Wash resistant compositions containing aminosilicone

Abstract

Compositions and methods are disclosed for imparting a long-wearing color to keratin fibers, including hair. More specifically, the invention relates to cosmetic compositions and methods for improving retention of particulate materials, such as pigments, on hair to artificially color the hair and/or to impart other aesthetic benefits to the hair. The compositions comprise at least one aminosilicone polymer having at least one diamino functional group, and a functional group equivalent weight (FGEW) from about 1,000 to about 2,000 g/mol and a non-spherical particulate material.

1 . A method for imparting a long-wearing color to hair comprising applying to said hair a composition comprising:
 (a) at least one aminosilicone polymer having at least one aminoethylaminopropyl group and a functional group equivalent weight (FGEW) from about 1,000 to about 2,000 g/mol, and   (b) a non-spherical particulate material.   
     
     
         2 . The method according to  claim 1 , wherein the amount of color remaining on said hair after a first washing following application is greater than 80% of the initial pigment color deposited. 
     
     
         3 . The method according to  claim 1 , wherein said aminosilicone polymer has a viscosity from about 500 to about 5,000 cP at 25° C. 
     
     
         4 . The method according to  claim 1 , wherein said aminosilicone polymer is branched. 
     
     
         5 . The method according to  claim 1 , wherein said aminosilicone polymer has the structure: 
       
         
           
           
               
               
           
         
       
       where
 x is an integer from 1 to 6, 
 y is an integer from 1 to 6, and 
 m and n are independently each an integer from 1 to 5,000 and are selected to provide a FGEW from about 1,000 to about 2,000 g/mol. 
 
     
     
         6 . The method according to  claim 5 , wherein x is 3 and y is 2. 
     
     
         7 . The method according to  claim 1 , wherein said non-spherical particulate material is a pigment or lake. 
     
     
         8 . The method according to  claim 7 , wherein said pigment is an iron oxide pigment. 
     
     
         9 . The method according to  claim 1 , wherein said non-spherical particulate material has a plate-like or elongated shape. 
     
     
         10 . The method according to  claim 1 , wherein said composition is a mascara. 
     
     
         11 . The method according to  claim 1 , wherein said hair is an eyelash.