Ink is a very important part of inkjet printing. The development of inkjet ink also explains the development of inkjet printing technology to a certain extent, because ink not only determines the quality of inkjet images, but also determines the ink droplets. Shape and reliability of the printing system. Inkjet inks generally consist of colorants, binders, and additives. The ink binder can be water, oily materials, solvents, resins, etc. It determines the dynamic properties of the ink distribution; in inkjet inks, the binders account for 40%-90%. The colorant plays a role of color development in the ink, generally accounting for 1%-10%. The rest is called additive, which is mainly used to improve the ink viscosity, adhesion strength, thermal stability, light resistance and surface tension.
In general, there are many types of ink used in the inkjet printing process, and there are many classification methods. Different types of inks are classified according to their properties. Generally, the inks are classified into water-based inks, oil-based inks, solvent-based inks, and thermosetting inks according to different linking materials. According to the color material, it can be divided into organic dye ink, polymeric dye ink and pigment ink; if the ink is used according to different drying mechanisms, the ink can be divided into volatile ink and polymeric ink.