AQUEOUS INK, INK CARTRIDGE AND INK JET RECORDING METHOD

Provided is an aqueous ink containing: a pigment; a compound (A) represented by following general formula (1); and a compound (B) represented by following general formula (2). The weight average molecular weight of the compound (A) is 1,500 or more to 7,500 or less. The ratio of a content A (% by ma...

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Hauptverfasser: KUSADA, MUTSUKI, KAKIKAWA, HIROSHI
Format: Patent
Sprache:eng
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Zusammenfassung:Provided is an aqueous ink containing: a pigment; a compound (A) represented by following general formula (1); and a compound (B) represented by following general formula (2). The weight average molecular weight of the compound (A) is 1,500 or more to 7,500 or less. The ratio of a content A (% by mass) of the compound (A) based on the total mass of the aqueous ink to the sum of the content A (% by mass) of the compound (A) and the content B (% by mass) of the compound (B) based on the total mass of the aqueous ink is 0.40 or less. The sum of the content A (% by mass) of the compound (A) and the content B (% by mass) of the compound (B) based on the total mass of the aqueous ink is 1.00% by mass or less.