To obtain an inkjet head ejecting recording liquid from fine openings in which the openings are protected against clogging and a coloring material adheres well onto a recording body thus ensuring a good pixel shape and high image quality recording.

The openings for ejecting the recording liquid has a diameter not larger than Φ25 μm and the recording liquid is produced by dispersing fine particles into the solvent of the recording liquid along with a dispersant, or by dispersing fine particles subjected to surface treatment into the solvent of the recording liquid. Assuming the size of the fine particles is Dp and the size of the fine openings is Do, a relation of 0.0005≤Dp/Do≤0.02 is satisfied. The recording body is a paper where the contact angle variation of the recording liquid disappears substantially within 100 ms after adhesion of the recording liquid. The fine particles are smaller than the thickness of fibers of the paper but not larger than a gap being formed by overlapping fibers.