Abstract: A neutral gray or black ink and combinations thereof for ink-jet printing, comprising: an ink vehicle; carbon black; another colored pigment or pigments such as a combination of cyan and violet pigments; wherein the carbon black and colored pigments are associated with a polymer or polymers which render the carbon black and pigments dispersible in aqueous solution.

Abstract: Inkjet ink formulations and methods using the same, with improved performance, wherein the inks are formulated to work as an ink set with darker inks having a higher dynamic surface tension.

Abstract: An ink set for inkjet printing includes a cyan ink having a first hue angle h° value between approximately 200 and approximately 260, a magenta ink having a second hue angle h° value between approximately 320 and approximately 10, a yellow ink having a third hue angle h° value between approximately 80 and approximately 120, an ink selected from the group consisting of orange and red inks having a fourth hue h° value between approximately 10 and approximately 80, a green ink having a fifth hue h° value between approximately 120 and approximately 200, an ink selected from the group consisting of blue and violet inks having a sixth hue h° value between approximately 260 and approximately 320, and at least one matte black ink having an average carbon black particle size of from about 70 to about 200 nm and a first lightness L* value, and at least one photoblack ink having an average carbon black particle size of from about 20 to about 130 nm and a second lightness L* value.

Abstract: A fluid dispenser, or dispensing needle, cleaning station which provides a non-contact apparatus and method of cleaning the dispensing end of a fluid dispenser. The cleaning station includes gas dispensing devices attached to a frame. The gas dispensing devices control the application of pressurized gas to the dispensing end of a fluid dispenser such that excess material on the fluid dispenser is removed.

Abstract: A neutral gray or black ink and combinations thereof for ink-jet printing, comprising: an ink vehicle; carbon black; another colored pigment or pigments such as a combination of cyan and violet pigments; wherein the carbon black and colored pigments are associated with a polymer or polymers which render the carbon black and pigments dispersible in aqueous solution.

Abstract: An ink set for ink-jet printing includes a medium cyan ink-jet ink, a magenta ink-jet ink, and a gray ink-jet ink. Each of the medium cyan ink-jet ink, the magenta ink-jet ink, and the gray ink-jet ink are configured to have a lightness at a predetermined/given number of drops per unit area of an image-receiving medium such that the lightness of each of the inks are substantially matched.

Abstract: A neutral gray or black ink and combinations thereof for ink-jet printing, comprising: an ink vehicle; carbon black; another colored pigment or pigments such as a combination of cyan and magenta pigments; wherein the carbon black and colored pigments are associated with a polymer or polymers which render the carbon black and pigments dispersible in aqueous solution.

Abstract: A neutral gray or black ink and combinations thereof for ink-jet printing, comprising: an ink vehicle; carbon black; another colored pigment or pigments such as a combination of cyan and violet pigments; wherein the carbon black and colored pigments are associated with a polymer or polymers which render the carbon black and pigments dispersible in aqueous solution.

Abstract: A neutral gray or black ink and combinations thereof for ink-jet printing, comprising: an ink vehicle; carbon black; another colored pigment or pigments such as a combination of cyan and violet pigments; wherein the carbon black and colored pigments are associated with a polymer or polymers which render the carbon black and pigments dispersible in aqueous solution.