Patent ID: 7829160
Filing Date: 2010-11-09
Classification: B41M

Abstract:
1. An inkjet recording element comprising, in order over an absorbent support: (a) a porous base layer comprising a polymeric binder and at least 80 percent by weight of inorganic particles, wherein at least 60% by weight of the inorganic particles comprises precipitated calcium carbonate having a particle size of 0.4 to 5 micrometers; (b) a porous ink-receiving intermediate layer comprising at least 80 percent by weight of inorganic particles of hydrated or unhydrated alumina, the median primary particle size of which is between 150 and 250 nm, wherein the concentration of fumed alumina in the intermediate layer, if present, is less than the concentration of fumed alumina in the upper layer, relevant to the inorganic particles in each layer; and (c) a porous image-receiving upper layer comprising at least 80 percent, by weight of total inorganic particles, of an admixture of fumed alumina particles and aluminum oxyhydroxide particles, wherein the latter particles have a median particle size of from about 90 to 150 nm and the former particles have a median secondary particle size of under 200 nm and primary average particle size of 7 to 40 nm; wherein, based on dry weight coverages, the base layer is present in an amount of 25 g/m and wherein the unprinted inkjet recording element exhibits a 20-degree gloss of at least 15 Gardner gloss units.