Printing ink is a paste colloid formed by evenly dispersing and mixing pigment, binder, filler and other materials. The pigment gives the printed matter rich and colorful colors; The binder, as the carrier of the pigment, also serves as the adhesive to fix the pigment on the surface of the substrate; The filler endows the ink with appropriate properties, so that the ink can meet the printing suitability of various printing processes.
The ink should have a certain fluidity, meet the properties required by various printing processes, and be able to dry quickly on the printed matter. The dried ink film should have corresponding resistance to water, acid, alkali, light, abrasion, etc.
