Rinse-off skin care compositions containing cellulosic materials

Abstract

The compositions and methods of this invention relate to a rinse-off skin care composition containing hydrophobic, linear cellulose particles having an average length of from about 1 to about 1000 μm, a particle aspect ratio from about 1000 to about 2 and a thickness of from about 1 to about 500 μm; at least one cleansing agent selected from the group consisting of a saponified fat and a surfactant; and a cosmetically acceptable carrier.

1 . A rinse-off skin care composition, comprising: hydrophobic, linear cellulose particles having an average length of from about 1 to about 1000 μm, a particle aspect ratio from about 1000 to about 2 and a thickness of from about 1 to about 500 μm; at least one surfactant comprising an amidoalkyl betaine in an amount of from about 5% to about 30% by weight of the composition; an alkyl acrylate crosspolymer present in an amount of from about 0.03% to about 1.6% by weight of the composition; and a cosmetically acceptable carrier. 
     
     
         2 . A rinse-off skin care composition according to  claim 1  wherein said hydrophobic, linear cellulose particles have an oil absorption capacity and retention of from about 150 to about 500% weight oil/weight particles. 
     
     
         3 . A rinse-off skin care composition according to  claim 2  wherein said oil absorption capacity and retention of said hydrophobic, linear cellulose particles is from about 300 to about 500% weight oil/weight particles. 
     
     
         4 . A rinse-off skin care composition according to  claim 1  wherein the water contact angle of said hydrophobic, linear cellulose particles is greater than about 90 degrees. 
     
     
         5 . A rinse-off skin care composition according to  claim 4  wherein said water contact angle is greater than about 100 degrees. 
     
     
         6 . A rinse-off skin care composition according to  claim 4  wherein said water contact angle is greater than about 120 degrees. 
     
     
         7 . A rinse-off skin care composition according to  claim 1  wherein said cellulose particles are derived from cotton. 
     
     
         8 . A rinse-off skin care composition according to  claim 1  wherein said cellulose particles are coated with a hydrophobic agent selected from the group consisting of metal soap, organic wax, synthetic wax, long-chain fatty acids, long-chain fatty esters, non-water soluble polymers, high molecular water-insoluble fluoropolymers, and polymerized siloxanes. 
     
     
         9 . A composition according to  claim 1  wherein said amidoalkyl betaine comprises cocoamidopropyl betaine. 
     
     
         10 . A rinse-off composition according to  claim 1  wherein said cellulose particles are cotton particles. 
     
     
         11 . A rinse-off composition according to  claim 10  wherein said cotton particles are regenerated cotton particles. 
     
     
         12 . A rinse-off composition according to  claim 1  wherein said cellulose particles are rayon particles. 
     
     
         13 . A rinse-off composition according to  claim 1  wherein said composition comprises from about 1 to about 20 percent by weight of said cellulose particles. 
     
     
         14 . A rinse-off composition according to  claim 1  wherein said composition comprises from about 1 to about 10 percent by weight of said cellulose particles. 
     
     
         15 . A rinse-off composition according to  claim 1  wherein said composition comprises from about 1 to about 6 percent by weight of said cellulose particles. 
     
     
         16 . A rinse-off composition according to  claim 1  wherein said composition further comprises at least one additional anionic, nonionic or amphoteric surfactant.