CONDENSATION RESISTANT KETONE-BASED INKJET INKS
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United States of America Patent
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Issued Date -
Mar 27, 2025
app pub date -
Jan 31, 2023
filing date -
Jan 31, 2023
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Abstract
Embodiment of the present invention relate to a continuous inkjet ink composition which uses a higher order ketone solvent or solvents (ketones having 5 or more carbon atoms) in place or more hazardous solvents such as methyl ethyl ketone and a secondary solvent with a higher derived no effect inhalation level greater than 200 mg/m3 such as ethanol. These ink compositions contain a combination of resins including a cellulose resin and a polyurethane resin or an acrylic resin, with an optional third resin. A colorant (i.e., a dye, preferably a conductive dye) also is included.
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