Paints have been present since ancient times but they began to be commonly used only since the nineteenth century. Today, paints not only lend color to several applications but also offer protection to surfaces on which they are used. In addition to painting houses, paints are used to give color to automobiles, underground storage vessels, road markings, ships and many more items.
Dyes and pigments are two kinds of colorants that have found their way into every aspect of our lives. As far as the industrial sector is concerned, several types of dyes and pigments are being used in large amounts in a series of applications. Dyes are soluble substances which have an affinity towards the substrate and the industries which find use for them are leather, textile, cement, plastic, paper industry and many more. Pigments on the other hand are insoluble substances and are available in granular or powder form. Their mode of imparting colour is through the reflection of specific light rays. The industries where pigments find maximum use are the inks and paint industry.
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