The Paper pigments are fine powders or dispersions that are added to paper pulp or coatings to improve optical and physical properties. Titanium dioxide (TiO₂) is widely used for its high brightness, opacity, and light-scattering properties. Kaolin and calcium carbonate provide smoothness, opacity, and bulk, while talc enhances printability and surface finish.

Pigments are classified based on particle size, shape, and surface treatment, affecting paper brightness, opacity, and print quality. Surface-treated pigments improve dispersibility, reduce agglomeration, and enhance compatibility with coating formulations. Advanced technologies such as nano-sized pigments are being developed for high-end printing papers and specialty applications, offering enhanced opacity and brightness with lower material usage.

The proper selection of paper pigments is critical for balancing performance, cost, and processing efficiency in paper production, ensuring high-quality end products.