Pigment refers to the substance that can make objects colored. There are soluble and insoluble pigments, and there are differences between inorganic and organic pigments. Inorganic pigments are generally mineral substances. Humans have long known to use inorganic pigments to paint and paint their bodies on rock walls using colored soil and minerals. Organic pigments are generally taken from plants and marine animals, such as indigo, gambog and purple extracted from shellfish in ancient Rome.

It is mainly used in paint, ink, printing and dyeing, plastic products, paper making, rubber products, ceramics and other industries. With the rapid development of downstream industries, the demand for pigments continues to expand, and the development prospect of China's pigment industry is very broad. It is an indispensable raw material for the manufacture of paints, inks, oil painting pastes, makeup paints, color paper, etc. It is also used for filling and coloring plastics, rubber products and synthetic fiber stock solution.