| 摘要 |
A process for preparing a dispersion polymerized color toner for developing latent electrostatic images includes polymerization of a macromer in a liquid organic medium in which the macromer or the resulting polymer resin is not soluble. The liquid organic medium comprises a polymeric dispersion stabilizer. A macromer mixture comprising macromer, a colorant and a charge control agent may be polymerized in the dispersed state to produce the toner. Alternatively, the macromer is polymerized in the dispersed state to produce a particulate polymer resin. The particulate polymer resin formed is a functionalized resin having sites suitable for interacting with functionalized dyes that have complementary functionality. The functionalized dye is then applied to the resin particles typically with a dyeing aid, or surfactant. Toners produced by the inventive processes are substantially free of contamination by the liquid organic medium used during dispersion polymerization and/or dispersion dyeing.
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