Nikolina Milanovic and Brian O. Casey, Evonik Coating Additives & Specialty Resins, Evonik Corp.03.31.17
Abstract
As problems related to pigment dispersions become more frequent and requirements regarding color reproducibility become increasingly rigorous, new demands for pigment wetting agents and dispersants are required to resolve these pigment stabilization issues. Over the past 20 years, advances in polymeric dispersants have made significant improvements in the process of wetting and stabilizing pigments. As a result, many dispersant technologies that better stabilize small pigment particles and that better prevent flocculation are emerging in the marketplace. This paper explains pigment and dispersant interfaces and how harmonizing and optimizing these interactions will lead to a better pigment dispersion.
Introduction
Until the development of synthetic pigments, pigments of natural origin – materials such as clay, earth colors, and minerals – were used to color paints. Vegetable oils with high lecithin content were used to wet out natural pigments. Since then, technology has progressed immensely.
Dispersing pigments is sometimes
As problems related to pigment dispersions become more frequent and requirements regarding color reproducibility become increasingly rigorous, new demands for pigment wetting agents and dispersants are required to resolve these pigment stabilization issues. Over the past 20 years, advances in polymeric dispersants have made significant improvements in the process of wetting and stabilizing pigments. As a result, many dispersant technologies that better stabilize small pigment particles and that better prevent flocculation are emerging in the marketplace. This paper explains pigment and dispersant interfaces and how harmonizing and optimizing these interactions will lead to a better pigment dispersion.
Introduction
Until the development of synthetic pigments, pigments of natural origin – materials such as clay, earth colors, and minerals – were used to color paints. Vegetable oils with high lecithin content were used to wet out natural pigments. Since then, technology has progressed immensely.
Dispersing pigments is sometimes
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