Pigment dispersions

How Are Pigment Dispersions Delivered Into a System?

When in liquid form, dispersions are typically added to another material by either dispensing (volumetrically) or adding by weight (gravimetrically), which can be an automated or manual process. When in a dry form, dispersions are usually added by weight. However, recent advances in pigment dispersion technology allow for pre-dispersed dry pigment dispersions to be dispensed volumetrically.

Which Markets Are Pigment Dispersions Most Commonly Used in?

Manufacturers use pigment dispersions to color many types of materials, such as paint and coatings or plastics. Applications include decorative and industrial applications, thermoset composites, inks, plastics and textiles.

More: Polymer Emulsions

Are Pigment Dispersions Environmentally Friendly?

The environmental impact of dispersions vary. As a whole, the industry is shifting toward products that have a smaller impact on the environment and consumer health. However, not every product fits this description.

A dispersion’s designation as “eco-friendly” is typically tied to the presence (or lack thereof) of a class of compounds called VOCs. Volatile organic compound (VOC) is a broad term that includes compounds that are known to be harmful and ones not traditionally thought of as harmful. A dispersion is environmentally friendly if it contains low levels of VOCs.

More recent trends include the incorporation of sustainable materials, such as resins, into the pigment dispersions where those materials are produced from sustainable sources, such as plants. Also, pigments and pigment dispersions are used to reflect infrared radiation from the sun to lower surface temperatures and energy consumption.