Hair treatment methods

• US 9,320,695 B2
• Filed: 03/22/2013
• Issued: 04/26/2016
• Est. Priority Date: 04/02/2012
• Status: Active Grant

• Current Assignee: HSNF Limited
• Original Assignee: Perachem Limited
• Inventors: Hawkes, Jamie Anthony, Lewis, David Malcolm, Mama, John
• Primary Examiner(s): ELHILO, EISA B
• Application Number:
  US14/389,925
• Publication Number:
  US 20150047131A1
• Time in Patent Office: 1,131 Days
• Field of Search: 840/5, 132/202, 132/208
• US Class Current: 1/1
• CPC Class Codes: A61K 2800/884 Sequential application
• CPC Class Codes: A61K 8/416 Quaternary ammonium compounds A61K8/35 takes precedence
• CPC Class Codes: A61K 8/46 containing sulfur A61K8/44 takes precedence
• CPC Class Codes: A61Q 5/065 Preparations for temporary colouring the hair, e.g. direct dyes
• CPC Class Codes: A61Q 5/10 Preparations for permanently dyeing the hair

Abstract

A method of treating a material, the method comprising the steps of: (i) contacting the material with a coloring composition comprising a dye compound; and (ii) contacting the material with a composition comprising a quaternary ammonium salt.

Claims

1. A method of treating a material, the method comprising the steps of:

a) contacting the material with colouring composition comprising a water soluble dye compound containing sulfonate and/or carboxylate groups and that includes a chromophore and a thiol selected from thioglycolic acid, thiolactic acid, dihydrolipoate, thioglycerol, mercaptopropionic acid, cysteine, N-substituted cysteines, cysteamines, N-substituted cysteamines, thioethanol, thiosulfate, sulfide anion, 1-thiopropane 3-sulfonate, and salts and/or esters thereof;

b) rinsing the material;

c) contacting the material with an oxidising composition;

d) rinsing the material; and

e) contacting the material with a composition comprising a quaternary ammonium salt.

2. A method according to claim 1 wherein the material is hair.

3. A method according to claim 1 wherein the colouring composition comprises a swelling agent.

4. A method according to claim 1 wherein the colouring composition has a pH of from 8 to 11.

5. A method according to claim 1 wherein the quaternary ammonium salt contacted with the material in step (e) is selected from compounds containing a single quaternary ammonium cationic centre and compounds including multiple quaternary ammonium cationic centres.

6. A method according to claim 5 wherein the quaternary ammonium salt is selected from compounds of formula

7. A method according to claim 6 wherein the quaternary ammonium salt is selected from cetyltrimethyl ammonium chloride, stearyltrimethyl ammonium chloride, behenyltrimethyl ammonium chloride and mixtures thereof.

8. A method according to claim 1 wherein the composition contacted with the material in step (e) is an acidic composition.

9. A method according to claim 1 wherein the oxidising composition contacted with the hair in step (c) comprises hydrogen peroxide.

10. A method according to claim 9 wherein the oxidising composition comprises from 0.25 to 2.5 wt % hydrogen peroxide.

11. A method according to claim 1 wherein the oxidising composition has a pH of from 3 to 6.