An ink set includes: a first ink containing a first anion which is at least one selected from the group consisting of a nitrate ion, an acetate ion, an acrylic acid ion, a formic acid ion, and a methacrylic acid ion; and a second ink containing a second anion which is at least one selected from the group consisting of a sulfate ion, a phosphate ion, and an oxalate ion, wherein the first ink satisfies the following condition (A) and condition (B) and the second ink satisfies the following condition (C) and condition (D):X1≥50 Condition (A):X1/(X1+X2)0.6 Condition (B):X1: concentration of the first anion in the first ink (ppm)X2: concentration of the second anion in the first ink (ppm)Y2≥40 Condition (C):Y1/(Y1+Y2)0.6 Condition (D):Y1: concentration of the first anion in the second ink (ppm)Y2: concentration of the second anion in the second ink (ppm).展开▼
机译：墨水组包括：第一墨水，其包含选自由硝酸根离子，醋酸根离子，丙烯酸离子，甲酸离子和甲基丙烯酸离子组成的组中的至少一种的第一阴离子。包含选自硫酸根离子，磷酸根离子和草酸根离子中的至少一种的第二阴离子的第二油墨，其中第一油墨满足以下条件（A）和条件（B），且第二墨水满足以下条件（C）和条件（D）：<？in-line-formulae description =“ In-line Formulae” end =“ lead”？> X 1≥50A条件（A）：<？in-line-formulae description =“ In- line Formulae“ end =” tail“？> <？in-line-formulae description =” In-line Formulae“ end =” lead“？> X 1 /（ X 1+ X 2）> 0.6条件（B）：<？in-line-formulae description =“ In-line Formulae” end =“ tail”？> X1：第一种墨水中第一阴离子的浓度（ppm） X2：第一种墨水中第二种阴离子的浓度（ppm）<？in-line-formulae description =“在线表达式” end =“ lead”？> Y 2≥40条件（C）：<？in-line-formulae description =“ In- line Formulae“ end =” tail“？> <？in-line-formulae description =” In-line Formulae“ end =” lead“？> Y 1 /（ Y 1+ Y 2）<0.6条件（D）：<？in-line-formulae description =“ In-line Formulae” end =“ tail”？> Y1：第二种墨水中第一阴离子的浓度（ppm） Y2：第二种墨水中的阴离子第二种墨水中的负离子（ppm）。
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