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US 6,475,691 B1Granted
Toner processes
AssigneeXerox Corporation
InventorsChieh-Min Cheng, Grazyna E. Kmiecik-Lawrynowicz
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Abstract
A process for the preparation of toner involving (i) aggregating a colorant dispersion containing a suitable surfactant with a latex emulsion containing an anionic surfactant, a nonionic surfactant, and a water miscible chain transfer agent, or a nonionic surfactant with chain transfer characteristics to form toner sized aggregates; (ii) coalescing or fusing said aggregates; and optionally (iii) isolating, washing, and drying the resulting toner.
Claims5
A process for the preparation of toner comprising
- (i) aggregating a colorant dispersion containing a surfactant with a latex emulsion generated by emulsion polymerization of monomers in the presence of an anionic surfactant, a nonionic surfactant, and a nonionic surfactant with chain transfer characteristics to form toner sized aggregates;
- (ii) coalescing or fusing said aggregates;
- and optionally
- (iii) isolating, washing, and drying the resulting toner.
1 more element
Dependencies are inferred from the claim text.