| 摘要 |
A fluorescent water base ink for ink-jet recording to be used for an ink-jet printer contains water, a pigment, a compound having primary or secondary amide group, and a fluorescent dye represented by the following formula (1): wherein R<SUP>1 </SUP>represents OH or N(R<SUP>3</SUP>)R<SUP>4</SUP>, R<SUP>2 </SUP>represents hydrogen atom or halogen atom, and each of R<SUP>3 </SUP>and R<SUP>4 </SUP>represents hydrogen atom or alkyl group. A sufficient OD value and a fluorescence value are obtained while securing the vivid color development and the excellent water resistance principally in accordance with the interaction of the fluorescent dye and the compound having the amide group.
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