The organic pigment industry technology not only includes the chemical reaction of organic pigment and its intermediate synthesis unit, but also involves the chemical structure of the solid particle surface of the organic pigment, the existence of specific substituents on its physical and chemical properties and applications (such as: color, light and weather fastness) , Heat stability and molecular polarity, etc.). Organic pigments are insoluble in the applied medium and color the substance with fine particles with specific surface characteristics.

According to the specific requirements of various applications, organic pigments can have the same chemical structure to prepare varieties with different application properties to achieve good results.

Organic pigments usually used for coloring of paints and paints should have sufficient durability, such as light fastness and weather fastness, and should also have high hiding power or specific transparency. It should be dispersed in oily or water-based paints. The medium has ideal solvent resistance stability, color and light stability, and no obvious flocculation phenomenon occurs during storage and use.

The organic pigments used in the coloring of rubber and resin-based plastics should be easily and uniformly dispersed in the material to be colored, and have good compatibility with resins. The pigments for rubber coloring should also be resistant to vulcanization, especially To have satisfactory thermal stability, the color and light will not change at the temperature of the molding process. When the plastic is colored, the pigment should also have good solvent resistance, migration resistance, and good stability to the commonly used plasticizers.

The three basic colors (yellow, magenta, cyan) used in printing inks have specific spectral characteristics, good vividness, and satisfactory transparency, especially in the widely used four-color overprinting process, respectively When overprinting in black, cyan, magenta and yellow, yellow pigments with excellent transparency should be used. In addition, in order to ensure the quality of printing ink, good dispersion performance is also very important. The ink used for printing iron should also withstand the temperature above 160~170℃ without changing the color and light.