Water base ink for ink-jet recording

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

2005-09-06

2005-09-06

Brooke, Michael S. (Department: 2853)

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

C106S031130

Reexamination Certificate

active

06938999

ABSTRACT:
A water base ink for ink-jet recording comprises water, a coloring agent, a water-soluble organic solvent, and a benzotriazole-based metal-inactivating agent and alkanolamine. When the ink is used in an ink-jet recording apparatus which has the metal member containing nickel or nickel alloy in an ink supply passage, nickel is eluted from the metal member in an amount of not more than 50 ppm. The ink makes it possible to perform stable jetting operation for a long term without causing any deterioration of metal members of a discharge head due to the metallic corrosion and the elution of nickel into the ink.

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patent: 5034058 (1991-07-01), Akiyama et al.
patent: 5281262 (1994-01-01), Saito
patent: 5402159 (1995-03-01), Takahashi et al.
patent: 5992982 (1999-11-01), Suzuki
patent: A 62-101672 (1987-05-01), None
patent: A 4-341851 (1992-11-01), None

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