The fineness of the pigment black refers to the original particle size, which is closely related to the blackness, dispersibility, tinting strength and wettability of the pigment black, and the following is a brief introduction:

Pigment carbon black, the smaller the original particle size, the smaller the fineness, expressed in nm, the higher its blackness, the stronger the coloring power. To meet the production needs of high-quality products.

However, since the particle diameter is too small, there are more voids between the carbon black particles, a large amount of air exists between the voids, and a longer time is required for wetting. Therefore, the fine pigment carbon having a smaller particle size It takes more time for the black to soak before it is dispersed.

The finer the particle size is, the more difficult it is to disperse and the greater the force is required to disperse. This type of carbon black requires a series of post-treatments to complete the original production to increase the active material on the surface of the pigmented carbon black particles Dispersibility. The smaller the original particle size, the smaller the fineness, expressed in nm, the higher its blackness, the stronger the coloring power. To meet the production needs of high-quality products.