Eckart Gmbh

Michael Becker

Stefan Trummer

Stefan Engel

Dieter Proelss

Thomas Schlegl

Katrin Wczasek

Wolfgang Herzing

Andreas Kroell

Dörte Reitzenstein

Alexandra Lindl

Yvonne Plitzko

Ralf Deinzer

Svea Heitmar

Dieter PRÖLß

Karin Wczasek

Helga Opper-Linnert

The invention relates to aluminum pigments which are at least partially coated with lubricant, wherein the aluminum pigments have a relative breadth of thickness distribution &#x394;h of from 30% to less than 70%, as determined by a scanning electron microscope thickness count and as calculated on the basis of the corresponding cumulative breakthrough curve of the relative frequencies of occurrence, according to the formula &#x394;h=100&#xd7;(h&#x2212;h)/h, and an X-ray diffractogram, measured on pigments in substantially plane-parallel orientation, having one or two main peaks which do not correspond to the [111] reflexes. The invention further relates to a method for the production of said aluminum pigments and to uses thereof and also to nail varnishes and printing inks containing said aluminum pigments of the invention.

Thin aluminum pigments having a narrow thickness distribution, method for producing same, and use of aluminum pigments

The invention relates to an offset printing ink containing platelet-shaped aluminum pigments with an average thickness hranging from 15 to 80 nm, binders, and solvents. The invention is characterized in that the platelet-shaped aluminum pigments are produced using a PVD method and are at least partly coated with a leafing additive, and the offset printing ink has a viscosity of 4 to 15 Pa s, measured on a sample which is temperature-controlled at 25&#xb0; C. by means of a rotation viscometer with a cone/plate geometry under a shear stress of 185.9 Pa. The invention further relates to a method for producing a high-gloss printed metal image on a substrate, having the following steps: a) optionally applying a primer onto the substrate; b) applying an offset printing ink according to the invention onto the primer layer or onto the substrate, thereby forming a high-gloss printed layer B, and c) optionally applying additional color layers C onto the layer B.

Metal offset printing ink with specular gloss, and printing method

Platelet-shaped, copper-containing, metallic effect pigments which have a copper content of 60% to 100% by weight, based on the total metal content, the metal pigments having a thickness distribution as determined via thickness counting by scanning electron microscopy (SEM) and represented as cumulative undersize distribution,

Platelet-shaped, copper-containing, metallic effect pigments, process for preparing them and use thereof

A mixture of platelet-shaped, copper-containing metallic effect pigments having a copper content of 60% to 100% by weight, based on the total metal content, with at least one further component, where the copper-containing metallic effect pigments have a thickness distribution, determined via thickness counting by scanning electron microscopy (SEM) and represented as cumulative undersize distribution,

Mixture of copper-containing metal effect pigments and method for the production thereof

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Lauf, Germany

Michael Becker