IR transparent inkjet ink set
AssigneeE.I. du Pont de Nemours and Company
InventorChristian Jackson
Life of this patent
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Abstract
The present invention pertains to an ink set comprising at least four different colored visible inks, for example BGMY, wherein none of the visible inks absorb significantly in the near infrared region (IR transparent).
Claims15
An inkjet ink set comprising at least four visible inks, wherein the at least four visible inks comprise a first ink blue in color, a second ink green in color, a third ink magenta in color and a fourth ink yellow in color, wherein each of the first, second, third and fourth inks individually comprises a vehicle and a soluble colorant, and wherein the visible inks of the ink set are substantially transparent in the near-infrared region, wherein the inks of the ink set contain substantially no individual colorant that in and of itself is cyan in color.
A method for ink jet printing onto a substrate, comprising the steps of:
- (a) providing an ink jet printer that is responsive to digital data signals;
- (b) loading the printer with a substrate to be printed;
- (c) loading the printer with an inkjet ink set;
- and
- (d) printing onto the substrate using the inkjet ink set in response to the digital data signals,
- wherein the inkjet ink set comprises at least four visible inks, wherein the at least four visible inks comprise a first ink blue in color, a second ink green in color, a third ink magenta in color and a fourth ink yellow in color, wherein each of the first, second, third and fourth inks individually comprises a vehicle and a soluble colorant, and wherein the visible inks of the ink set are substantially transparent in the near-infrared region, and wherein the inks of the ink set contain substantially no individual colorant that in and of itself is cyan in color.
Dependencies are inferred from the claim text.