Hair Colouration, Method and Kit Thereof

Patent metadata

Field	Value
Publication number	US-2016120285-A1
Application number	US-201514922615-A
Country	US
Kind code	A1
Filing date	Oct 26, 2015
Priority date	Oct 29, 2014
Publication date	May 5, 2016
Grant date	—

Abstract

Method for colouring hair wherein a first composition comprising at least one cationic polymer and a second composition comprising at least one anionic polymer are alternately applied to the hair.

First claim

What is claimed is:

1 . A method for colouring hair comprising:
a) carrying out the following sequence of steps:
i) applying a first composition comprising at least one cationic polymer to a first portion of the hair; and
ii) applying a second composition comprising at least one anionic polymer to a second portion of the hair;
the first and the second portions of the hair having at least one common area;
and b) repeating step a) at least once, wherein the common area of each of the repeated steps
a) has at least one common area with:
the common area of step a); and
the common area of each of the other repeated steps a), in case step a) is repeated more than once;

wherein in step a) or in at least one of the repeated steps a), the cationic polymer is a cationic coloured polymer or the anionic polymer is an anionic coloured polymer.

2 . The method according to claim 1 , wherein in step a) or in each of the repeated steps a), the cationic polymer is a cationic coloured polymer or the anionic polymer is an anionic coloured polymer.

3 . The method according to claim 1 , wherein step i) or ii) further comprises the subsequent sub-steps of:
removing the excess of respectively the first composition or the second composition from the hair or applying energy to the hair in the form of heat, ultrasounds, infrared or microwaves or washing or rinsing the hair.

4 . The method according to claim 1 , wherein the cationic polymer comprises at least one monomer unit comprising at least one amino functional group, wherein the amino functional group is selected from the group consisting of primary, secondary, tertiary, quaternary amino functional groups and mixtures thereof.

5 . The method according to claim 1 , wherein the cationic polymer comprises at least one monomer unit comprising at least one amino functional group, wherein the amino functional group is selected from the group consisting of primary, secondary amino functional groups and mixtures thereof.

6 . The method according to claim 1 , wherein the cationic polymer comprises at least one monomer unit comprising at least one amino functional group, wherein the amino functional group is selected from secondary amino functional groups.

7 . The method according to claim 1 , wherein the cationic polymer is selected from the group consisting of linear polyethyleneimine, branched polyethyleneimine, polyallylamine hydrochloride, polydiallyldimethylammonium chloride, copolymers thereof and mixtures thereof.

8 . The method according to claim 1 , wherein the anionic polymer comprises at least one monomer unit comprising at least one functional group selected from the group consisting of sulfate, sulfonate, carboxylate, phosphate, phosphonate groups and mixtures thereof.

9 . The method according to claim 1 , wherein the anionic polymer comprises at least one monomer unit comprising at least one functional group selected from the group consisting of sulfate, sulfonate, carboxylate groups and mixtures thereof.

10 . The method according to claim 1 , wherein the anionic polymer is selected from the group consisting of polystyrene sulfonate salts, λ-Carrageenan, Dextran sulfate salts, polyacrylic acid, poly(methacrylic acid) salts, alginic acid salts, carboxymethylcellulose salts, copolymers thereof and mixtures thereof.

11 . The method according to claim 1 , wherein the anionic polymer is selected from the group consisting of anionic coloured polymers, anionic uncoloured polymers and mixtures thereof.

12 . The method according to claim 1 , wherein:
the cationic coloured polymer comprises the same type of chromophore or fluorophore or different types of chromophores or fluorophores or the anionic polymer is an anionic coloured polymer comprising the same type of chromophore or fluorophore or different types of chromophores or fluorophores.

13 . The method according to claim 1 , wherein:
the cationic polymer has a weight average molecular weight ranging from 0.5 kD to 5000 kD or the anionic polymer has a weight average molecular weight ranging from 10 kD to 1000 kD.

14 . The method according to claim 1 , wherein:
the first composition comprises a total concentration of cationic polymers ranging from 0.1 g/L to 100 g/L or the second compositions comprises a total concentration of anionic polymers ranging from 0.1 g/L to 100 g/L.

15 . The method according to claim 1 , wherein the first or the second composition has a pH ranging from 2 to 14.

16 . The method according to claim 1 , wherein the first or the second composition comprises a cosmetically acceptable salt at a concentration ranging from 0.05 to 1.5 mol/L.

17 . The method according to claim 1 , wherein prior to step a), the hair is pretreated to modify the number of positive or negative charges in some portions of the hair or all over the hair.

18 . The method according to claim 17 , wherein the hair is pretreated by chemical or physical means such as pH change, oxidation, reduction, bleaching, plasma treatment, ozone treatment, electrowetting, dry or wet ion-treatment.

19 . A hair colouration obtainable by the method according to claim 1 .

20 . A kit for colouring hair comprising a first compartment comprising the first composition as defined in claim 1 and a second compartment comprising the second composition as defined in claim 1 .

Assignees

• Procter & Gamble

Inventors

• Crne Matija
• Dahne Lars
• Egri Gabriella
• Funk Christian
• Herrlein Mathias Kurt
• Hilbig Klaus
• Klickermann Moritz
• Schafer Tatjana

Classifications

• A61K8/84 Primary

  obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds · CPC title

• A61K2800/5424

  anionic · CPC title

• A61K2800/43

  Pigments; Dyes · CPC title

• A61K2800/884

  Sequential application · CPC title

• A45D2019/0066

  Human Necessities · mapped topic