Cosmetic preparation containing a metallic pigment
AssigneeEckart GmbH
InventorsPeter Krüger, Hans-Jörg Kremitzi
Life of this patent
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Abstract
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.
Claims10
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 SiO2;
- 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.
A cosmetic preparation as in any of the preceding claims, wherein it additionally contains benzotriazoles.
Dependencies are inferred from the claim text.