Pigments are designed and produced to be insoluble particles used to impart color in a variety of materials. They can be classified as organic, inorganic, effect, and functional.
The diverse range of pigment chemistries, the end use requirements, and the broad range of colors available can create a challenging situation for chemists in selecting the optimal pigment or additive for a given application. The proper pigment or additive selection is critical in determining the performance of the finished coating as well as the production efficiency.
Understanding the different pigment types, properties and chemical families will help the formulator select the most effective pigment chemistry and manufacturing processing thus avoiding potential problems with the final coating and application.
This paper will focus on pigment families and their application in waterborne, solvent borne and universal dispersions. The theory behind processing, selection of wetting and dispersing agents, and the differences between co-grinding and single pigment dispersion will also be discussed.
Jadel Baptista, holds a Bachelor degree in Chemistry at PUCCAMP-Brazil, is currently the Technical Director at LANSCO Colors.
Jadel has 25 years of experience in the coatings industry, specifically in Research & Development of polymers, paints and colorants.