Patent ID: 9624402
Date: 2017-04-18
CPC Classifications: B41J,B41M,C08K,C09D

Claim:
1. A non-aqueous inkjet printing method comprising: ejecting first droplets of a non-aqueous pigment ink containing at least a pigment and a non-aqueous solvent onto a surface of a printing medium to form dots composed of the non-aqueous pigment ink, and then ejecting second droplets of a non-aqueous post-treatment liquid containing at least silica and an organic solvent toward the printing medium so that the second droplets overlap with the dots composed of the non-aqueous pigment ink, wherein either of the non-aqueous pigment ink and the post-treatment liquid contains a water-soluble resin having an amino group; wherein the non-aqueous solvent consists of a petroleum-based hydrocarbon solvent.