Pigment carbon black

Black cat color black Black is used as a carbon black for coloring pigments in inks, paints, coatings, plastics and other products. According to the color strength (or blackness) and particle size, it is generally classified into four types: high color carbon black, medium color carbon black, common color carbon black, and low color carbon black. It is mainly produced by oil furnace method and tank method.

use

The pigment carbon black generally can color the plastic well, and the pigment carbon black can be selected according to the coloring property or the physicochemical property, and the selection of the coloring carbon black is basically determined by the blackness which must be achieved by the finished product. Very fine coloring carbon black can be used to achieve particularly high coloration of blackness; PE garbage bags, plastic bags, cable materials and other products only need moderate level blackness, and can use carbon black varieties with lower specific surface area and higher structure. When plastic coloring, the slight error of carbon black weighing and compounding will lead to obvious chromatic aberration. Therefore, it is better to use low-color carbon black with larger particle size and poor coloring power, so that the amount of carbon black can be slightly Large, weighing error is relatively small, and has the advantages of better dispersion and lower price. For gray plastics, fine-grained pigment blacks tend to exhibit a brownish-grey gray, while coarse-grained pigmented carbon blacks produce a blue-phase gray.

characteristic

Compared with other organic pigments, carbon black has better performance in addition to dispersion. The scientific amount of carbon black can provide better antistatic or electrical conductivity. Carbon black is basically non-toxic, but it is easy to fly and pollute. Therefore, it is often used in the form of masterbatch for the plastics industry. It also improves the dispersion of carbon black in plastics while eliminating pollution. Carbon black is used as a pigment for plastics, and the usual dosage forms are powdery and granular. Granular carbon black is less flying, but it is difficult to disperse, so powdered carbon black is used in plastic coloring.