
Pigment Red 57:1, universally known as Lithol Rubine, is one of the most important red pigments in the industry. It is a monoazo pigment that produces a clean, strong, bluish-red (rubine) shade. Its primary application is as the standard process magenta in four-colour printing (CMYK). It is valued for its shade purity, high colour strength, and excellent performance in ink formulations.