Magnetic ink for jet printing

Conversion of a base magnetic fluid into an ink for ink jet printing requires special chemical modifications. These are tailored for the fluid to meet specific properties such as magnetic moment, viscosity, colloidal stability, and jet directionality, as well as low evaporation rate, and drying time on paper. This paper will describe the set of simultaneous chemical modifications that are carried out on the base fluid in order to achieve the properties of a suitable ink for a jet printer.