Pearlescent pigments containing cosmetic compositions

摘要

The present invention is directed to a cosmetic composition comprising an effect pigment based on a glass flake as a substrate with a coating, said coating comprising at least one layer of at least one high refractive material, said material having a refractive index of at least 1.8, and/or a semitransparent metal coating wherein said glass flakes comprising the following composition: 65-75 wt.-% silicon oxide, preferably SiO2 2-9 wt.-% aluminium oxide, preferably Al2O3 0.0-5 wt.-% calcium oxide, preferably CaO 5-12 wt.-% sodium oxide, preferably Na2O 8-15 wt.-% boron oxide, preferably B2O3 0.1-5 wt.-% titanium oxide, preferably TiO2 0.0-5 wt.-% zirconium oxide, preferably ZrO2 based on the weight of said glass flakes. The invention is also directed to the use of the cosmetic composition.

主权项

1. A cosmetic composition comprising an effect pigment based on a glass flake as a substrate with a coating, said coating comprising at least one layer of at least one high refractive material, said material having at least one of a refractive index of at least 1.8, and a semitransparent metal coating,
wherein said glass flakes comprise the following composition: 67-73 wt.-% of silicon oxide; 4-7 wt.-% of aluminum oxide; 0.5-2.5 wt.-% of calcium oxide; 6-11 wt.-% of sodium oxide; 8.5-14 wt.-% of boron oxide; 0.5-2.5 wt.-% of titanium oxide; 0.1-1.5 wt.-% of zirconium oxide; and 1-4 wt.-% of at least one of potassium oxide, lithium oxide, and magnesium oxide, wherein the wt.-% is based on the weight of said glass flakes; wherein the difference between the refractive index of the glass flakes and the subsequently applied at least one layer of high refractive material is at least 0.6; wherein the at least one high refractive material is selected from the group consisting of metal chalcogenides, metal oxyhalides, metal nitrides, metal carbides, semitransparent metals and mixtures thereof; and wherein components used in producing said glass flakes meet at least one of the following criteria: (a) the silicon oxide is SiO2; (b) the aluminum oxide is Al2O3; (c) the calcium oxide CaO; (d) the sodium oxide is Na2O; (e) the boron oxide is B2O3; (f) the titanium oxide is TiO2; and (g) the zirconium oxide is ZrO2.