RINSE-OFF SKIN CARE COMPOSITIONS CONTAINING CELLULOSIC MATERIALS
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 cleansing agent selected from the group consisting of a saponified fat and a surfactant; 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 hydrophobic, linear cellulose particles are derived from cotton.
8 . A rinse-off skin care composition according to claim 1 wherein said hydrophobic, linear 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 surfactant is selected from the group consisting of anionic, nonionic, and amphoteric surfactants.
10 . A rinse-off composition according to claim 1 wherein said hydrophobic, linear cellulose particles are cotton.
11 . A rinse-off composition according to claim 10 wherein said hydrophobic, linear cotton particles are regenerated cotton.
12 . A rinse-off composition according to claim 1 wherein said hydrophobic, linear cellulose particles are rayon.
13 . A rinse-off composition according to claim 1 wherein said composition comprises from about 1 to about 20 percent by weight of said hydrophobic, linear 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 hydrophobic, linear 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 hydrophobic, linear cellulose particles.