Learning method for producing color formulas

Abstract

The invention relates to a learning method for calculating color formulas of pigmented color shades adjusted to match a target color shade, comprising the steps i) preparation of an effect matrix for the components present in a coloring system by suitable scaling, i) determining the optical material parameters of the target color shade, ii) selecting a suitable starting formulation, iii) determining the color difference between the initial formulation and the target color shade, iv) calculating a first adjusted color formulation considering the effect matrices, v) repeating the steps iv) and v) until an acceptable remaining color difference has been achieved, in which the effect matrices are constantly updated with information relevant to color shades in the running process, achieving an improvement to the prior known method of color shade formulation calculation both with regard to reduction in the number of shade steps required, and with regard to minimizing the remaining color difference.

Description

technical field [0001] The invention relates to a learning method for producing color formulas which can be adapted to fixed color specifications in a small number of steps. Background technique [0002] In the production of paint formulations, especially in the automotive industry, an important task is to prepare the shade with as little deviation as possible with respect to a previously determined target shade by weighing the components fixed in the color formulation produced in volume. Formulation components are understood both as colored substances such as color or effect pigments, and as non-colored substances such as binders, additives and solvents. In terms of process economy, the goal when tinting a furnish is to match the tint of the furnish to the target shade in as few tinting steps as possible. This matching is achieved by slightly varying the amount of colored ingredients contained in the formulation and sometimes by adding other colored low-intensity tint add...

AI Technical Summary

Problems solved by technology

In industrial series production this can lead to enormous costs, both through the necessary subsequent improvement of the finished product and through other matching time delays

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