To put it more vividly, pigment ink is powder ink. Of course, this is just a figurative term and not accurate enough. To be more precise, it is a suspension solution or semi solution that grinds solid pigments into very small particles and dissolves them in a special water solvent. It has the same properties as the pigments used in printing and dyeing clothes. The principle of color formation is completely opposite to the infiltration of dye ink into the medium. It is achieved by attaching the color material to the surface of the medium.
The advantage is that the pigment itself is waterproof and not easily decomposed by ultraviolet rays, so it has strong water resistance and light resistance. Even when used outdoors, the printed material can last for more than a year without obvious fading signs.
The disadvantage is that the glossiness is not as good as dye ink,
Most pigment inks will leave residual color materials on the surface, so even printing on flat surfaces such as glossy paper cannot produce glossy images. This is why things printed with pigment ink generally lack luster. In addition, the manufacturing cost of pigment ink is relatively high, so its selling price is also more expensive than dye ink, with a price difference of more than two to four times
Color:
Magenta M
Yellow Y
Black K
Blue C