Fluorescent water base ink for ink-jet recording

Details Fluorescent water base ink for ink-jet recording Fluorescent water base ink for ink-jet recording

2006-12-12

2006-12-12

Klemanski, Helene (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031280, C106S031430, C106S031580, C106S031640, C106S031860

Reexamination Certificate

active

07147696

ABSTRACT:
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 R1represents OH or N(R3)R4, R2represents hydrogen atom or halogen atom, and each of R3and R4represents 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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