| abstract |
PROBLEM TO BE SOLVED: To provide a water-based ink capable of obtaining a printed matter having an excellent glossiness and image clarity and having excellent recovery from clogging of an inkjet nozzle. At least colorant particles having an anionic group on the surface thereof are derived from a cationic hydrophilic monomer having a cationic group, a hydrophobic group, and a polymerizable group and / or a cationic polymerizable surfactant. It is coated with a polymer having a repeating structural unit and an anionic polymerizable surfactant having an anionic group, a hydrophobic group and a polymerizable group and / or a repeating structural unit derived from a hydrophilic monomer having an anionic group. And a compound represented by the following formula (1) and a compound or trehalose represented by the following formula (2). [Chemical 1] (In the formula, R 1 and R 2 are alkyl groups having 1 to 10 carbon atoms, m and n are the number of repeating units, m + n is 0 to 10 on average, and 4 ≦ a + b + c + d ≦ 80.) [Selection figure] None |