Pigment mixture

DETAILED DESCRIPTION We claim: 1.
A pigment mixture comprising a component A, which comprises undoped and transparent flakes consisting essentially of SiO.
sub.
2, which are coated with one or more metal oxides and/or metals, and a component B, which comprises a platelet-shaped, acicular or spherical colorant, or a filler.
2.
The pigment mixture according to claim 1, wherein said metal oxide is titanium oxide, zirconium oxide, zinc oxide, iron oxide and/or chromium oxide.
3.
The pigment mixture according to claim 1, wherein said metal is Cr, Ti, Mo, W, Al, Cu, Ag, Au and/or Ni.
4.
The pigment mixture according to claim 1, wherein said SiO.
sub.
2 flakes are coated with TiO.
sub.
2 and/or Fe.
sub.
2 O.
sub.
3.
5.
The pigment mixture according to claim 1, wherein component B comprises TiO.
sub.
2, colored SiO.
sub.
2, CaSO.
sub.
4, iron oxide, chromium oxide, colored glass particles, carbon black, silica, anthraquinone, quinacridone, diketopyrrolopyrrole, phthalocyanine, an azo pigment, an isoindoline pigment, BiOC1, colored glass fibers, Fe.
sub.
3 O.
sub.
4, .
beta.
-phthalocyanine, and/or an azomethine copper complex.
6.
The pigment mixture according to claim 1, wherein the ratio of component A to component B is 10:1 to 1:10 by weight.
7.
The pigment mixture according to claim 6, wherein said ratio of component A to component B is 1:2 to 2:1.
8.
The pigment mixture according to claim 1, wherein said SiO.
sub.
2 flakes are 0.
2 to 2.
0 .
mu.
m thick.
9.
The pigment mixture according to claim 1, wherein the length of said SiO.
sub.
2 flakes is 5 to 40 .
mu.
m.
10.
The pigment mixture according to claim 1, wherein said colorant and/or filler is acicular or spherical particles which are 0.
01 to 1 .
mu.
m in size.
11.
The pigment according to claim 1, further comprising, in said metal oxide coating, particles of finely divided TiO.
sub.
2 or finely divided carbon, wherein said particles are 10 to 250 nm in diameter.
12.
A varnish, paint, printing ink, plastic, powder coating material for coloring seed, cosmetic formulation or a food comprising the pigment mixture according to claim 1