Abstract: The invention relates to a method of printing onto the surface of a substrate, which method comprises a. coating a donor surface with individual particles, b. treating the surface of the substrate to render the affinity of the particles to at least selected regions of the surface of the substrate greater than the affinity of the particles to the donor surface, and c. contacting the surface of the substrate with the donor surface to cause particles to transfer from the donor surface only to the treated selected regions of the surface of the substrate, thereby exposing regions of the donor surface from which particles are transferred to the corresponding regions on the substrate, and wherein that at least 50 wt.

Abstract: The invention relates to a pigment preparation with metal effect pigments, wherein the pigment preparation contains metal effect pigments the average size d50 of which lies in a range of from 1.7 to 2.8 ?m and the average thickness h50 of which lies in a range of from 15 to 50 nm, as well as at least one polycarboxylic acid. In addition, the invention relates to a method for producing this pigment preparation as well as the use of same.

Abstract: A 1K UV-ink jet printing ink composition comprising effect pigments, wherein the composition comprises: a) at least one difunctional (meth)acrylate monomer, b) at least one photoinitiator, c) effect pigments having a volume averaged particle size distribution with a D98<10 ?m, d) optionally trifunctional and/or polyfunctional (meth)acrylate monomers, and wherein the viscosity of the ink jet printing ink composition is at maximum 30 mPas, measured at 25° C. for 10 minutes with a Brookfield R/S rheometer using a double gap cylinder according to DIN 53453 (German Industrial Standards) at 150 rpm and wherein the total concentration of the at least one difunctional (meth)acrylate monomer of a) and the trifunctional and/or polyfunctional (meth)acrylate monomers of d) is in a range of 75 to 100 wt.-%, based on the total amount of (meth)acrylate monomers.

Abstract: Aluminium effect pigments having the following properties: a) a d50-value of the volume averaged particle size distribution curve of 1 ?m to 15 ?m, b) an average thickness h50 of 15 to 150 nm determined by counting from SEM images, c) an x-ray diffractogram measured on said aluminium effect pigments in essentially plane-parallel alignment showing main peaks which are not [111]- or [222]-reflections. Furthermore, the disclosure relates to an ink jet printing ink and a method of producing an ink jet printing ink and the use of aluminium effect pigments as well as an ink jet printing ink.

Abstract: A process for producing a dispersion containing metal oxide nanoparticles in a liquid phase, wherein the process comprises the following steps: (a) atomization of a metal melt to give a metallic powder, (b) optionally deformation of the metallic powder obtained in step (a), (c) oxidation of the metallic powder obtained in step (a) or (b) to give a metal oxide powder, (d) comminution of the metal oxide powder obtained in step (c) in the presence of a liquid phase to give a dispersion whose metal oxide particles have a particle size d90,oxide of less than 300 nm. The invention further relates to a dispersion which can be obtained by the process of the invention.

Abstract: Aluminium effect pigments having the following properties: a) a d50-value of the volume averaged particle size distribution curve of 1 ?m to 15 ?m, b) an average thickness h50 of 15 to 150 nm determined by counting from SEM images, c) an x-ray diffractogram measured on said aluminium effect pigments in essentially plane-parallel alignment showing main peaks which are not [111]- or [222]-reflections. Furthermore, the disclosure relates to an ink jet printing ink and a method of producing an ink jet printing ink and the use of aluminium effect pigments as well as an ink jet printing ink.