| abstract |
PROBLEM TO BE SOLVED: To provide an ink composition for inkjet printing, which is used on a cloth, has excellent mechanical stability and ejection stability, has excellent image density and washing fastness, and can suppress fluffing and deterioration of texture. SOLUTION: The pigment dispersant contains a pigment, a pigment dispersant, an anionic polyurethane resin, a water-soluble organic solvent, and water, and the pigment dispersant is an acrylic resin neutralized with a basic compound, and the basic compound is a condition (A). ) Or (B), and contains calcium salts and one or more resin components selected from the group consisting of acrylic resins, methacrylic resins, styrene resins and styrene-acrylic resins. (A) Does not contain alkanolamine. (B) The value obtained by multiplying the number of moles of the alkanolamine by the number of amino groups in the alkanolamine is x, and the number of moles of the acid monomer constituting the pigment dispersant is multiplied by the number of moles of the acid monomer in the acid monomer. Assuming that the value obtained by multiplying the number of acid groups is y, the ratio x / y exceeds 0 and is 0.5 or less. [Selection diagram] None |