Water base ink for ink-jet recording

Details Water base ink for ink-jet recording Water base ink for ink-jet recording

2006-04-04

2006-04-04

Shah, Manish S. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C347S095000, C106S031270

Reexamination Certificate

active

07021752

ABSTRACT:
An ink for ink-jet recording includes water, a basic dye, and a specified pH-adjusting agent. Those usable as the pH-adjusting agent include, for example, monoethanolamine, diethanolamine, ammonium hydrogencarbonate, and sodium carbonate. An image, which is excellent in chromaticness and color feature, can be formed. Further, metal portions, especially an ink tank, a head, and ink flow passages thereof are prevented from corrosion which would be otherwise caused by the ink.

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patent: 6530985 (2003-03-01), Matsumoto et al.
patent: 6644798 (2003-11-01), Katsuragi et al.
patent: 2002/0185038 (2002-12-01), Marritt

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