INKS FOR IMPROVING PRINTHEAD LIFETIME

An inkjet ink includes an aqueous-based ink vehicle and 5 to 250 ppm of a polyvinyl alcohol. The ink is useful for improving the lifetime of inkjet printheads, especially printheads with inkjet nozzle devices having resistive heater elements susceptible to failure by corrosion.

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Bibliographische Detailangaben
Hauptverfasser:	Blake, Iain, Munton, Ellaine
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CORRECTING FLUIDS CORRECTION OF TYPOGRAPHICAL ERRORS DYES FILLING PASTES i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME INKS LINING MACHINES METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	An inkjet ink includes an aqueous-based ink vehicle and 5 to 250 ppm of a polyvinyl alcohol. The ink is useful for improving the lifetime of inkjet printheads, especially printheads with inkjet nozzle devices having resistive heater elements susceptible to failure by corrosion.