Method for providing a film comprising pigment on keratin fibres
View Patent ↗A method for providing a film comprising pigment on keratin fibres comprises: (a) applying a composition to hair, wherein the composition comprises: an aminosilicone polymer, wherein the aminosilicone polymer comprises amino sidechains, and wherein the aminosilicone polymer has a weight average molecular weight of from 10,000 Dalton to 60,000 Dalton; a silicone resin which is a MQ resin; a thickening system comprising a thickening polymer; one or more pigments or one or more coloured materials; a solvent; and subsequently (b) applying a coating formulation onto the hair, wherein the coating formulation comprises a silicone resin and a volatile solvent; wherein the keratin fibres are not rinsed between steps (a) and (b). Also associated kits and uses thereof.
1. A method for providing a film comprising pigment on keratin fibres, the method comprising:
(a) applying a composition to hair, wherein the composition comprises:
an aminosilicone polymer, the aminosilicone polymer having the structure according to Formula I:
wherein x′ and y′ are positive integers, such that a weight average molecular weight of the aminosilicone polymer is from 10,000 Dalton to 60,000 Dalton;
an silicone resin wherein the silicone resin is a MQ resin;
a thickening system, in a range of from about 0.5% to about 2% of the composition, the thickening system comprising a thickening polymer and a deposition enhancer, wherein the deposition enhancer is polyethylene glycol-45 in 0.2% of the thickening system and the thickening polymer is polyquaternium-37 in a range of from 0.75% to 1% of the thickening system;
one or more pigments or one or more coloured materials, wherein the one or more pigments have a D 50 particle diameter of from about 5 micron to about 60 micron;
a solvent;
(b) subsequently applying a coating formulation onto the hair, wherein the coating formulation comprises a silicone resin and a volatile solvent; and
wherein
the keratin fibres are not rinsed between steps (a) and (b); and
after step (a) but prior to step (b), the keratin fibres are allowed to dry or are dried, wherein the keratin fibres are additionally allowed to dry or are dried after step (b), and wherein the drying is carried out at a temperature of about 28° C. to about 40° C., and wherein
the composition has a viscosity of from about 30 mPa·s to about 450 mPa·s, and wherein the viscosity is measured at about 23° C.
2. The method of claim 1 , wherein the composition has a viscosity of from about 50 mPa·s to about 450 mPa·s, and wherein the viscosity is measured at about 23° C.
3. The method of claim 1 , wherein the keratin fibers are dried with a device chosen from a blow dryer, a heated iron, a heated hood, or a combination thereof.