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AssigneeBrother Kogyo Kabushiki Kaisha
InventorsMayuko Okada, Narumi Koga, Kazuma Goto, Hiromitsu Sago, Hideto Yamazaki, Kazuo Kobayashi, Tatsunosuke Hoshi, Michiko Aoyama, Hideo Ohira, Shunichi Higashiyama, Masaya Fujioka, Yoshito Toyoda
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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 μA/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.
A water base ink for ink-jet recording which is used for an ink-jet recording apparatus having an ink-jet head provided therein with an ink flow passage formed of nickel or nickel alloy, the water base ink for ink-jet recording comprising:
An ink-jet recording apparatus comprising:
A method for producing a water base ink for ink-jet recording which is used for an ink-jet recording apparatus having an ink-jet head provided therein with an ink flow passage formed of nickel or nickel alloy, the method comprising:
Dependencies are inferred from the claim text.