AQUEOUS INK COMPOSITION FOR INKJET RECORDING

PROBLEM TO BE SOLVED: To provide an aqueous ink composition used for inkjet recording method which provides a pigment-based ink superior in light fastness, water resistance and shelf life stability, does not cause generation of a clogging at the tip end of a nozzle due to drying of ink, is always go...

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Bibliographische Detailangaben
Hauptverfasser: HIGETA SHIGERU, OSADA NOBUTAKA
Format: Patent
Sprache:eng
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide an aqueous ink composition used for inkjet recording method which provides a pigment-based ink superior in light fastness, water resistance and shelf life stability, does not cause generation of a clogging at the tip end of a nozzle due to drying of ink, is always good in ejection resposiveness and ejection stability. SOLUTION: The aqueous ink composition contains at least water, a water-soluble organic solvent and a pigment, wherein a compound expressed by general formula (I) is contained provided that, in the formula, M expresses an alkali metal, ammonium or an organic ammonium, and m and n are each 1 or 2. COPYRIGHT: (C)2007,JPO&INPIT