Ink, ink-jet recording process, recorded article, recording unit, ink cartridge, ink-jet recording apparatus fluorescence enhancing method and method of elongating life time of fluorescence

摘要

Disclosed herein is an ink comprising: (i) first and second organic compounds which are incompatible with each other; (ii) at least one of a compound exhibiting fluorescence properties and a coloring material exhibiting fluorescence properties; and (iii) a liquid medium dissolving or dispersing the components (i) and (ii) therein.