Aqueous compositions with improved silicon corrosion characteristics
AssigneeEastman Kodak Company
InventorsKevin P. Dockery, Allan F. Sowinski, Barbara B. Lussier, Mihaela L. Madaras, Kurt D. Sieber, Hwei-Ling Yau
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Abstract
A process for printing inkjet ink and other aqueous compositions through silicon-based microelectromechanical printer structures is disclosed that suppresses the normal dissolution of the silicon device components in contact with the aqueous composition. Inkjet ink and other aqueous compositions used in the process contain the soluble salts of organic aromatic azo compounds in sufficient concentrations to inhibit silicon corrosion. The useful lifetime of microelectromechanical fluidic devices based on silicon fabrication is extended.
Claims20
A process for printing an aqueous ink composition with an inkjet printer comprising a silicon-based material which contacts the ink composition, comprising loading the printer with an aqueous ink composition and ejecting the ink composition against a recording material, wherein the ink composition comprises at least a first colorant and a soluble organic aromatic azo compound in a concentration sufficient to inhibit corrosion of the silicon-based material when contacted by the ink composition.
An aqueous ink composition for use in an inkjet printer comprising a silicon-based material which contacts the aqueous ink composition, comprising at least a first colorant and a soluble organic aromatic azo compound in a concentration sufficient to inhibit corrosion of the silicon-based material when contacted by the aqueous composition, wherein the soluble organic azo compound concentration is from about 0.001 to less than 1.0 weight percent.
An aqueous composition for use in an inkjet printer comprising a silicon-based material which contacts the aqueous composition, comprising a soluble organic aromatic azo compound in a concentration sufficient to inhibit corrosion of the silicon-based material when contacted by the aqueous composition, wherein the aqueous composition comprises less than 2 weight percent of any colorants.
Dependencies are inferred from the claim text.