Ink composition, inkjet recording method, and colored material
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United States of America Patent
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Jun 3, 2014
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app pub date -
Jun 24, 2011
filing date -
Jul 1, 2010
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Abstract
An aqueous black ink composition which enables the formation of an excellent black recorded image having extremely high ozone gas resistance and a neutral and achromatic color. The ink composition comprises: a dye which includes at least one compound represented by specific formula (1) or at least one tautomer or salt of the compound; a dye which includes at least one compound represented by specific formula (3) or at least one tautomer or salt of the compound; and a dye which includes at least one compound represented by specific formula (4) or at least one tautomer or salt of the compound.
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