Patent ID: 8420286
Filing Date: 2013-04-16
Classification: G03G

Abstract:
1. A toner process consisting of: forming a dispersion by mixing an amorphous resin with a crystalline resin: adding to the resulting dispersion a colorant, at east one surfactant, and a wax to form particles; aggregating the resulting particles by heating at a temperature of from about 40° C. to about 100° C.; adding a second dispersion containing an amorphous resin; adding to the resulting particles a buffer consisting of acetic acid, sodium acetate, and deionized water; coalescing the resulting particles to form toner particles by heating at a temperature of from about 55° C. to about 100° C.; and recovering the toner particles, wherein the buffer has a pH of from about 4 to about 6, and wherein less than from about 1% to about 3%of the toner particles generated have a diameter of greater than about 25 microns, and wherein the toner particles are of a volume averages diameter of from about 30 microns to about 500 microns and wherein said toner consists of a core of at least one of said amorphous resin and said crystalline resin, said colorant, said wax, and said surfactant, and a shell of said amorphous resin.