Reactive bio-based pigment dispersant

 
Due to legislative issues and strong consumer demand, now often there is an increasing tendency towards raw materials from renewable, bio-based origin, amongst other, pigment dispersants. Part of this, is the approach for reactive systems giving (some) additional contribution to durability. Much has been published about stabilization mechanisms of pigment dispersants and many approaches are described for resin free pigment pastes for Solvent Based; Water Based and UV-curable coating and ink systems. This article shows a novel approach using the newly developed ADDISPTM ECO - a reactive, VOC-free, bio-based (biodegradable) pigment dispersant for, amongst other, resin free pigment pastes, applicable in Solvent Based; Water Based and UV-curable systems. This dispersant enables production of resin free pigment pastes with "fineness" < 5µ (Hegman gauge) using dissolver only, no ball/pearl mill required. The ADDISPTM ECO can also be used in applications wherein resins are used as a component e.g. paints and inks. Results are shown for a variety of "difficult to master" pigments including carbon black(s) with one, single pigment dispersant.