ANTI-WETTING, LOW ADHESION COATINGS FOR AQUEOUS INK PRINTHEADS

Disclosed herein are methods for reducing drooling, wetting or adhesion on a front face of an ink jet printhead configured for ejecting aqueous ink. The methods including disposing an anti-wetting, low adhesion coating onto a surface of the ink jet printhead front face, wherein the anti-wetting, low...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Tallman Kyle B, Badesha Santokh S, Sambhy Varun, Herko Jonathan H, Roetker Michael S, Griffin Scott J
Format: Patent
Sprache:eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:Disclosed herein are methods for reducing drooling, wetting or adhesion on a front face of an ink jet printhead configured for ejecting aqueous ink. The methods including disposing an anti-wetting, low adhesion coating onto a surface of the ink jet printhead front face, wherein the anti-wetting, low adhesion coating is a reaction product of a reactant mixture comprising a triisocyanante and a perfluoropolyether diol compound comprising an ethyoxylated spacer; and ejecting a drop of an aqueous ink comprising a surfactant from the printhead, wherein the aqueous ink drop exhibits a contact angle of greater than about 40° and a sliding angle of less than about 30° with a surface of the coating on the ink jet printhead front face.