Surface modification of black pigments: a novel approach for advancing black pigment performance in imaging systems

摘要

Black pigments have had several breakthroughs over the last fifty years that have resulted in improved performance in imaging systems. These events include surface oxidation, tailored surfactants/polymers, and most recently Cabot Corporation's new technology involving the chemical bonding of specific functional groups to the surface of carbon balck. The new technology may be applied to a variety of imaging applications where highly stable submicron pigment systems are required, especially for ink jet uses. The unique properties of these new sulfonated and carboxylated black pigmation on particle size, print quality, waterfastness, and intercolor bleed. Also, the issue of utilizing pigments in ink jet applications will be addressed.