Ink jet recording apparatus and recorded article

摘要

An ink jet recording apparatus records an image on a recording material by ejecting a first ink composition through at least one first liquid ejecting nozzle having an open end. The ink jet recording apparatus also includes a platen having a surface on which the recording medium is placed. The surface is away from the open end at a distance PG satisfying the relationship 0.5 mm

主权项

1. An ink jet recording apparatus comprising:
an ink container containing a first ink composition; an ink jet head that discharges droplets, including at least one first liquid ejecting nozzle through which the first ink composition is ejected to record an image on a recording medium, wherein the at least one first liquid ejecting nozzle has an open end, when the first ink composition is ejected, said first ink composition is split into a main droplet having a flying velocity Vm and at least one satellite droplet having a flying velocity Vs, the flying velocities satisfying the relationship Vm−Vs<2 m/s; a controller that causes the ejection of the first ink composition from the at least one first liquid ejecting nozzle; and wherein the first ink composition satisfies at least either:
(1) containing less than 3% by mass of 1,2-alkanediol; or(2) containing 10% by mass or more of glycerol;wherein the ink jet head that discharges droplets having a weight of 26 ng or less on average;wherein the at least one first liquid ejecting nozzle is a piezoelectric ejecting nozzle that ejects liquid with a pressure generated by a piezoelectric element, and wherein the at least one first liquid ejecting nozzle includes a plurality of first liquid ejecting nozzles arranged in an ink jet head at intervals of 85 μm or less;wherein the distance between the open end of the nozzle and the surface of a platen, on which the recording medium is placed, is between 0.5 mm and 2.5 mm.