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US 10,372,052 B2Granted
Curable toner compositions and processes
AssigneeXerox Corporation
InventorsEdward G. Zwartz, Guerino G. Sacripante
Life of this patent
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Abstract
An emulsion aggregation toner composition includes toner particles including: an unsaturated polymeric resin, such as amorphous resins, crystalline resins, and combinations thereof; an optional colorant; an optional wax; an optional coagulant; and a photoinitiator. By optimizing the particle size of the emulsion, the aggregant concentration utilized in the emulsion aggregation process, and the solids content of the emulsion, toners may be produced capable of generating images with non-contact fusing that have high gloss.
Claims17
A process comprising:
- forming an emulsion comprising at least one polymeric resin comprising particles of a size of from about 80 nanometers to about 120 nanometers;
- contacting the emulsion with an optional colorant and an optional wax;
- aggregating the particles by contacting the particles with from about 0.01 to about 0.35 parts per hundred of an aggregating agent to form aggregated particles;
- contacting the aggregated particles with at least one unsaturated polymeric resin in combination with a photoinitiator to form a shell over the aggregated particles;
- coalescing the aggregated particles to form toner particles of a size of from about 3 microns to about 4 microns;
- and
- recovering the toner particles.
4 more elements
A process comprising:
- forming an emulsion comprising at least one polymeric resin comprising particles of a size of from about 80 nanometers to about 120 nanometers;
- contacting the emulsion with an optional colorant and an optional wax;
- aggregating the particles by contacting the particles with from about 0.01 to about 0.35 parts per hundred of an aggregating agent to form aggregated particles;
- contacting the aggregated particles with at least one unsaturated polymeric resin in combination with a photoinitiator to form a shell over the aggregated particles;
- coalescing the aggregated particles to form toner particles of a size of from about 3 microns to about 4 microns;
- recovering the toner particles;
- applying the toner particles to a substrate;
- and
- fusing the toner particles to the substrate by non-contact fusing to form an image on the substrate,
- wherein the toner possesses a gloss of from about 20 ggu to about 100 ggu.
7 more elements
Dependencies are inferred from the claim text.