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US 2011/0086303 A1Published application
Toner compositions and processes
AssigneeXerox Corporation
InventorsKe Zhou, Edward Graham Zwartz, Karen Ann Moffat, 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 an IR absorber. The use of an IR absorber may permit formation of color toners that have uniform gloss and crease properties, i.e., the IR absorbers may prevent gloss and crease differences between color and black toners.
Claims20
A toner comprising:
- at least one amorphous resin;
- at least one infrared absorber;
- at least one crystalline resin;
- an optional colorant;
- and
- an optional wax,
- wherein the at least one infrared absorber has a maximum absorption of light at wavelengths of from about 700 nm to about 850 nm.
4 more elements
A toner comprising:
- at least one amorphous polyester resin;
- at least one infrared absorber;
- at least one crystalline polyester resin;
- an optional colorant;
- and
- an optional wax,
- wherein the at least one infrared absorber has a maximum absorption of light at wavelengths of from about 700 nm to about 850 nm and does not absorb light at wavelengths of from about 380 nm to about 700 nm.
4 more elements
A printing apparatus, comprising:
- at least one heating device;
- a toner source;
- an optional contact fuser;
- a non-contact fuser comprising a source of infrared light operating at a wavelength of from about 750 nm to about 2500 nm;
- a substrate pre-heater;
- an image bearing member pre-heater;
- and
- a transfuser,
- wherein the toner comprises at least one amorphous polyester resin, at least one infrared absorber, at least one crystalline polyester resin, an optional colorant and an optional wax, and
- wherein the at least one infrared absorber has a maximum absorption of light at wavelengths of from about 700 nm to about 850 nm and does not absorb light at wavelengths of from about 380 nm to about 700 nm.
7 more elements
Dependencies are inferred from the claim text.