Ink-jet ink formulations containing imidazole

Details Ink-jet ink formulations containing imidazole Ink-jet ink formulations containing imidazole

2007-01-31

2009-12-15

Klemanski, Helene (Department: 1793)

Compositions: coating or plastic

Coating or plastic compositions

Marking

C106S031580, C106S031480, C106S031470

Reexamination Certificate

active

07632344

ABSTRACT:
An ink for use in combination with an ink-jet printer comprises a mixture including a colorant, a liquid vehicle comprising 1,6-hexanediol and 1,5-pentanediol in a ratio in the range of 1:4 (wt/wt) to 4:1 (wt/wt), and/or an amount of imidazole in the range of 0.1 wt % to 6 wt %, and potentially provides at least one of the following enhancements to the ink improved print quality, increased decap time, pen reliability, environmental robustness of ink in pen, environmental robustness of printed ink on media, and aid in maintaining the pH of the ink in a desired range.

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