Solid component in a pigment ink, color material for ink, pigment generally is insoluble in water. Ink color saturation, color strength, transparency and other properties and properties of pigments have a close relationship.Binders are inks for liquid ingredients, pigments are carriers. In the process of printing, binders carrying particles of pigment, ink from the printing press half the rollers, plates, traveled to the substrate forming ink, fixing and drying and adhesion on the substrate. Ink gloss, drying, mechanical strength and binders of performance. Add ink additives, is to improve the printability of the ink, such as viscosity, adhesive, drying, and so on.