| abstract |
(57) [Abstract] (with correction) [PROBLEMS] A water-based ink having excellent printing density and printing durability, good character quality, excellent drying resistance and water resistance, and excellent ejection property and landing accuracy. Provide water-based ink for inkjet recording. An aqueous dispersion of polymer fine particles containing a colorant, and formulas (I) to (IV), wherein a and d are 10 to 40, b and c are 5 to 20, e is 1 to 3, f is 5 to 20, g + h is a number satisfying 1 to 4, i is 5 to 20, R 1 and R 3 are monovalent C 2 to 6 aliphatic groups, C3 to 6 alicyclic groups or 6 to 6 carbon atoms 12 aromatic groups, R 2 is a divalent C3-6 aliphatic group, 6 alicyclic group or an aromatic group C6~12 of, R 4 is a divalent C2 -6 aliphatic groups, C3-6 alicyclic groups or C6-12 aromatic groups. A water-based ink comprising at least one polyalkylene oxide derivative represented by the following formula: R 1 O (CH 2 CH 2 O) a -H (I) H- (OCH 2 CH 2) b -O-R 2 -O- (CH 2 C H 2 O) c -H (II ) R 3 O- (CH 2 CH 2 O) d - (CH 2 CH (C H 3) O) e -H ( III) H- (OCH 2 CH 2) f - (OCH 2 CH (C H 3 )) g —OR 4 —O— (CH 2 CH (CH 3 ) O) h - (CH 2 CH 2 O) i -H (IV) |