Cosmetic preparation containing a metallic pigment
The invention relates to a cosmetic preparation containing a metallic effect pigment which consists of a metal substrate having a layer enclosing the substrate. Said layer is produced in a sol/gel method, has a barrier effect against sweat and saliva and prevents a direct contact between skin and metallic substrate, the metallic pigment being hydrophilic. The inventive preparation can be in the form of a cream, a lotion, an eye shadow, a nail varnish, a lipstick, a mascara, a gel, a make-up formulation or a self-tanning cream or lotion.
1. In a cosmetic preparation comprising a pigment and a carrier material or base formulation,
the improvement wherein the pigment comprises
a metal-effect pigment consisting of a metallic substrate and a single layer coating encapsulating the substrate, produced in a sol-gel process,
said single layer providing a barrier effect with respect to sweat and saliva and preventing direct contact between the human body and the metallic substrate,
said metal-effect pigment being water-wettable;
wherein the single layer encapsulating the substrate consists essentially of SiO 2 ; and
wherein silica particles generating the coating of the metal-effect pigment have an average diameter of <100 nm and the preparation feels accordingly smooth in its application.
2. A cosmetic preparation according to claim 1 , in the form of a creme, a lotion, an eye shadow, a lipstick, a mascara, a gel, a make-up formulation, or a self-tanning creme or lotion.
3. A cosmetic preparation according to claim 1 , wherein it imparts a uniform optical impression of the skin without changing the color of the skin.
4. A cosmetic preparation according to claim 1 , wherein it evens out or covers up skin impurities.
5. A cosmetic preparation according to claims 1 , wherein it contains a weight percentage of 0.2% to 40% of said metal-effect pigment.
6. A cosmetic preparation according to claim 1 , wherein it is a nail polish.
7. A cosmetic preparation according to claim 6 , wherein it is based on nitrocellulose.
8. A cosmetic preparation as in any of the preceding claims, wherein it additionally contains benzotriazoles.
9. The cosmetic preparation of claim 5 wherein said weight percentage of metal-effect pigment is 0.2 to 10%.
10. The cosmetic preparation of claim 5 wherein said weight percentage of metal-effect pigment is 0.2 to 5%.