Abstract: 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.

Abstract: Present embodiments generally relate to a novel clear or colorless overcoat composition that may be used for overcoating, for example, ink based images and xerographic images. The overcoat composition, which may be used as a base for a clear solid ink, comprises one or more waxes. Also included in the present embodiments is methods for using and stabilizing the overcoat composition as a solid ink.

Abstract: A solid ink composition comprising an amorphous component, a crystalline material, and optionally, a colorant, which are suitable for ink jet printing, including printing on coated paper substrates. In embodiments, the solid ink formulation comprises a blend of amorphous and crystalline components which provides a solid ink with excellent rheological properties and robustness when forming images or printing on coated paper substrates.

Abstract: A phase change ink formulation comprising an ink base, carbon black pigment and a poly(hydroxystearic acid) derived dispersant.

Abstract: Disclosed is a process which comprises: (a) printing a first fast-solidifying image onto a porous print medium with a fast-solidifying phase change ink; and (b) thereafter printing a second slow-solidifying image onto the print medium with a slow-solidifying phase change ink, said slow-solidifying image being printed onto the fast-solidifying image on the print medium.

Abstract: Disclosed are colorants comprising a colored laked complex of (a) a chromogen molecule having at least one (i) carboxylic acid group, (ii) carboxylate group, (iii) sulfonic acid group, (iv) sulfonate group, or (v) combination thereof, and (b) a polymer, said chromogen molecule and said polymer each being complexed to (c) a metal. Also disclosed are phase change inks containing the colorants.

Abstract: An imaging device includes a media supply and handling system configured to move media along a path. A printing system is disposed along the path that includes at least one printhead for applying melted phase-change ink of at least one color to the media to form images thereon. A fixing assembly is disposed along the path downstream of the printing system that is configured to apply heat and/or pressure to the melted phase change ink of the images on the media. A coating system is disposed along the path downstream from the spreader. The coating system includes at least one printhead for applying a clear ink on top of the images formed on the media by the printing station.

Abstract: Disclosed are colorants comprising a colored laked complex of (a) a chromogen molecule having at least one (i) carboxylic acid group, (ii) carboxylate group, (iii) sulfonic acid group, (iv) sulfonate group, or (v) combination thereof, and (b) a polymer, said chromogen molecule and said polymer each being complexed to (c) a metal. Also disclosed are phase change inks containing the colorants.

Abstract: A solid ink composition comprising an amorphous component, a crystalline material, and optionally, a colorant, which are suitable for ink jet printing, including printing on coated paper substrates. In embodiments, the solid ink formulation comprises a blend of amorphous and crystalline components which provides a solid ink with excellent rheological properties and robustness when forming images or printing on coated paper substrates.

Abstract: Present embodiments generally relate to a novel clear or colorless overcoat composition that may be used for overcoating, for example, ink based images and xerographic images. The overcoat composition, which may be used as a base for a clear solid ink, comprises one or more waxes. Also included in the present embodiments is methods for using and stabilizing the overcoat composition as a solid ink.

Abstract: An imaging device includes a media supply and handling system configured to move media along a path. A printing system is disposed along the path that includes at least one printhead for applying melted phase-change ink of at least one color to the media to form images thereon. A fixing assembly is disposed along the path downstream of the printing system that is configured to apply heat and/or pressure to the melted phase change ink of the images on the media. A coating system is disposed along the path downstream from the spreader. The coating system includes at least one printhead for applying a clear ink on top of the images formed on the media by the printing station.

Abstract: A method of operating a printer turns off a support structure heater when the printer enters standby mode. The print head is then moved away from an intermediate transfer surface supported by a support structure. Heat settings used to heat a print head are then varied to heat the print head and the support structure. Another method of operating a printer turns off a support structure heater when the printer enters standby mode and holds a print head adjacent to an intermediate transfer surface while the printer is in standby mode.

Abstract: Disclosed is a phase change ink composition including an ink carrier and a colorant, said ink being suitable for use in an indirect printing process wherein the ink is jetted from a printhead onto a heated intermediate transfer member and subsequently transferred from the intermediate transfer member to a final recording substrate, wherein: (a) the ink exhibits the characteristic of being jetted from the printhead onto the intermediate transfer member when the ink at a temperature of about 125° C. or lower; (b) the ink exhibits the characteristic of being jetted without purging from a printer maintained at a standby temperature of about 100° C. or lower; and (c) the ink has a cohesive failure temperature of at least about 56° C.

Abstract: A method of operating a printer turns off a support structure heater when the printer enters standby mode. The print head is then moved away from an intermediate transfer surface supported by a support structure. Heat settings used to heat a print head are then varied to heat the print head and the support structure. Another method of operating a printer turns off a support structure heater when the printer enters standby mode and holds a print head adjacent to an intermediate transfer surface while the printer is in standby mode.

Abstract: A method of operating a printer turns off a support structure heater when the printer enters standby mode. The print head is then moved away from an intermediate transfer surface supported by a support structure. Heat settings used to heat a print head are then varied to heat the print head and the support structure. Another method of operating a printer turns off a support structure heater when the printer enters standby mode and holds a print head adjacent to an intermediate transfer surface while the printer is in standby mode.

Abstract: Disclosed is a phase change ink comprising a colorant, an initiator, and a phase change ink carrier, said carrier comprising (A) a urethane which is the reaction product of a mixture comprising (1) an isocyanate; and (2) an alcohol selected from the group consisting of 1,4 butanediol vinyl ether, 2-allyloxy ethanol, 1,4-cyclohexanedimethanol vinyl ether, ethylene glycol vinyl ether, di(ethylene glycol) vinyl ether, and mixtures thereof; (B) a compound which is the reaction product of a mixture comprising (1) an isocyanate; and (2) a component comprising (a) an amine having at least one ethylenic unsaturation; (b) an acid having at least one ethylenic unsaturation; (c) a mixture of an amine having at least one ethylenic unsaturation and an alcohol having at least one ethylenic unsaturation; (d) a mixture of an acid having at least one ethylenic unsaturation and an alcohol having at least one ethylenic unsaturation; or (e) mixtures thereof; or (C) a mixture of (A) and (B); said ink being curable upon exposure t

Abstract: Compounds of the formula wherein, provided that at least one of R1, R2, and R3 is not hydrogen, R1, R2, and R3 each, independently of the other, is hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, and wherein R1 and R2 can also be alkoxy, aryloxy, arylalkyloxy, alkylaryloxy, polyalkyleneoxy, polyaryleneoxy, polyarylalkyleneoxy, polyalkylaryleneoxy, silyl, siloxane, polysilylene, polysiloxane, or wherein X is a direct bond, oxygen, sulfur, —NR40— wherein R40 is hydrogen, alkyl, aryl, arylalkyl, or alkylaryl, or —CR50R60— wherein R50 and R60 each, independently of the other, is hydrogen, alkyl, aryl, arylalkyl, or alkylaryl.

Abstract: Disclosed is a phase change ink composition comprising (a) a phase change ink carrier comprising (1) an amide; and (2) a polyethylene wax having an average peak molecular weight of from about 350 to about 730 and a polydispersity of from about 1.0001 to about 1.5; and (b) a colorant compound of the formula or mixtures thereof, wherein R1, R2, R3, M, A, E, G, J, m, n, and p are as defined herein.

Abstract: Disclosed is a phase change ink comprising (a) a colorant and (b) a phase change ink carrier, said carrier comprising (i) a branched triamide and (ii) a polyethylene wax having an average peak molecular weight of from about 350 to about 730, a polydispersity of from about 1.03 to about 3.0, and an asymmetrical molecular weight distribution skewed toward the high molecular weight end. Also disclosed is a process which comprises (1) incorporating into an ink jet printing apparatus a phase change ink comprising (a) a colorant and (b) a phase change ink carrier, said carrier comprising (i) a branched triamide and (ii) a polyethylene wax having an average peak molecular weight of from about 350 to about 730, a polydispersity of from about 1.03 to about 3.0, and an asymmetrical molecular weight distribution skewed toward the high molecular weight end; (2) melting the ink; and (3) causing droplets of the melted ink to be ejected in an imagewise pattern onto a substrate.

Abstract: Disclosed is a phase change ink comprising (a) a colorant and (b) a phase change ink carrier, said carrier comprising (i) a branched triamide and (ii) a polyethylene wax having an average peak molecular weight of from about 350 to about 730 and a polydispersity of from about 1.0001 to about 1.500. Also disclosed is a process which comprises (1) incorporating into an ink jet printing apparatus a phase change ink comprising (a) a colorant and (b) a phase change ink carrier, said carrier comprising (i) a branched triamide and (ii) a polyethylene wax having an average peak molecular weight of from about 350 to about 730 and a polydispersity of from about 1.0001 to about 1.500; (2) melting the ink; and (3) causing droplets of the melted ink to be ejected in an imagewise pattern onto a substrate.