| 摘要 |
The present invention provides an ink-jet recording ink which includes colored fine particles including an oil-soluble dye and an oil-soluble polymer or a photopolymerizable monomer, and a compound represented by formula (I): wherein R represents a hydrophobic group or a group derived from a hydrophobic polymer; X represents a divalent linking group; Y represents a group including at least one represented by the structural units A, C and D, and 0 to 40% by mole of the structural unit B; and n is an integer of 10 to 3,500; wherein R<SUP>1 </SUP>represents H or alkyl; R<SUP>2 </SUP>represents H or alkyl; R<SUP>3 </SUP>represents H or methyl; R<SUP>4 </SUP>represents H, -CH<SUB>3</SUB>, -CH<SUB>2</SUB>COOH or -CN; Z<SUP>1 </SUP>represents H, -COOH or -CONH<SUB>2</SUB>; Z<SUP>2 </SUP>represents -COOH, -SO<SUB>3</SUB>H, -OSO<SUB>3</SUB>H, -CH<SUB>2</SUB>SO<SUB>3</SUB>H, -CONHC(CH<SUB>3</SUB>)<SUB>2</SUB>CH<SUB>2</SUB>SO<SUB>3</SUB>H or -CONHCH<SUB>2</SUB>CH<SUB>2</SUB>CH<SUB>2</SUB>N<SUP>+</SUP>(CH<SUB>3</SUB>)<SUB>3</SUB>Cl<SUP>-</SUP>.
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