摘要:
A water base pigment ink for ink-jet recording contains a pigment, water, and at least one of polyethylene glycol and diglycerol. The ink is solidified into a solid matter when the water is evaporated. Further, the solid matter is redissolved in the unsolidified water base pigment ink for ink-jet recording. When the ink is used, then neither clog-up of a nozzle nor discharge failure is caused, no load is imposed by the solidified ink on the maintenance system such as the wiping equipment, and the sticking performance on the paper is satisfactory.
摘要:
An inventive ink comprises a water-soluble dye or a pigment as a coloring agent, 5 to 15% by weight of polyvalent alcohol monoalkyl ether selected from the group consisting of tetraethylene glycol monoalkyl ethers and pentaethylene glycol monoalkyl ethers, 5 to 50% by weight of polyvalent alcohol, and pure water. When recording is performed in accordance with the ink-jet recording system by using the inventive ink, an excellent result is obtained from any viewpoint concerning, for example, the recording characteristic, the fixation to an objective recording material, the quick drying characteristic, the printing quality characteristic, and the low odor characteristic. The inventive ink is useful as an ink to be used for ink-jet recording apparatuses based on various recording systems, making it possible to obtain an excellent recording result.
摘要:
A water-based magenta ink composition comprising an aqueous medium, a magenta dye dissolved therein and a pH adjuster, where, as the magenta dye, Color Index Number Acid Red 52 is used; as the pH adjuster, a basic organic compound is used; and the pH of the water-based magenta composition is adjusted to a value within the range of from 8 to 10.
摘要:
A water-based recording magenta ink composition comprises a magenta dye dissolved in a mixed solvent of water and a water-soluble organic solvent. The magenta dye comprises Color Index Number Acid Red 52 and the water-soluble organic solvent comprises at least one of 2-pyrrolidinone, .beta.-thiodiglycol and 1,5-pentanediol.
摘要:
A water base ink for ink-jet recording, which is usable for an ink-jet recording apparatus having an ink-jet head provided therein with an ink flow passage formed of nickel or nickel alloy, includes a coloring agent, water, and a water-soluble organic solvent. The ink is blended so that a current density, which is obtained within an electric potential range of −600 to +300 mV, is not more than 100 &mgr;A/cm2 when anodic polarization measurement is performed by using a reference electrode of silver/silver chloride, a counter electrode of platinum, and a working electrode of nickel or nickel alloy. The ink does not corrode any part for constituting the flow passage in the ink-jet head.
摘要翻译:用于喷墨记录的水性墨水,其可用于具有其中设置有由镍或镍合金形成的墨流道的喷墨头的喷墨记录装置,包括着色剂,水和水 - 可溶性有机溶剂。 将油墨混合,使得当在-600〜+ 300mV的电位范围内获得的电流密度不大于100μA/ cm 2,当通过使用银的参比电极进行阳极极化测量时 /氯化银,铂电极和镍或镍合金的工作电极。 油墨不会腐蚀用于构成喷墨头中的流路的任何部分。
摘要:
A water-based magenta ink composition comprises an aqueous medium and a magenta dye dissolved therein, which employs Color Index Number Acid Red 52 as the magenta dye and contains 5 to 15% by weight of a polyhydric alcohol alkyl ether having a vapor pressure of 0.1 mmHg or below at 20.degree. C.
摘要:
A water color ink for recording, including a yellow ink, a magenta ink and a cyan ink, wherein the yellow ink contains color index number Acid Yellow 23 at 0.7 to 3 wt %, the magenta ink contains a dye mixture of color index number Acid Red 52 and color index number Acid Red 289 at 0.7 to 3 wt %, and the cyan ink contains color index number Acid Blue 9 at 0.7 to 3 wt %, and an ink-jet recording process using the same.
摘要:
A water base ink set for ink-jet recording includes a black ink containing a negatively charged self-dispersing black pigment and a water-soluble polyvalent alcohol alkyl ether; and a yellow ink containing a water-soluble anionic yellow dye in which a number of counter ion or ions per one molecule is not more than 3, a surfactant based on amine represented by the following general formula (1), and a water-soluble polyvalent alcohol alkyl ether; R—N—(CH2CH2O)xH(CH2CH2O)yH (1) wherein R represents an alkyl group or an alkenyl group having a number of carbons of 8 to 18, and x+y is 5 to 15. Accordingly, the water ink set in which no bleeding or no coagulation of the pigment occur is provided.
摘要:
A water-based ink composition having an aqueous medium, a dye dissolved therein, and a pH adjuster. The pH adjuster may be any one of the following (1) to (4): (1) triethanolamine and triethanolamine hydrochloride; (2) triethanolamine and hydrochloric acid; (3) tris (hydroxymethyl) aminomethane and tris (hydroxymethyl) aminomethane hydrochloride; and (4) tris (hydroxymethyl) aminomethane and hydrochloric acid; and is used to adjust the pH of the water-based ink composition to a value within the range of from 8 to 10.
摘要:
An ink composition comprises a dye, water, at least one of a polyhydric alcohol and an alkyl ether of a polyhydric alcohol, and an organic weakly basic compound, and has a pH range of 8 to 10.