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US 10,705,442 B2Granted
Toner compositions with white colorants and processes of making thereof
AssigneeXerox Corporation
InventorsKaren A. Moffat, David J. W. Lawton, Melanie L. Davis, Juan A. Morales-Tirado, Varun Sambhy
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Abstract
The present disclosure relates to toner compositions containing a high loading of white colorant of greater than 30 weight % by weight of the toner and processes thereof. The toner exhibits a lightness (L*) of at least 75.
Claims19
An emulsion aggregation toner having toner particles comprising
- one single white colorant consisting of titanium dioxide having a specific gravity of from 3.6 to 4.3, wherein the single white colorant is present in an amount of from about 35 weight percent to 60 weight percent by weight of the toner;
- a crystalline polyester resin;
- and
- an amorphous polyester resin;
- wherein the toner exhibits a lightness (L*) of from about 75 to about 95 at a pigment mass per unit area of from about 0.2 mg/cm2 to about 1.5 mg/cm2 based on the surface area of a black substrate.
2 more elements
An emulsion aggregation toner having toner particles comprising
- one single white colorant consisting of titanium dioxide having a specific gravity of from 3.6 to 4.3, wherein the single white colorant is present in an amount of from about 35 weight percent to 55 weight percent by weight of the toner;
- a crystalline polyester resin;
- an amorphous polyester resin;
- and
- an anionic surfactant;
- wherein the toner exhibits a lightness (L*) of from about 75 to about 95 at a pigment mass per unit area from about 0.2 mg/cm2 to about 1.5 mg/cm2 based on the surface area of a black substrate.
3 more elements
Dependencies are inferred from the claim text.