Abstract:
The invention relates to a device and process for producing moulding compounds and coatings on substrates by curing radiation-curable compounds in an inert gas atmosphere by irradiating them with energy-rich radiation.
Abstract:
The invention relates to an apparatus and a method of producing molding materials and coatings on substrates by curing radiation-curable materials under an inert gas atmosphere by exposure to high-energy radiation.
Abstract:
The invention relates to an apparatus and a method of producing molding materials and coatings on substrates by curing radiation-curable materials under an inert gas atmosphere by exposure to high-energy radiation.
Abstract:
Method (M1) for determining radiation curing conditions for a coating material comprising a pigment, a binder and a photoinitiator comprises determining the integral transmission (T) of a pigment composition in a desired wavelength range and determining the variables required for radiation curing from T. Method (M1) for determining radiation curing conditions for a coating material comprising a pigment, a binder and a photoinitiator comprises providing a pigment composition or establishing the pigment composition necessary to achieve a desired color; measuring the reflectance spectrum of the pigment in the composition as a function of concentration, composition and/or film thickness; determining the concentration-specific absorption and scattering spectra (A and S) of the pigment from the measured reflectance spectrum in a desired wavelength range; measuring the reflectance (R) of a substrate in the desired spectral range; determining total absorption and total scattering values from the coating material on the substrate from A, S and R; determining the integral transmission (T) of the pigment composition in the desired wavelength range; and determining the variables required for radiation curing from T. Independent claims are also included for: (1) method (M2) for radiation curing a coating material as above on the basis of variables determined by M1; (2) apparatus for performing M2, comprising an irradiation unit, a computer and optionally a measuring unit, where the computer determines the required curing data by M1 and the irradiation unit performs the curing operation on the basis of the data; (3) business method for radiation curing in which a supplier provides a user with a program for performing M2 with an associated database comprising A and S data for pigments and substrates, or with data established with such a program, and the user performs a radiation curing operation on the basis of the data.