The present invention relates to a pigment mixture based on at least two components A and B, where component A is a mixture of flake-form and spherical substrates which is covered with one or more inorganic layers and/or organic layers,
and component B comprises crystalline or amorphous particles selected from the group of the metal oxides, metal hydroxides, metal oxyhalides, Prussian Blue or mixtures thereof,
and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, in cosmetic formulations, as tracer, as filler and for the preparation of pigment preparations and dry preparations.

The present invention relates to a pigment mixture based on at least two components A and B, where component A is a mixture of flake-form and spherical substrates which is covered with one or more inorganic layers and/or organic layers, and component B comprises crystalline or amorphous particles selected from the group of the metal oxides, metal hydroxides, metal oxy-halides, Prussian Blue or mixtures thereof,

and to the use thereof in paints, coatings, printing inks, security printing inks, plastics, ceramic materials, glasses, in cosmetic formulations, as tracer, as filler and for the preparation of pigment preparations and dry preparations.

An asymmetric pigment including a first Fabry-Perot structure; and a second Fabry-Perot structure; wherein the first Fabry-Perot structure and the second Fabry-Perot structure have a similar hue angle within +/−45 degrees is disclosed. Other asymmetric pigments are also disclosed as well as methods of making the disclosed pigments.

There is disclosed a security device, including a substrate; a first color-shifting pigment on a first region of the substrate; and a second pigment, including at least three dielectric layers, on a second region of the substrate; wherein the first color-shifting pigment and the second pigment color match at a first viewing angle. Methods of making and using the security device are also disclosed.

An asymmetric pigment including a first Fabry-Perot structure; and a second Fabry-Perot structure; wherein the first Fabry-Perot structure and the second Fabry-Perot structure have a similar hue angle within +/45 degrees is disclosed. Other asymmetric pigments are also disclosed as well as methods of making the disclosed pigments.

A pigment, including a flake including a metal core having a first surface and a second surface, a first dielectric layer interfacing with a first surface of the metal core, and a second dielectric layer interfacing with a second surface of the metal core; a first inorganic layer encapsulating the flake; and an organic layer encapsulating the first organic layer is disclosed. A colorant composition including the pigment is also disclosed. A method of making the pigment, and a method of making a colorant composition are also disclosed.

There is disclosed a security device, including a substrate; a first color-shifting pigment on a first region of the substrate; and a second pigment, including at least three dielectric layers, on a second region of the substrate; wherein the first color-shifting pigment and the second pigment color match at a first viewing angle. Methods of making and using the security device are also disclosed.

A pigment, including a flake including a metal core having a first surface and a second surface, a first dielectric layer interfacing with a first surface of the metal core, and a second dielectric layer interfacing with a second surface of the metal core; a first inorganic layer encapsulating the flake; and an organic layer encapsulating the first organic layer is disclosed. A colorant composition including the pigment is also disclosed. A method of making the pigment, and a method of making a colorant composition are also disclosed.

A color shifting security device has a Fabry-Perot type structure wherein a dielectric layer is disposed between a reflector and an absorbing layer. The absorber and reflector layers may be conforming and the dielectric layer therebetween is non-conforming, filling the regions in the micro structured adjacent absorbing or reflecting layer, at least one of which has a microstructure therein or thereon. By having the dielectric layer not conform to the microstructure it is next to, its thickness varies in cross section, which allows for different colors to be seen where the thickness varies.

An asymmetric pigment including a first Fabry-Perot structure; and a second Fabry-Perot structure; wherein the first Fabry-Perot structure and the second Fabry-Perot structure have a similar hue angle within +/45 degrees is disclosed. Other asymmetric pigments are also disclosed as well as methods of making the disclosed pigments.