Ink, ink cartridge, and ink jet recording method
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United States of America Patent
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Sep 27, 2016
Grant Date -
Sep 24, 2015
app pub date -
Feb 19, 2015
filing date -
Mar 24, 2014
priority date (Note) -
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Abstract
An ink for ink jet including a coloring material; and a water-soluble organic solvent. The coloring material contains a compound represented by the following general formula (I). The water-soluble organic solvent contains a compound represented by the following general formula (II) and a linear both-terminal alkanediol having 4 to 6 carbon atoms. The content A (mass %) of the compound represented by the following general formula (II) based on the total mass of the ink is 4.0-12.0 mass %, and the mass ratio (A/B) of the content A (mass %) to the content B (mass %) of the alkanediol based on the total mass of the ink is 2.5-4.0 times:
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