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Take pearlescent pigments as an example, pearlescent pigments are a class of pigments with pearl luster, which are deposited on the substrate (generally natural mica, synthetic mica, glass sheet and other sheet-like materials) above a layer or alternately deposited multiple layers of metal oxides or non-metallic oxides and formed a flat sandwich body with a structure similar to sandwich. Due to the difference in refractive index between the substrate and the oxide deposited on its surface and each oxide, when the light shines on the surface of the pearlescent pigment, the incident light will be refracted and reflected at the interface of each layer of the pearlescent pigment, and the color of the pearlescent pigment that people see is the result of the superposition of light after multiple refractions and reflections of the light, that is, the interference phenomenon of light.

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pearlescent pigment powder_what are mica powders used for

Mica is a group of silicate minerals known for their sheet-like structure and excellent light-reflecting properties. Natural mica is mined from the earth, processed, and often used to create pearlescent pigments. These pigments are primarily composed of a mica substrate coated with metal oxides, which interact with light to produce a shimmering, iridescent effect. The unique interplay between light and the layered structure of the mica creates a depth of color that synthetic pigments often struggle to replicate.


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pearlescent pigment powder_what are mica powders used for