Process for increasing the dispersibility of carbon black

摘要

A process for increasing the solubility of carbon black in desired solvents is provided. The process comprises (a) forming a suspension of the carbon black in a non-reactive medium, such as an aromatic hydrocar­bon, (b) adding a silylating agent, such as an organo-­silane, (c) removing the reaction product of the silat­ing agent and the carbon black, and (d) forming a dis­persion of the reaction product in a solvent for use as an ink-jet printing fluid.;The increased dispersibility of the carbon black of the invention results in a more non-settling suspension of the carbon black "molecules" than otherwise obtained.