Dyes and pigments are coloring materials, which are water insoluble. Key end-user industries of pigments include wood-coloring, stone, textiles, paints & coatings, food and metals. Pigment are usually manufactured as dry colorants and grounded into fine powder. As pigments are water insoluble it requires some special techniques for dyeing and printing. Some of the key pigments used across the world include dioxazine, fluorubine, isoindoline, perylene, perinone, and pyrocoline.