摘要:
Provided is magenta ink that satisfies all the necessary properties including good light-fastness, good color reproducibility, especially good color reproducibility of magenta-related secondary colors of red and blue, and high reliability, and gives satisfactory high-quality images. Also provided are a color ink set for ink-jet recording, which contains the magenta ink, and an ink-jet recording method in which is used the magenta ink or the color ink set. The magenta ink contains water, a colorant and at least two water-soluble organic solvents, and its visible-light absorbance spectrum gives a first peak A (abs.) within a range of from 500 to 570 nm and a second peak B (abs.) within a range of from 300 to 350 nm with a ratio A/B falling between 0.9 and 2.5. The magenta ink is combined with cyan ink and yellow ink to form the color ink set, which contains water, colorants and at least two water-soluble organic solvents.
摘要:
The present invention provides an ink-jet recording method and an ink-jet printer, which can diminish or control curling and cockling of the recording medium. The present invention also provides an ink-jet recording method and an ink-jet printer, which can form a recorded image of high quality, resistance to water and drying capacity, while diminishing or controlling curling and cockling. In the ink-jet recording method and ink-jet printer of the present invention, a recording image is formed on the surface of a recording medium containing at least one organic compound selected from the group consisting of 1,1,1-tris(hydroxylmethyl)propane, monosaccharides, oligosaccharides, and sugar alcohols, by applying an ink composed of at least a colorant, a water-soluble organic solvent, and water.
摘要:
An ink for ink jet recording process, comprising water, a coloring material and a water-soluble organic solvent, wherein the ink further comprises a compound having a plurality of hydroxyl groups and at least one group selected from the group consisting of alkyl, haloalkyl, alkenyl, alkinyl, cycloalkyl and aromatic groups each having from 5 to 18 carbon atoms.
摘要:
A novel ink for ink jet recording, comprising water, a coloring material, a high molecular surface active agent and a sulfur-containing alcohol; and an ink for ink jet recording method using the ink which causes neither nozzle clogging nor disturbance of jetting and can provide a high density uniform image that can be easily dried on ordinary paper.
摘要:
An ink-jet ink contains water, a coloring material and an amine compound represented by the formula: R.sub.1 R.sub.2 R.sub.3 N (I) wherein one or two of R.sub.1, R.sub.2 and R.sub.3 represent(s) (an) alkyl group(s) having 1 to 5 carbon atoms substituted by at least one group selected from the group consisting of a carboxy group, a sulfonic acid group, and a Li, Na, Na, K or ammonium salt thereof, and the remainder represents(s) (an) hydrogen atom(s) or (an) alkyl group(s) having 1 to 5 carbon atoms substituted by a hydroxide group or a carbamoyl group. The pH value of the ink is preferably between 6 to 8. Moreover, printing may be made by applying thermal energy to the ink and forming droplets.The ink and the method of printing using the ink may prevent the change of the amount of ink droplets due to kogation on a heater even with a long-term use, and may not cause a heater trouble due to the corrosion of materials constantly in contact with ink. Further, even if the ink is stored for a long-period, the pH of the ink may be kept to be stable and clogging of print head may be prevented and change of hue of images may be avoided.
摘要:
An ink for inkjet printers comprises water, a water-soluble organic solvent, and a colorant. The ink further comprises an amine having at least one substituent selected from the group consisting of a sulfonic acid group, a carboxylic acid group and a halogen atom, so that the variation in pH of the ink can be suppressed to a minimum. The pH of the ink is preferably in the range of from 5 to 9.