The invention relates to a nail varnish composition comprising: a) an embossed effect pigment comprising a metallic substrate in platelet form with embossed structure having a periodic pattern with diffractive elements, said substrate having been produced by PVD methods, and optionally at least one coating applied to the substrate, wherein the substrate has an elemental metal content of 80% to 100% by weight, based on the substrate, and wherein the effect pigment has been treated with a leafing additive for surface modification, b) at least one hydrocarbon resin as binder, c) at least one solvent or solvent mixture and d) optionally further auxiliaries.

The invention further relates to a process for producing the nail varnish composition.

A golden effect pigment comprising an optionally passivated platelet-shaped metallic substrate and an iron oxide layer, wherein the effect pigment has a hue angle h.sub.15 of 67h.sub.1578 and a chroma C*.sub.15 of 90 is provided. Further, a golden effect pigment comprising an optionally passivated platelet-shaped metallic substrate and an iron oxide layer, wherein the effect pigment has a hue angle h.sub.15 of 67h.sub.1578 and a chroma C*.sub.45 of 50 is provided. The golden effect pigments are highly chromatic and suitable for coloring a coating composition such as a paint, a printing ink, an ink, a varnish, plastics, a fiber, a film or a cosmetic preparation, preferably an automotive, an architectural or an industrial coating composition

Provided is a multi-layer coating film including a base film and an infrared-reflective film, wherein the infrared-reflective film includes a scale-like infrared-reflective pigment and a resin; the pigment includes a layered body that has dielectric layers and a metal layer layered in an alternate fashion with the dielectric layer on the outermost layer; the dielectric layer is formed from one or more materials such as titanium dioxide; the metal layer is made from a silver compound; a film thickness of the metal layer is 5 to 15 nm; a film thickness of the dielectric layer is ((N)/(4r))20 nm (N is 1, 2 or 3, wavelength is 250 to 980 nm, r is the refractive index of the dielectric layer); the infrared reflectance R1 of the base film is smaller than 80% and is smaller than the infrared reflectance R2 of the infrared-reflective film.

The invention relates to coated effect pigments, wherein the coating comprises a binder which is suitable for powder paints. They comprise a crystalline and an amorphous fraction which is determined by C.sup.13 NMR MAS relaxation measurements, the relaxation of the .sup.13C cores being fitted as a biexponential relaxation according to the formula (II) and the degree of crystallinity c being in a range between 40 to 85%, and relaxation having a short average relaxation time T.sub.1.sup.S and a long average relaxation time T.sub.1.sup.I, and T.sub.1.sup.I being in a range of from 65 to 130 s. The effect pigments coated according to the invention have at least one endothermic peak with a maximum from a range of T.sub.max=100 to 150 C. and an enthalpy H associated with said peak from a range of 15 J/g to 80 J/g in DSC at a feed speed of 5 C./min, the enthalpy being calculated relative to the amount of the binder. The binders are applied to the effect pigment by way of spontaneous precipitation.

[00001]$\begin{array}{cc}M\left(t,M_0,a,c,T_1^s,T_1^l\right)=M_0.Math.\left[\left(1-c\right).Math.\left(1-a.Math.e^{-\left(\frac{t}{T_1^s}\right)}\right)+c.Math.\left(1-a.Math.e^{-\left(\frac{t}{T_1^l}\right)}\right)\right]& \left(\mathrm{II}\right)\end{array}$

A pigment composition according to an embodiment includes aluminum flakes coated with a plurality of metal oxide layers and TiO2 coated with a metal oxide layer, thus having explosion stability. The pigment composition may be prepared by mixing with TiO2 coated with a metal oxide layer having lower apparent specific gravity as compared to other plate-shaped inorganic particles. The pigment composition can have stability against a thermite reaction by aluminum and metal oxides while preventing deterioration of saturation and opacity.

There is disclosed a lamellar particle including an unconverted portion of the lamellar particle, wherein the unconverted portion includes a first metal, a converted portion of the lamellar particle disposed radially outward of at least one of a surface of the unconverted portion, wherein the converted portion includes a chemical compound of the first metal.

The present invention provides a magnetic multilayer pigment flake and a magnetic coating composition that are relatively safe for human health and the environment. The pigment flake includes one or more magnetic layers of a magnetic alloy and one or more dielectric layers of a dielectric material. The magnetic alloy is an iron-chromium alloy or an iron-chromium-aluminum alloy, having a substantially nickel-free composition. The coating composition includes a plurality of the pigment flakes disposed in a binder medium.

A method for forming a multilayer thin film structure includes directly depositing an absorber layer to encapsulate a dielectric layer, and the dielectric layer encapsulates a reflective core particle. The method further including depositing an outer layer to encapsulate the absorber layer, and the multilayer thin film structure has a hue shift of less than 30 in the Lab color space when viewed at angles from 0 to 45.

The present invention relates to particles comprising a core, in particular a magnetic core, and a first coating of a first shell material, wherein a second coating of a second shell material is applied to the surface of the first coating facing away from the core, the second shell material is different from the first shell material and has a higher refractive index than the first shell material.

The present invention relates to pearlescent pigments, to a process of manufacturing such pearlescent pigments based on a wet oxidation step as well as to the use of such pearlescent pigments.