REDUCING DAMAGING EFFECTS OF DISSOLUTION WITHIN AN INK-JET PRINTHEAD
摘要
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.
申请公布号
WO2009035944(A3)
申请公布日期
2009.05.07
申请号
WO2008US75603
申请日期
2008.09.08
申请人
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.;YUE, SHUNQIONG;KELLY-ROWLEY, ANNE;GUO, DENNIS, Z.