Abstract: Compositions, systems, and methods of printing an ink-jet image are provided. The composition can include a liquid vehicle including water, a liquid vehicle having from 5 wt % to 35 wt % of total organic solvent content; from 1 wt % to 6 wt % of acid-functionalized pigment solids; and from 0.001 wt % to 6 wt % of styrene-maleic anhydride copolymer, said styrene-maleic anhydride copolymer having a weight average molecular weight from about 400 Mw to 15,000 Mw.

Abstract: The present invention is drawn toward a black ink-jet ink, comprising a liquid vehicle and a black colorant solubilized or dispersed in the liquid vehicle. The liquid vehicle can include water, a cosolvent, a solubilized naturally occurring amino acid, and an amphoteric surfactant. Other components can optionally be present as well.

Abstract: An ink includes a jettable vehicle, a plurality of pigment solids dispersed in the jettable vehicle, and a styrene-maleimide copolymer dispersed in the jettable vehicle. Additionally, a method of rapidly printing an ink-jet image including ink-jetting an ink-jet ink onto a media substrate at a firing frequency from 12 kHz to 25 kHz, wherein the ink-jet ink includes a jettable vehicle, a plurality of non-acid-functionalized pigment solids dispersed in the jettable vehicle, and a styerene-maleimide copolymer dispersed in the jettable vehicle.

Abstract: Disclosed is an ink composition that includes a colorant; a water-soluble organic solvent; and a penetrant, where the penetrant may be a hydroxylated pentane. Also disclosed is an ink composition that includes a penetrant that enables the ink composition to maintain a drop weight of at least about 4.5 ng at high operating frequencies of an ink drop generator of the ink-jet printer.

Abstract: Self-dispersed pigment ink formulations, ink-jet ink sets, printer systems, and methods of printing, are disclosed. One exemplary self-dispersed pigment ink formulation, among others, includes a self-dispersed pigment, a surface-active compound, a solvent, and an aqueous solution. The surface-active compound includes hydrophobic moieties and hydrophilic moieties, where the hydrophobic moieties are from about 25 to 75% and the hydrophilic moieties are from about 25 to 75%.

Abstract: The present invention is drawn to ink sets ink-jet imaging, including ink sets having six ink-jet inks. In one embodiment, the ink set can comprise a black ink including a first organic solvent system, a cyan ink including a second organic solvent system, a magenta ink including a third organic solvent system, and a yellow ink including a fourth organic solvent system. In this embodiment, at least two of the organic solvent systems are different. The first organic solvent system can include a first organic solvent and a second organic solvent. The second and third organic solvent systems can include the first organic solvent and a third organic solvent. The fourth organic solvent system can include the second organic solvent and a fourth organic solvent. These solvent systems, and others, can also be used to prepare various dye sets that are dye specific.

Abstract: The present invention is drawn to ink sets ink-jet imaging, including ink sets having six ink-jet inks. In one embodiment, the ink set can comprise a black ink including a first organic solvent system, a cyan ink including a second organic solvent system, a magenta ink including a third organic solvent system, and a yellow ink including a fourth organic solvent system. In this embodiment, at least two of the organic solvent systems are different. The first organic solvent system can include a first organic solvent and a second organic solvent. The second and third organic solvent systems can include the first organic solvent and a third organic solvent. The fourth organic solvent system can include the second organic solvent and a fourth organic solvent. These solvent systems, and others, can also be used to prepare various dye sets that are dye specific.

Abstract: Disclosed is an ink composition that includes a colorant; a water-soluble organic solvent; and a penetrant, where the penetrant may be a hydroxylated pentane. Also disclosed is an ink composition that includes a penetrant that enables the ink composition to maintain a drop weight of at least about 4.5 ng at high operating frequencies of an ink drop generator of the ink-jet printer.

Abstract: The present invention is drawn to systems, methods, and ink-jet ink compositions that include an aqueous liquid vehicle including at least three co-solvents selected from the group consisting of tetraethylene glycol, glycerol, diglycerol, 1,5-pentanediol, 2-pyrrolidone, ethylhydroxy-propanediol. In particular, the composition includes the at least three co-solvents being present in combination in the ink-jet ink at from 10 wt % to 25 wt %, and further includes a dye.

Abstract: An ink includes a jettable vehicle, a plurality of pigment solids dispersed in the jettable vehicle, and a styrene-maleimide copolymer dispersed in the jettable vehicle. Additionally, a method of rapidly printing an ink-jet image including ink-jetting an ink-jet ink onto a media substrate at a firing frequency from 12 kHz to 25 kHz, wherein the ink-jet ink includes a jettable vehicle, a plurality of non-acid-functionalized pigment solids dispersed in the jettable vehicle, and a styerene-maleimide copolymer dispersed in the jettable vehicle.

Abstract: Printer systems, self-dispersed black pigment ink formulations, and methods of printing, are disclosed. One exemplary printer system, among others, includes a dispensing system including a printhead. The printhead includes a self-dispersed black pigment in a first compartment fluidically communicating with an orifice plate and a first nozzle. In addition, the printhead includes a color ink in a second compartment fluidically communicating with the orifice plate and a second nozzle. The first nozzle and the second nozzle are adjacent one another on the same orifice plate.

Abstract: A fluid interconnect for a component of a printer is disclosed. The component may, for example, be an inkjet printhead removably attached to a printer and having an ink inlet configured to receive ink from an ink supply. The fluid interconnect has a sealing surface configured to form a seal when contacted against a opposing sealing surface on another component of a printer ink delivery system, and carries a surfactant sealant.

Abstract: Compositions, systems, and methods of printing an ink-jet image are provided. The composition can include a liquid vehicle including water, a liquid vehicle having from 5 wt % to 35 wt % of total organic solvent content; from 1 wt % to 6 wt % of acid-functionalized pigment solids; and from 0.001 wt % to 6 wt % of styrene-maleic anhydride copolymer, said styrene-maleic anhydride copolymer having a weight average molecular weight from about 400 Mw to 15,000 Mw.

Abstract: The present invention is drawn toward a black ink-jet ink, comprising a liquid vehicle and a black colorant solubilized or dispersed in the liquid vehicle. The liquid vehicle can include water, a cosolvent, a solubilized naturally occurring amino acid, and an amphoteric surfactant. Other components can optionally be present as well.

Abstract: The present invention is drawn to ink-jet ink compositions, systems, and methods for black and color printing with substantially reduced black to color bleed. Specifically, by utilizing black dyes together with at least one long chain diol in a glycol ether, black ink-jet inks can be printed in contact with color ink-jet inks with substantially reduced black to color bleed.

Abstract: A fluid interconnect for a component of a printer is disclosed. The component may, for example, be an inkjet printhead removably attached to a printer and having an ink inlet configured to receive ink from an ink supply. The fluid interconnect has a sealing surface configured to form a seal when contacted against a opposing sealing surface on another component of a printer ink delivery system, and carries a surfactant sealant.

Abstract: Ink-jet ink compositions are described comprising a mixture of succinic acid and at least one second organic acid. The ink-jet ink compositions alleviate color bleed, and lead to reliable pen performance when incorporated in a pen architecture.

Abstract: The present invention is drawn to ink-jet ink compositions, systems, and methods for black and color printing with substantially reduced black to color bleed. Specifically, by utilizing black dyes together with at least one long chain diol in a glycol ether, black ink-jet inks can be printed in contact with color ink-jet inks with substantially reduced black to color bleed.

Abstract: Color ink sets for use in printer systems are provided and formulated to provide improved plain paper and special media performance while maintaining good printing characteristics. The inks and ink sets of the present invention exhibit excellent color performance and lightfastness across a range of media, robust K/Y bleed resistance on plain paper at fast print speeds, as well as excellent printability and reliability. A specific dye set for formulating yellow, magenta, and cyan inks comprises a mixture of acid yellow 23 (AY23) and direct yellow 132 (DY132), a mixture of a cyan dye compound having the formula: —(SO3H)2.7 CuPc—(SO2NH2)0.5 —(SO2NH(C2H4OH)0.8 wherein Pc represents a phthalocyanine nucleus and acid blue 9; and a magenta dye compound having formula: wherein Q is a cation.

Abstract: Color ink sets for use in printer systems are provided and formulated to provide improved plain paper and special media performance while maintaining good printing characteristics. The inks and ink sets of the present invention exhibit excellent color performance and lightfastness across a range of media, robust K/Y bleed resistance on plain paper at fast print speeds, as well as excellent printability and reliability.