Ink set and image forming device
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United States of America Patent
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Apr 14, 2020
Grant Date -
Sep 12, 2019
app pub date -
Mar 6, 2019
filing date -
Mar 8, 2018
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An ink set comprises black ink having a static surface tension A and yellow ink having a static surface tension B, wherein the static surface tension A is by 0.6 mN/m or more greater than the static surface tension B, wherein the ink set is used in an image forming device including an inkjet head including a nozzle plate including a first nozzle array and a second nozzle array disposed adjacent to the first nozzle array, the first nozzle array including multiple first nozzles configured to discharge the black ink and a second nozzle array including multiple second nozzles configured to discharge the yellow ink, wherein each nozzle of the multiple first nozzles and the multiple second nozzles has a cylindrical portion having a length of 25 μm or longer along an axial direction with an opening on an ink discharging side of the nozzle plate.
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