Method of producing matched coating composition and device used therefor

摘要: The present invention is directed to a method and device that use spectral measurements of the color target coating on substrate, such as auto body being matched. utilizes pigment mixture models produce matched composition when applied matches in appearance with coating, while also providing other desired properties, durability, gloss adhesion. Various colorant combinations are analyzed approximate curves substantially match curve color. A optimization function then used identify optimum formula. This acceptability factors, closeness based tolerance formula, metamerism indices, shape curves, cost, durability. Each factor weighted according specific end-use composition. well suited for producing automotive refinish paints applications wherein undamaged portion autobody paint can be over repaired autobody.