Ink is an important material used for printing, which expresses patterns and words on the substrate through printing or spray painting. Ink includes the main components and auxiliary components, which are evenly mixed and repeatedly rolled to form a viscous colloidal fluid. Composed of binder (resin), pigments, fillers, additives, and solvents. Used for various printing purposes such as books and magazines, packaging and decoration, building decoration, and electronic circuit boards.