Process for permanently reshaping the hair using particular aminosilicones

Abstract

A process for permanently reshaping keratin fibres, comprising the application to the keratin fibres, before reducing and/or after fixing, of a pre-treatment and/or post-treatment cosmetic composition comprising, in a cosmetically acceptable medium, at least one aminosilicone comprising at least one aminoethylimino(C 4 -C 8 )alkyl group.

1 . A process for permanently reshaping keratin fibres, comprising: 
 (i) applying a reducing composition to the keratin fibres; and    (ii) oxidizing the keratin fibres,    wherein the process comprises applying to the keratin fibres, before(i) and/or after (ii), a pre-treatment and/or post-treatment cosmetic composition comprising, in a cosmetically acceptable medium, at least one aminosilicone comprising at least one aminoethylimino(C 4 -C 8 )alkyl group.    
   
   
       2 .- 9 . (canceled)  
   
   
       10 . The process according to  claim 1 , wherein the at least one aminosilicone has a weight-average molecular mass ranging from 2 000 to 1 000 000.  
   
   
       11 . The process according to  claim 10 , wherein the at least one aminosilicone has a weight-average molecular mass ranging from 3 500 to 200 000.  
   
   
       12 . The process according to  claim 1 , wherein the pH of the pre-treatment and/or post-treatment composition ranges from 2 to 10.  
   
   
       13 . The process according to  claim 12 , wherein the pH of the pre-treatment and/or post-treatment composition ranges from 3 to 9.  
   
   
       14 . The process according to  claim 1 , wherein the concentration of the at least one aminosilicone comprising at least one aminoethylimino(C 4 -C 8 )alkyl group in the pre-treatment and/or post-treatment composition ranges from 0.05 to 10% by weight relative to the total weight of the composition.  
   
   
       15 . The process according to  claim 14 , wherein the concentration of the at least one aminosilicone comprising at least one aminoethylimino(C 4 -C 8 )alkyl group in the pre-treatment and/or post-treatment composition ranges from 0.1 to 7% by weight relative to the total weight of the composition.  
   
   
       16 . The process according to  claim 1 , wherein the pre-treatment and/or post-treatment composition is left to act on the keratin fibres for a period of time ranging from 1 to 60 minutes.  
   
   
       17 . The process according to  claim 16 , wherein the pre-treatment and/or post-treatment composition is left to act on the keratin fibres for a period of time ranging from 3 to 30 minutes.  
   
   
       18 . The process according to  claim 1 , wherein the pre-treatment and/or post-treatment composition further comprises at least one additive chosen from vitamins and derivatives thereof, provitamins,antioxidants, essential oils, wetting agents, silicone and non-silicone sunscreens, preserving agents, sequestering agents, pearlescent agents, pigments, moisturizers, antidandruff agents, anti-seborrhoeic agents, plasticizers, hydroxy acids, electrolytes, solvents and fragrances.  
   
   
       19 - 21 . (canceled)  
   
   
       22 . A kit for permanently reshaping keratin fibres, comprising at least one compartment comprising a pre-treatment and/or post-treatment cosmetic composition comprising at least one aminosilicone comprising at least one aminoethylimino(C 4 -C 8 )alkyl group.  
   
   
       23 . A pre-treatment and/or post-treatment cosmetic composition for pre-treatment and/or post-treatment in permanent reshaping of keratin fibres comprising, in a cosmetically acceptable medium in said composition, at least one aminosilicone comprising at least one aminoethylimino(C 4 -C 8 )alkyl group.