FIELD: printing.
SUBSTANCE: invention relates to ink for jet printing. Ink includes a coloring agent, a solvent, an acid, selected from oleic-, linoleic-, hendecanoic-, dodecanoic-, tridecanoic acid and their combinations, as well as lithium cation in the form of its hydroxide or an acid salt and water. Amount of the specified acid ranges from 0.1 to 1.0 mass percents, of lithium cation - from 50 ppm to 400 ppm. Ink pH ranges from approximately 7 to approximately 11. Invention also describes a method of improving an open state of the ink for jet printing and a printing cartridge containing the specified ink.
EFFECT: proposed ink forms an anti-evaporative layer during non-use in open state at the boundary between air and ink composition in the hole of the nozzle, thus reducing evaporation of water from composition of ink; invention ensures failure-free jet printing with improved quality of printing due to an increase in efficiency of the nozzle in open state.
14 cl, 9 dwg, 4 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
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|
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| AQUEOUS INK COMPOSITION | 2015 |
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RU2686940C2 |
| METHOD OF OBTAINING FILM-BASED INK TAPE FOR PRINTING DEVICES | 1992 |
|
RU2041831C1 |
| LIQUID INK FOR INK-JET PRINTING | 1994 |
|
RU2129579C1 |
