Aqueous ink for inkjet, inkjet recording method, inkjet recorded matter, and inkjet recording device
An aqueous ink for inkjet includes water, at least one hydrosoluble organic solvent each having a boiling point of 250° C. or lower; vinyl polymer particles containing a pigment, and polycarbonate-based urethane resin particles, wherein the aqueous ink for inkjet is used for an inkjet recording system including a heating step.
1. An inkjet recording method comprising:
printing an image on a recording medium by thermal or mechanical energy action on an aqueous ink for inkjet, to obtain recorded matter; and
heating the recorded matter formed by the aqueous ink, at a temperature from 40° C. to 120° C.,
wherein the aqueous ink comprises:
water;
at least one hydrosoluble organic solvent each having a boiling point of 250° C. or lower;
vinyl polymer particles comprising a pigment; and
polycarbonate-based urethane resin particles.
2. The inkjet recording method according to claim 1 , further comprising coating an entire surface of the recording medium with the aqueous ink for inkjet comprising a white pigment; and applying the aqueous ink for inkjet comprising a non-white pigment to the recording medium.
3. The inkjet recording method according to claim 1 , wherein the recording medium is formed of a non-porous material.
4. The inkjet recording method according to claim 1 , wherein the ink includes an ultraviolet absorber.
5. The inkjet recording method according to claim 1 , wherein the hydrosoluble organic solvent includes at least one of 1,2-propane diol, 1,3-propane diol, 1,2-butane diol, 1,3-butane diol, and 2,3-butane diol.
6. The inkjet recording method according to claim 1 , wherein an average particle diameter of the polycarbonate-based urethane resin particles is 10 to 350 nm.
7. The inkjet recording method according to claim 1 , wherein the polycarbonate-based urethane resin particles includes an anionic group within an acid value range of from 20-100 mgKOH/g.
8. The inkjet recording method according to claim 1 , wherein the polycarbonate-based urethane resin particles account for 0.5 to 10 percent by mass of the ink.
9. The inkjet recording method according to claim 4 , wherein the ultraviolet absorber includes a triadine-based ultraviolet absorber.
10. The inkjet recording method according to claim 4 , wherein a content of the ultraviolet absorber in the ink is 0.5 to 20% by weight.