Dyes of formula (1) ##STR00001##
their production and their use are described.

Aqueous inkjet ink compositions, methods of preparing the inkjet ink compositions, inkjet ink cartridges containing the aqueous inkjet ink composition, methods of filling a print cartridge with the aqueous inkjet ink composition, and methods of printing an image on a substrate using the inkjet ink composition are disclosed.

Aqueous inkjet ink compositions, methods of preparing the inkjet ink compositions, inkjet ink cartridges containing the aqueous inkjet ink composition, methods of filling a print cartridge with the aqueous inkjet ink composition, and methods of printing an image on a substrate using the inkjet ink composition are disclosed.

There is provided an ink jet ink set for sublimation transfer, including: a first ink composition containing a first disperse dye and a first dispersant; and a second ink composition containing a second disperse dye and a second dispersant, in which the first disperse dye is the same as the second disperse dye, the content of the first disperse dye in the first ink composition is equal to or greater than the content of the second disperse dye in the second ink composition, the ratio A of the content of the first disperse dye in the first ink composition to the content of the first dispersant in the first ink composition is equal to or greater than the ratio B of the content of the second disperse dye in the second ink composition to the content of the second dispersant in the second ink composition.

There is provided an ink jet ink set for sublimation transfer, including: a first ink composition containing a first disperse dye and a first dispersant; and a second ink composition containing a second disperse dye and a second dispersant, in which the first disperse dye is the same as the second disperse dye, the content of the first disperse dye in the first ink composition is equal to or greater than the content of the second disperse dye in the second ink composition, the ratio A of the content of the first disperse dye in the first ink composition to the content of the first dispersant in the first ink composition is equal to or greater than the ratio B of the content of the second disperse dye in the second ink composition to the content of the second dispersant in the second ink composition.

A thermal ink jet ink composition includes one or more volatile organic solvents, wherein the one or more volatile organic solvents are selected from C.sub.1-C.sub.4 alcohols, C.sub.3-C.sub.6 ketones, C.sub.3-C.sub.6 esters, C.sub.4-C.sub.8 ethers, and mixtures thereof; one or more binder resins; and one or more dyes. The ink composition is suitable for use in a thermal ink jet printer and the ink composition has a slow rate of kogation such that it is capable of being printed at least 10 million drops per nozzle from the thermal ink jet printer before drop weight of the ink composition is reduced by more than 10%.

A thermal ink jet ink composition includes one or more volatile organic solvents, wherein the one or more volatile organic solvents are selected from C.sub.1-C.sub.4 alcohols, C.sub.3-C.sub.6 ketones, C.sub.3-C.sub.6 esters, C.sub.4-C.sub.8 ethers, and mixtures thereof; one or more binder resins; and one or more dyes. The ink composition is suitable for use in a thermal ink jet printer and the ink composition has a slow rate of kogation such that it is capable of being printed at least 10 million drops per nozzle from the thermal ink jet printer before drop weight of the ink composition is reduced by more than 10%.

The present disclosure is drawn to coalescent inks and material sets for 3D printing. The coalescent ink can include an organic-soluble near-infrared dye having a peak absorption wavelength from 800 nm to 1400 nm. The coalescent ink can also in water and an organic co-solvent.

Phase change ink compositions having a phase change carrier composition containing a wax and a wax-soluble near-infrared (NIR) dye having an absorption maximum in the wavelength region from about 700 nm to about 1400 nm. Near-infrared prints prepared with such phase change ink compositions. Methods of producing a layer of such a phase change ink on the surface of a substrate.

Phase change ink compositions having a phase change carrier composition containing a wax and a wax-soluble near-infrared (NIR) dye having an absorption maximum in the wavelength region from about 700 nm to about 1400 nm. Near-infrared prints prepared with such phase change ink compositions. Methods of producing a layer of such a phase change ink on the surface of a substrate.