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    • 4. 发明授权
    • Ink-jet ink and method of printing using the same
    • 喷墨墨水和使用其的印刷方法
    • US5462590A
    • 1995-10-31
    • US184195
    • 1994-01-18
    • Toshitake YuiYoshiro YamashitaFuminori KoideAkihiko ChujoKen Hashimoto
    • Toshitake YuiYoshiro YamashitaFuminori KoideAkihiko ChujoKen Hashimoto
    • B41J2/01B41J2/05B41J2/14B41M5/00C09D11/00C09D11/02C09D11/033C09D11/328C09D11/38
    • C09D11/38
    • An ink-jet ink contains water, a coloring material and an amine compound represented by the formula: R.sub.1 R.sub.2 R.sub.3 N (I) wherein one or two of R.sub.1, R.sub.2 and R.sub.3 represent(s) (an) alkyl group(s) having 1 to 5 carbon atoms substituted by at least one group selected from the group consisting of a carboxy group, a sulfonic acid group, and a Li, Na, Na, K or ammonium salt thereof, and the remainder represents(s) (an) hydrogen atom(s) or (an) alkyl group(s) having 1 to 5 carbon atoms substituted by a hydroxide group or a carbamoyl group. The pH value of the ink is preferably between 6 to 8. Moreover, printing may be made by applying thermal energy to the ink and forming droplets.The ink and the method of printing using the ink may prevent the change of the amount of ink droplets due to kogation on a heater even with a long-term use, and may not cause a heater trouble due to the corrosion of materials constantly in contact with ink. Further, even if the ink is stored for a long-period, the pH of the ink may be kept to be stable and clogging of print head may be prevented and change of hue of images may be avoided.
    • 喷墨油墨含有水,着色材料和由下式表示的胺化合物:R1 R2 R3 N(Ⅰ)其中R1,R2和R3中的一个或两个表示(s)(an)烷基,其具有 1至5个碳原子被至少一个选自羧基,磺酸基和其中的Li,Na,Na,K或铵盐所取代的基团取代,其余代表(a) 具有1〜5个碳原子的氢原子或(a)烷基被氢氧基或氨基甲酰基取代。 油墨的pH值优选在6至8之间。此外,可以通过向油墨施加热能并形成液滴来进行印刷。 墨水和使用墨水的印刷方法可以防止即使长期使用也可能由于加热器上的焦化而导致的墨滴量的变化,并且可能不会由于材料的不断腐蚀而引起加热器故障 用墨水。 此外,即使油墨长期储存,也可以保持油墨的pH稳定,并且可以防止打印头的堵塞,并且可以避免图像的色相变化。