Patent ID: 6773101
Filing Date: 2004-08-10
Classification: B41M,C09D

Abstract:
An ink-jet recording system comprising:a recording medium; an ink-jet printing apparatus comprising ink containers in which a plurality of pigment inks are contained, and ink-jet heads for ejecting the respective pigment inks towards the recording medium, wherein the recording medium is provided with an ink-receiving layer having porous structure on a base material, the ink-receiving layer comprising alumina hydrate particles and resinous binder, and having a pore volume of 0.1 to 1.0 ml/g; wherein each of the pigment inks comprises pigment particles and a resin in an aqueous medium, and comprises 30 to 70% water by weight based on the total weight of the ink, and in each of the pigment inks, the diameter of the pigment particles falls within a range of from 10 to 500 nm, and the proportion of the pigment particles having a diameter of 300 to 500 nm based on the total number of pigment particles in the ink is at most 30%; and wherein the ink-receiving layer has a thickness of at least 15 &mgr;m.