EFKA PX 4700 is a solvent-based dispersant of the acrylic block copolymer family of products made by Controlled Free Radical Polymerization (CFRP, this technology allows to produce polymeric dispersants with defined polymer architecture and low poly-dispersity) and is especially suited for the dispersion of pigments into resin-minimal and resin-free pigment concentrates for use in solvent-based inkjet inks.

EFKA PX 4700 offers high efficiency in dispersing and stabilizing high-performance pigments providing an excellent combination of viscosity suppression and storage stability. This makes EFKA PX 4700 ideally suited for the development of inkjet inks for wide-format industrial printing applications.

Applications

EFKA PX 4700 is ideally suited for the production of resin-minimal or resin-free concentrates/bases of organic pigments. As such it is especially suitable for use in solvent-based inkjet inks.

It allows stabilizing organic pigments in very-low-viscosity/high-solvent systems. It is suitable for use with strong solvent systems (e.g., ketones, esters) and mild solvent systems (e.g., glycol ethers).

EFKA PX 4700 is suitable for use with a wide range of organic pigments, particularly (but not exclusively):

• quinacridone magentas
• benzimidazolone and nickel azo yellows
• carbon blacks