Method of manufacturing toner

Details Method of manufacturing toner Method of manufacturing toner

2011-01-11

2011-01-11

Francis, Faye (Department: 3725)

Solid material comminution or disintegration

Processes

By utilizing kinetic energy of projected or suspended material

C241S040000

Reexamination Certificate

active

07866581

ABSTRACT:
A process for preparing a toner including the step of pulverizing a resin composition with a jet type pulverizer comprising a venturi nozzle and an impact member arranged so as to face the venturi nozzle, wherein r2/r1is 0.3 or less, wherein r1is a radius of the largest circle R1among the circles formed with 3 points including any given 2 points located on the outer circumference of the impact side of the above impact member, and one point located on a line connecting the 2 points in the shortest distance on the impact side; and r2is a radius of the largest circle R2among the circles formed with 3 points including 2 points located on an outer circumference of the impact side, intersecting with a line perpendicularly at a given point with the line connecting the 3 points forming the circle R1, and one point located on a line connecting the 2 points in the shortest distance on the impact side; and a pulverization member and a jet type pulverizer, each being used in the process.

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