Patent ID: 8163076
Filing Date: 2012-04-24
Classification: C09D,Y10T

Abstract:
1. An ink-jet recording method comprising: ejecting a droplet of an ink composition containing a metal pigment and optically transparent spherical particles with an ink-jet recording apparatus, the ink composition having an optically transparent spherical particle content; and attaching the droplet to a recording surface of a recording medium having an average surface roughness Ra of 3 μm or more, thereby recording an image, wherein the optically transparent spherical particle content and a mass ratio of the metal pigment to spherical particles are such that the recorded image has a retroreflective index Rr of 1.5% or more, wherein the retroreflective index Rr is expressed as expression (1):  wherein Yr and Ys represent the lightnesses of a retroreflective component and a regular reflection component, respectively, of reflected light when light is incident on the image at an incident angle of 45°.