| abstract |
The present invention relates to an effect pigment comprising a colored hectorite prepared by an ion exchange process of an initial hectorite and a cationic dye, wherein the initial hectorite may be represented by formula (I), where n is The charge of K, z = x+2y, where 0.2 < z <0.8; x = 0-0.8; y = 0-0.4; K is Li + , Na + , K + , NH 4 + , Rb + , Cs + , Mg 2 + , Ca 2 + , Sr 2 + , Ba 2 + or a first group consisting of a mixture thereof, or 2 to 8 A cation selected from the second group consisting of alkylammonium salts having C-atoms and the alkyl may be branched or linear, or a mixture of cations from groups 1 and 2, where □ is an unoccupied octahedral lattice site Represents. In addition, such colored hectorites may have at least one layer with a high refractive index of >1.8 or a translucent metal and optionally a coating thereon comprising an outer protective layer. |