DISPERBYK-193

Solvent-free wetting and dispersing additive for aqueous printing inks. Particularly suitable for pigment concentrates containing acrylic resins. The additive deflocculates pigments by means of steric stabilisation. As a result of the small particle size of the deflocculated pigments, high levels of gloss can be achieved and the colour strength, transparency, and storage stability are improved. The millbase viscosity is greatly reduced even with a low dosage of DISPERBYK-193. This makes it possible to produce highly filled pigment concentrates with good flow properties. DISPERBYK-193 is particularly recommended for the production of binder-containing pigment concentrates that are used in aqueous gravure, flexographic and screen printing inks. The amounts required are low and facilitate the production of cost-effective, highly filled pigment concentrates with good flow properties. The additive reduces the tendency to foam which is often observed when using grinding resins, and it improves the colourant acceptance. As a defoamer in the millbase, the combination of BYK-012 and BYK-017 (1:1) has proven to be very effective (dosage 0.6% based on the total formulation).