A composite pigment containing a substrate particle and a pigment layer arranged on a surface of the substrate particle, wherein the pigment layer contains a pigment, a resin and a metal oxide, and the metal oxide contains at least one selected from the group consisting of a silicon oxide, a polysiloxane, and composites thereof.

The invention relates to a colored pigment particle, a method for obtaining said colored pigment particle, and a composition comprised of said particle. In addition, the invention refers to the use of said colored pigment particle.

The disclosure relates to a method for mechanochemical preparation of an iron red pigment, which comprise steps: mixing a clay mineral, a soluble iron source and an alkali source in a mill for grinding to obtain a precursor, wherein the ratio of ball to material is controlled at 20-50, the grinding speed is 300-1200 rpm, and the grinding time is 30-360 min; and calcining the precursor at 500-900° C. for 30-120 min to obtain a high-performance iron oxide red/clay mineral hybrid pigment. The iron oxide red/clay mineral hybrid pigment has a bright and beautiful color, high-temperature and acid resistance, and can satisfy requirements for high-performance iron oxide red pigments in fields of paints, inks, ceramics, anti-corrosive coatings, etc. Furthermore the method is a simple process without waste that is environmentally friendly and suitable for industrialized production, thus it is expected to replace existing processes of iron oxide red pigments.

The titanium material includes a titanium oxide layer formed on a surface of titanium being a base material, the titanium oxide layer having a thickness measured by a glow discharge spectrometry of 60 to 300 nm, wherein: the titanium oxide layer contains 0.5 to 7.0 at % of nitrogen, and an arithmetic mean roughness Ra of a surface thereof is 2.0 to 4.0 μm; and a power spectrum of a surface roughness of the titanium material has a peak of an amplitude height of 0.005 to 0.020 μm in a range of a wavelength of 1.1 to 2.5 μm and has a peak of an amplitude height of 0.0010 to 0.0030 μm in a range of a wavelength of 0.80 to 0.98 μm. An L*a*b* color space may be L*: 30 to 40, a*: 2.0 to 9.0, and b*: −7.0 to 18.0.

A method for producing a particle, containing a step of heating a mixture containing TiH.sub.2 and TiO.sub.2 at 700 to 900° C., wherein a molar ratio of the TiH.sub.2 to the TiO.sub.2 contained in the mixture is 3.1 to 4.6. A particle having a crystal composition composed of Ti.sub.2O.sub.3 and γ-Ti.sub.3O.sub.5, wherein a molar ratio of the Ti.sub.2O.sub.3 to the γ-Ti.sub.3O.sub.5 is 0.1 or more.

Modified copper chromite spinel pigments exhibit lower coefficients of thermal expansion than unmodified structures. Three methods exist to modify the pigments: (1) the incorporation of secondary modifiers into the pigment core composition, (2) control of the pigment firing profile, including both the temperature and the soak time, and (3) control of the pigment core composition.

A composition comprising titanium dioxide and additives useful for enhancing the optical performance of titanium dioxide or for allowing substitution of at least part of the titanium dioxide in said composition for additives. At least two additives are added, wherein a first additive comprises a composite pigment and a second additive comprises a reactive polymer. The invention also provides a method for enhancing the optical properties of titanium dioxide compositions.

An infrared reflecting fiber includes 76.0 parts by weight to 88.5 parts by weight of a carrier, 1.8 parts by weight to 4.0 parts by weight of an infrared reflecting composition, 2.5 parts by weight to 7.5 parts by weight of a titanium dioxide containing composition, and 6.0 parts by weight to 16.0 parts by weight of a color adjusting composition. The carrier includes polyethylene terephthalate (PET). When a content of 5.0 wt % to 7.5 wt % of the infrared reflecting composition and a balance of the carrier are mixed together to form a first fiber, a maximum infrared reflectivity of the first fiber is between 61% and 70%.

The present invention relates to effect pigments which are based on flake-form substrates having a circular form factor of 1.2-2 and are coated with at least one high-refractive-index layer, and to the use thereof, inter alia in paints, coatings, printing inks, plastics and in cosmetic formulations.

An inorganic paint pigment may include a fluid matrix, and paint flakes carried within the fluid matrix. Each paint flake may include a common aluminum layer having a first major surface and a second major surface opposing the first major surface, a first plasmonic aluminum reflector layer carried by the first major surface, and a second plasmonic aluminum reflector layer carried by the second major surface.