Patent ID: 7662534
Filing Date: 2010-02-16
Classification: D01D,G03G

Abstract:
1. An apparatus for producing a toner precursor comprising: a nozzle unit which comprises nozzles each comprising a nozzle hole and a flow path, and a gas nozzle unit which comprises gas nozzles and a gas flow path, the flow path tapering toward the nozzle hole at an angle of 2° to 20° relative to a direction of a nozzle axis, the gas flow path tapering toward the nozzle hole at an angle of 15° to 33° relative to the direction of the nozzle axis, the shortest distance between the center of the nozzle hole and the gas nozzle being 0.5D to 3D, where D represents a circle-converted diameter of an outlet opening of the nozzle hole, wherein a toner constituent material is extruded from the nozzle controlled at 150° C. to 320° C., and drawn by a gas flow from the gas nozzle so as to be a fibrous fluid, while controlling a flow rate, and wherein the toner constituent material comprises a raw material A comprising at least a resin and pigment, and a raw material B comprising at least one of a low melting point resin, wax and organic solvent.