| abstract |
Inks for use in combination with an ink jet printer are colorants, 1,6-hexanediol and 1,5-pentanediol in a ratio ranging from 1: 4 (weight / weight) to 4: 1 (weight / weight). A liquid vehicle containing and / or a mixture comprising imidazole in an amount of 0.1% to 6% by weight with the following improvements to the ink: improved print quality, extended decap time, pen reliability May provide at least one of the environmental robustness of the ink in the pen, the environmental robustness of the ink printed on the media, and the assistance in maintaining the pH of the ink within the desired range. |