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    • 5. 发明授权
    • Potassium substituted inks for ink-jet printers
    • 用于喷墨打印机的钾取代油墨
    • US5069718A
    • 1991-12-03
    • US609042
    • 1990-11-05
    • William D. Kappele
    • William D. Kappele
    • C09D11/00
    • C09D11/328
    • The properties of inks employing copper phthalocyanine dyes having associated therewith sodium cations are improved by replacing the sodium cations with potassium cations. This ion exchange is preferably performed by passing a potassium-containing base through a strong acid resin to replace the H.sup.+ ions with K.sup.+ ions. The dye is then passed through the potassium-loaded resin to effect the ion exchange. Inks made from the potassium-substituted dyes evidence reduced crusting, increased idle time without causing drop ejection failures (soft plugs) and improved kogation without suffering any loss in print quality.
    • 使用具有与钠阳离子相关联的铜酞菁染料的油墨的性质通过用钾阳离子代替钠阳离子来改进。 该离子交换优选通过使含钾碱通过强酸树脂以用K +离子代替H +离子来进行。 然后将染料通过负载钾的树脂进行离子交换。 由钾取代的染料制成的油墨证明减少了结皮,增加了空闲时间,而不会引起液滴喷射故障(软塞)和改进的搅拌,而不会损失打印质量。