Generally, organic pigments are classified according to their chemical structural types into azo, phthalocyanine, and heterocyclic categories, and according to their color spectrum into yellow, orange, red, purple, blue, green, and so on. Among them, azo and heterocyclic pigments are mainly yellow, orange, red, and purple varieties; phthalocyanines dominate the blue and green spectrum of organic pigments. Phthalocyanine pigments offer excellent durability, high color fastness, safety, and environmental friendliness, and are relatively economical. They are irreplaceable organic pigments in the blue and green color spectrum. Currently, the production of phthalocyanine pigments accounts for about 28% of the total organic pigment production. With the increasing environmental protection requirements and the development of specialized pigment varieties, it is anticipated that the demand for phthalocyanine series pigments will continue to grow, and they possess good development potential.