Lake pigment Lake pigment A lake pigment is a pigment made by precipitating a dye with an inert binder, or "mordant", usually a metallic salt. Unlike vermilion, ultramarine, and other pigments made from ground minerals, lake pigments are organic. Manufacturers and suppliers to artists and industry frequently omit the "lake" designation in the name. Many lake pigments are fugitive because the dyes involved are not lightfast. Red lakes were particularly important in Renaissance and Baroque paintings; they were often used as translucent glazes to portray the colors of rich fabrics and draperies. The term "lake" is derived from the term lac, the
Alumina effect pigment of all layers in the pigment structure, including the AlOsubstrate. Analytical investigations show that the thickness range of the aluminum oxide platelets and the resultant pigments can be controlled very precisely. The sparkle effect of the pigments in coating applications is controlled by the quantity of the added pigment. The effect is visible already at concentrations of 0.1% in the paint system. The intensity is steadily increased up to pigment concentrations of about 2%. The single light spots arising from the pigment structure and orientation in the paint system seem to spring back and forth when a painted metal plate