Inkjet printing ink and method for producing printed matter

The present invention addresses the problem of providing an inkjet printing ink which is capable of producing a printed matter having a high optical density and excellent wiping resistance even when printed on plain paper, and which has excellent storage stability and resolubility. The present inventors solve the above-mentioned problem by means of an inkjet printing ink characterized by containing an aqueous medium, a dispersion (A) that contains a pigment (a) and a pigment dispersion resin and that has a volume average particle diameter of 70 nm or more but less than 90 nm, and a dispersion (B) that contains a self-dispersible pigment (b) and that has a volume average particle diameter of 70 nm or more but less than 90 nm. The volume average particle diameter of the dispersion (B) is 160 nm or more and 210 nm or less, and the mass ratio of the dispersion (A) to the dispersion (B) [dispersion (A)/dispersion (B)] is 1.5-9. 本发明要解决的课题在于，提供一种即使在普通纸上印刷的情况下也能够制造光学浓度高且耐擦拭性优异的印刷物且保存稳定性、再溶解性优异的喷墨印刷油墨。本发明人等通过喷墨印刷油墨解决了