Abstract: A process for the generation of a computer image of a coated, three-dimensional object involves applying at least a relevant coating layer on at least two test panels under the influence of a set of coating parameters which differs with respect to each panel; taking a plurality of measurements of at least one optical surface property as a function of the set of coating parameters selected on application of the relevant coating layer on each panel; storing the optical data in a datafile with assignment of the relevant set of coating parameters; facetting the visible surface(s) of a three-dimensional object by computer into a sufficient number of flat polygonal areas each being sufficiently small for the sufficiently accurate description of the surface topography; assigning the relevant set of coating parameters and associated optical data in each case to each individual polygonal area by computer; and assembling the polygonal areas into a computer image of the three-dimensional object.

Abstract: A process for determining changes in a liquid medium, in particular a liquid coating agent or its components, caused by shear stress, in which a given volume of the medium is allowed to pass repeatedly through a shear unit under reproducible conditions.

Abstract: A process for the generation of a computer image of a coated, three-dimensional object involves preparing a coating comprising a relevant coating layer with variable layer thickness on one or more test panels; taking a plurality of measurements of one or more optical surface properties as a function of the layer thickness of the relevant coating layer; storing the optical data in a datafile with assignment of the layer thickness of the relevant coating layer; facetting the visible surface(s) of a three-dimensional object by computer into a sufficient number of flat polygonal areas each being sufficiently small for the sufficiently accurate description of the surface topography; assigning layer thickness of the relevant coating layer and associated optical data in each case to each individual polygonal area by computer; and assembling the polygonal areas into a computer image of the three-dimensional object.

Abstract: A process for determining changes in a liquid medium, in particular a liquid coating agent or its components, caused by shear stress, in which a given volume of the medium is allowed to pass repeatedly through a shear unit under reproducible conditions.

Abstract: A process for generating a computer image of a three-dimensional object provided with a special-effect coating, involves coating a test panel with the coating, taking a plurality of angle-dependent colorimetric measurements of the coating; storing the calorimetric data in a datafile with assignment of the corresponding angles; facetting the visible surfaces of a three-dimensional object by computer into a sufficient number of flat polygonal areas each being sufficiently small for the sufficiently accurate description of the surface topography; assigning the colorimetric data to each individual polygonal area by computer as a function of the position of an observer and at least one illumination source; and assembling the polygonal areas into a computer image of a three-dimensional object with a visually perceptible special-effect coating thereon.

Abstract: A process and a device for determining changes in a liquid medium, in particular a liquid coating agent or its components, caused by shear stress, in which a given volume of the medium is allowed to pass repeatedly through a shear unit under reproducible conditions.

Abstract: A process for the generation of a computer image of a coated, three-dimensional object involves applying at least a relevant coating layer on at least two test panels under the influence of a set of coating parameters which differs with respect to each panel; taking a plurality of measurements of at least one optical surface property as a function of the set of coating parameters selected on application of the relevant coating layer on each panel; storing the optical data in a datafile with assignment of the relevant set of coating parameters; facetting the visible surface(s) of a three-dimensional object by computer into a sufficient number of flat polygonal areas each being sufficiently small for the sufficiently accurate description of the surface topography; assigning the relevant set of coating parameters and associated optical data in each case to each individual polygonal area by computer; and assembling the polygonal areas into a computer image of the three-dimensional object.

Abstract: A process for the generation of a computer image of a coated, three-dimensional object involves preparing a coating comprising a relevant coating layer with variable layer thickness on one or more test panels; taking a plurality of measurements of one or more optical surface properties as a function of the layer thickness of the relevant coating layer; storing the optical data in a datafile with assignment of the layer thickness of the relevant coating layer; facetting the visible surface(s) of a three-dimensional object by computer into a sufficient number of flat polygonal areas each being sufficiently small for the sufficiently accurate description of the surface topography; assigning layer thickness of the relevant coating layer and associated optical data in each case to each individual polygonal area by computer; and assembling the polygonal areas into a computer image of the three-dimensional object.

Abstract: Method for the contactless measurement of optical parameters on a plane coating layer applied from a liquid coating compound or a liquid component of a coating compound having one or more optical measuring instruments, in which the coating layer is applied to the outer surface of a circulating carrier strip (closed upon itself) stretched over a drive roller and one or more tensioning rollers and the contactless optical measurement is then performed on the coating layer at a plane point on the carrier strip, wherein the carrier strip may be circulating during the measurement.