8/81 (2006.01) A61K 8/35 (2006.01) A61K 8/41 (2006.01) A61Q 5/06 (2006.01)

Patent

CA 2239104

The invention discloses a capillary dyeing composition comprising at least one direct dye, characterised in that it further contains a cross-linked polymer with acrylic units and alkyl C¿10?-C¿30? acrylate units. The invention also discloses the use of a cross-linked polymer with acrylic units and alkyl C¿10?-C¿30? acrylate units in or for the production of a capillary dyeing composition comprising at least one direct dye, to improve the tinctorial power of the said composition, particularly after storage at below about 10 ·C, and in particular at about 4 ·C. The invention also discloses a method for preserving the tinctorial power, in particular after storage at a tempature below about 10 ·C, of a dyeing composition containing at least one direct dye, characterised in that an effective amount of the said cross-linked polymer is added to the composition.

L'invention concerne une composition de teinture capillaire comprenant au moins un colorant direct, caractérisée par le fait qu'elle contient en outre un polymère réticulé à motifs acryliques et à motifs acrylates d'alkyles en C10-C30. L'invention concerne aussi l'utilisation d'un polymère réticulé à motifs acryliques et à motifs acrylates d'alkyles en C10-C30 dans ou pour la fabrication d'une composition de teinture capillaire comprenant au moins un colorant direct, pour améliorer le pouvoir tinctorial de ladite composition, en particulier après des stockages en dessous de 10 ~C environ, et notamment aux environs de 4 ~C. L'invention a également pour objet un procédé de conservation du pouvoir tinctorial, en particulier après des stockages à une température inférieure à environ 10 ~C, d'une composition de teinture contenant au moins un colorant direct, caractérisé par le fait qu'on ajoute à la composition, une quantité efficace dudit polymère réticulé.

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