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    • 4. 发明授权
    • Reducing damaging effects of dissolution within an ink-jet printhead
    • 降低溶解在喷墨打印头内的破坏性影响
    • US08425028B2
    • 2013-04-23
    • US12677797
    • 2008-09-08
    • Shunqiong YueAnne Kelly-RowleyDennis Z. Guo
    • Shunqiong YueAnne Kelly-RowleyDennis Z. Guo
    • G01D11/00
    • C09D11/38
    • The present invention is drawn to systems and methods for suppressing damaging effects from dissolution of silica present in an ink-jet printhead which contains high pH, pigmented ink. The systems and methods suppress the damaging effects of dissolution of silica by the action of a basic ink by adding a metal ion to the ink composition which forms a complex with the silica. The metal ion passivates the silica thus retarding the dissolution of silica thereby reducing promotion of ink kogation, silicate ring formation, and silicate deposit on ink-jet printhead resistors which effectively improves durability and shelf life of the ink-jet printhead.
    • 本发明涉及用于抑制存在于包含高pH值着色油墨的喷墨打印头中的二氧化硅溶解的破坏性影响的系统和方法。 该系统和方法通过向与二氧化硅形成络合物的油墨组合物中加入金属离子来抑制二氧化硅溶解的碱性油墨的破坏作用。 金属离子钝化二氧化硅,从而阻止二氧化硅的溶解,从而减少喷墨打印头电阻器上的油墨结垢,硅酸盐环形成和硅酸盐沉积的促进,这有效地提高了喷墨打印头的耐久性和保质期。