A STUDY ON COLOUR FURNACE BLACK USED IN XEROGRAPHIC PRINTERS

A commercial toner (Code C386) used in xerographic printers was prepared by an ozone oxidation method using medium color furnace carbon black (MCF) as the main material. The formulation of raw materials, process parameters in the preparation as well as structural characteristics and performance of C386 were tested in both lab and pilot scale experiments, in which the feasibility and stability of the process, and the performance of C386 were validated. The IR, TEM, elemental analysis and Zeta potential show that C386 contains more hydroxyl (phenolic hydroxyl), carbonyl (quinonyl), carboxyl and other functional groups than MCF carbon black does, and that the microstructure and properties of C386 are the same as that of counterparts such as from Degussa and other manufacturers.