A bismuth vanadate pigment is provided which pigment is doped with a combination of Mg, Al and P and optionally an element E, wherein the molar ratios of the Bi, V, Mg, Al, P and E correspond to a formula
Bi Mg.sub.a Al.sub.b E.sub.c V.sub.d P.sub.e O.sub.f(I)
wherein E is selected from the group consisting of Be, Ca, Sr, Ba, Zr, Mo, Ce and a combination thereof; 0.001a0.2; 0.001b0.2; 0c1.7; 0.5d2.3; 0.001e0.5; and f denotes the number of oxygen atoms for satisfying the valence requirements of the cations. The pigment may be used as colorant in various applications, especially in coloring high molecular weight organic material, for example, coating compositions, paints, printing inks, liquid inks, plastics, films, fibers, or glazes for ceramics or glass.

The current technology is directed to red and red-shade violet pigments with an hexagonal ABO.sub.3 structure of the form Y(In, M)O.sub.3 in which M is substituted for In in the trigonal bipyramidal B site of the ABO.sub.3 structure, and where M is a mixture containing Co.sup.2+ and charge compensating ions, or M is a mixture containing Co.sup.2+ and charge compensating ions, as well as other aliovalent and isovalent ions.

The present invention relates to a golden interference pigment which is suitable, in particular, for printing processes, to a process for the preparation of a pigment of this type, and to the use thereof.

Disclosed herein is an aqueous colloidal titanium dioxide dispersion preferably having a pH value in a range of 6.2 to 7.8 at 25 C. and including titanium dioxide particles, the titanium particles having a Z-average particle size in a range from 30 nm to 220 nm as determined by dynamic light scattering and a particle size distribution span [(D90-D10)/(D50)] in a range from 0.7 to 1.5; one or more dispersing agents comprising groups which bind to the titanium dioxide particles; one or more organic solvents; and if necessary, one or more pH value adjusting compounds. Further disclosed herein are a method of preparing such dispersions, a coating composition containing the components of such dispersions, coated substrates and methods of coating the substrates with such dispersions and a method of using of the dispersions in the manufacture of coating compositions.

Provided is a black fine particulate near-infrared reflective material having exceptional hiding performance and coloring performance. A black fine particulate near-infrared reflective material which is a perovskite-type complex oxide containing at least an alkaline earth metal element, titanium element, and manganese element, wherein the black fine particulate near-infrared reflective material comprises microparticles in which the BET specific surface area of the powder body is within a range of 3.0-150 m.sup.2/g, the black fine particulate near infrared reflective material having exceptional hiding performance and coloring performance. The Hunter L value, as an indicator of blackness, is 30 or less, and the reflectivity at a wavelength of 1200 nm, as an indicator of near-infrared reflective power, is 40% or above. The black fine particular near-infrared reflective material is obtained by mixing an alkaline earth metal compound, a titanium compound, a manganese compound, and other materials in a wet grinding mill and firing the resulting mixture at a temperature of 800-1100 C.

An article including a reflector having a first surface and a second surface opposite the first surface; a first selective light modulator layer external to the first surface of the reflector; a second selective light modulator layer external to the second surface of the reflector; a first absorber layer external to the first selective light modulator layer; and a second absorber layer external to the second selective light modulator layer; wherein each of the first and second selective light modulator layers include a host material is disclosed herein. Methods of making the article are also disclosed.

A new material efficiently attenuating transmission of near-infrared light is provided. A provided near-infrared-shielding material includes a plurality of flaky particles, wherein each of the plurality of flaky particles includes a flaky substrate and a single-layer film formed on a principal surface of the flaky substrate, and the near-infrared-shielding material has a light reflectance of 40% or more between wavelengths of 800 nm and 1400 nm. The flaky substrate is, for example, a glass flake. The glass flake has an average thickness of, for example, 0.6 m or less. The single-layer film includes, for example, titanium oxide and has an average thickness of, for example, 80 nm to 165 nm.

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.