A system and method for the continuous fabrication of bichromal spheres by
introducing continuous streams of differently colored, pigmented polymer
melts to substantially opposite sides of a plurality of spinning disks.
The system comprises a first and second extruder which melts a raw
polymer material and mixes the melted polymer with a pigment and
optionally a charge control agent. The first and second extruders are
connected to substantially opposite sides of a plurality of spinning
disks with optionally interconnected gear pumps and mixing devices. The
instant system and method is useful in fabricating large quantities of
bichromal spheres in a continuous manner with a higher degree of
uniformity in their physical characteristics.