Black pigment

A black pigment is a fine-particle, insoluble solid used to produce black or dark colours in products. Black pigments are added to powders, granules, liquids or melts to achieve colour, opacity or UV protection.

The most important black pigments include carbon black, iron oxide black and certain organic pigments. Their properties are determined by particle size, degree of agglomeration, surface structure and chemical composition. Carbon black is characterised in particular by high colour intensity, a large specific surface area and electrical conductivity.

In process engineering, black pigments are used in plastics, paints, varnishes, rubber, printing inks, building materials and foodstuffs. As uniform distribution is crucial for the colour effect, material properties and product quality, high demands are placed on mixing technology, build-up granulation and dispersion.