Lignin colloids

Abstract

The present disclosure relates to colloidal lignin particles and lignin colloid compositions comprising colloidal lignin particles. Particularly, the present disclosure relates to lignin colloid compositions comprising colloidal lignin particles, a liquid medium, and optionally a surfactant. The compositions are suitable for use as optical coatings to for example prevent visual obstruction from condensation. The lignin colloid compositions are hydrophilic aqueous dispersions that are readily applicable in coating of surfaces including moderately hydrophilic and even hydrophobic surfaces. The present disclosure also relates to methods of producing colloidal lignin particles.