Optical Properties of Pearl Pigments
Refraction causes the colors observed to change along the light spectrum. The painted surface exhibits different colors of the rainbow depending on the angle on which the light is falling on it. The colors are richer when the refractive indexes are precise and the substrates are impurity-free. That is why synthetic pearl pigments have better colors and luster. Pearl pigment manufacturers such as KP Pigmentscan ensure that the synthetic substrates they produce are pure and transparent.
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