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US 8,137,880 B2Granted
Colored toners
AssigneeXerox Corporation
InventorsJordan H. Wosnick, Richard P. N. Veregin, Eric Rotberg
Life of this patent
Estimating the term…
Abstract
The present disclosure provides blue toners and methods for their production. In embodiments, methods of the present disclosure include systems which may be utilized to predict the color properties of a blue toner, thereby permitting adjustment of the pigment loading and/or toner mass per unit area.
Claims17
A blue toner, comprising:
- at least one resin;
- an optional wax;
- and
- a colorant system comprising a violet pigment selected from the group consisting of Pigment Violet 23, Pigment Violet 3, and combinations thereof, in combination with a cyan pigment selected from the group consisting of Pigment Blue 61, Pigment Blue 15:3, Pigment Blue 15:4, Pigment Blue 1, Pigment Blue 15:1, Pigment Blue 15:2, and combinations thereof,
- wherein the blue toner matches the color of a blue selected from the group consisting of Pantone Blue 072 and Pantone Reflex Blue within a human perception limit (ΔE2000) of less than about 3 in the absence of other pigments.
2 more elements
A blue toner, comprising:
- at least one amorphous polyester resin in combination with at least one crystalline polyester resin;
- a wax;
- and
- a colorant system comprising a violet pigment selected from the group consisting of Pigment Violet 23, Pigment Violet 3, and combinations thereof, in combination with a cyan pigment selected from the group consisting of Pigment Blue 61, Pigment Blue 15:3, Pigment Blue 15:4, Pigment Blue 1, Pigment Blue 15:1, Pigment Blue 15:2, and combinations thereof,
- wherein the blue toner matches the color of a blue selected from the group consisting of Pantone Blue 072 and Pantone Reflex Blue within a human perception limit (ΔE2000) of less than about 3 in the absence of other pigments.
2 more elements
Dependencies are inferred from the claim text.