Patent ID: 7971985

Claim:
A recording device comprising an inkjet head having a nozzle with a diameter, an ink flow path provided with a mesh filter opening and an ink set comprising a plurality of ink compositions, each of the ink compositions comprising a pigment dispersion comprising a metal pigment, an organic solvent and a resin, wherein each of the ink compositions has a different concentration of metal pigment, and wherein each of the the metal pigments contains plate-like particles, and in the case where the longitudinal diameter on a planar surface of the plate-like particle is X, the lateral diameter is Y, and the thickness is Z, the 50% average particle diameter R50 of a corresponding circle determined from the surface area in the X-Y plane of the plate-like particle is between 0.5 and 3 μm, and the condition R50/Z>5 is satisfied, and wherein the recording device satisfies the condition of L≧5W where L μm is the nozzle diameter of the inkjet head and W μm is the size of the mesh filter opening provided in the ink flow path, and for each of the plurality of ink compositions, the number of plate-like particles where the average particle diameter R μm of a corresponding circle determined from the surface area in the X-Y plane of the plate-like particles satisfying the condition R>(L/5) is no more than 5% of the total number of plate-like particles.