Inkjet recording method and inkjet printed matter

摘要

An inkjet recording method includes using ink for inkjet recording containing a hydrodispersible colorant, a surfactant, water, and an organic solvent containing a polyol, an amide compound represented by the following Formula I, and an oxetane compound represented by the following Formula II; using a recording medium having a particular transfer amount of highly deionized water as measured by an automatic scanning absorptometer; and forming an image on the recording medium with the ink, wherein the ink has a particular wettability, where γ′ represents dynamic surface tension as measured by maximum bubble pressure technique and θ represents a contact angle,;where R represents an alkyl group,;where R3 represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cyclohexyl group, and a phenyl group.

主权项

1. An inkjet recording method comprising:
discharging ink on a recording medium to form an image thereon, wherein the ink comprises: a hydrodispersible colorant having a functional group, a surfactant, water, a polyol having an equilibrium moisture of 30 percent by weight or greater at 23° C. and 80 percent RH, an amide compound represented by Formula I, and an oxetane compound represented by Formula II; wherein the recording medium has a transfer amount of highly deionized water of from 5 ml/m2 to 20 ml/m2 during a contact time of 100 msec and 5 ml/m2 to 30 ml/m2 during a contact time of 400 msec, in which the transfer amount is measured by an automatic scanning absorptometer; and wherein the ink has a wettability γ′ cos θ of from 19.0 to 24.0 150 msec after ejecting 2.5 μl of the ink onto the recording medium and γ′ is 26 mN/m or less, where γ′ represents dynamic surface tension at a surface life of 150 msec at 25° C. and 50 percent RH as measured by maximum bubble pressure technique and θ represents a contact angle of 150 msec at 25° C. and 50 percent RH after 2.5 μl of the ink is ejected onto the recording medium, where R represents an alkyl group having 4 to 6 carbon atoms, where R3 represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cyclohexyl group, and a phenyl group.