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Pigments are colourants and are used in papermaking both as a filler and as a coating pigment.
The most important reason for adding filler to paper – in addition to the massive cost savings – is the improvement of the whiteness, brightness and covering capacity.
Coating pigments usually consist of the same minerals as the fillers, differing from these essentially by the grain fineness.
The most common fillers and pigment minerals are ground calcium carbonate (GCC), kaolin, talc and titanium dioxide.
GAW technologies is a world-renowned specialist when it comes to total solutions for the storage, processing and dosing of these powder products, which must be handled with the utmost care.