| abstract |
Toner manufacturing method of the present invention comprises the steps of preparing a polymer latex particles by adding a macromolecular monomer, a polymerizable monomer, a wax and a coloring agent having a hydrophilic group and a hydrophobic group and one or more reactive functional groups in a stirred reactor; In the stirring reactor, the shear rate or the apparent shear rate is constantly adjusted to agglomerate the polymer latex particles and prepare a toner. The stirring reactor includes a stirring blade and a baffle, wherein the stirring blade is a paddle type, a paudler type or a flat type, and the baffles are installed in the reactor 1 to 4 It features. In the step of agglomerating the polymer latex particles, at least 90% of the shear rate distribution formed by the stirring reaction system in the stirring reactor is distributed in a section within 5 times the average shear rate, and 10 times of the average shear rate. The cumulative shear rate distribution in the high shear rate section over double is less than 3%. |