Patent ID: 8801168
Filing Date: 2014-08-12
Classification: B41J,C09D

Abstract:
1. An ink composition comprising a metal pigment, wherein the metal pigment contains plate-like particles, and in the case where the longitudinal diameter on the 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 3 μm or less, and the condition R50/Z>5 is satisfied; and wherein when applied to an inkjet recording device having L μm is the nozzle diameter of an inkjet head, the number of plate-like particles where a particle diameter R μm of a corresponding circle determined from the surface area in the X-Y plane of the plate-like particles satisfies a condition R>(L/5) being no more than 5% of a total number of the plate-like particles.