Application of Colorimeter in Pigment color scheme

This paper mainly introduces the characteristics of optically variable pigments, the basic principle of optically variable pigment color matching, color matching methods and steps, the instruments used for color matching, and the influencing factors of color matching, providing theoretical support and research for optically variable pigment color matching technology. Because the optically variable pigment is a light-interfering thin film, it has a special color-changing angle effect, and its color matching cannot simply use color measuring instruments such as a color difference meter or a Spectrophotometer , and it needs to be combined with human visual observation for comprehensive analysis and judgment. Visual observation of color must be carried out under standard light sources such as D65. At present, the light-changing industry is mainly used for color Measurement Instruments for color matching of light-changing pigments. There are Spectrophotometer s and multi-angle color difference meters. Characterized by L*a*b* values ​​at multiple angles.