Abstract: An ink jet recording element with a support having thereon an image-receiving layer of inorganic particles and stabilizer particles, the stabilizer particles being free of any organic solvent and containing greater than about 80% by weight of a water-insoluble antioxidant and having a mean particle size of greater than 5 nm, the inorganic particles being greater than about 50% by weight of the ink receiving layer.

Abstract: An ink jet ink composition of water, a humectant, and a hyperbranched polymeric dye of a hyperbranched polymer having a dye chromophore pendant on the polymer chain or incorporated into the polymer backbone.

Abstract: An ink jet recording element including a support having thereon an image-receiving layer, the ink jet recording element containing a metal hydroxide salt, (M2+)(OH)a(Ap?)b.xH2O; wherein: M2+ is at least one metal ion having a 2+ oxidation state; A is an organic or inorganic anion; p is 1 or 2; and x is equal to or greater than 0; and a and b comprise rational numbers as follows: 0<a<2 and 0<b<2 so that the charge of M2+ is balanced.

Abstract: An ink jet recording element comprising a support having thereon an image-receiving layer, the ink jet recording element containing finely divided particulate material and a metal(oxy)hydroxide complex, Mn+(O)a(OH)b(Ap?)c.xH2O, wherein M is at least one metal ion; n is 3 or 4; A is an organic or inorganic ion; p is 1, 2 or 3; and x is equal to or greater than 0; with the proviso that when n is 3, then a, b and c each comprise a rational number as follows: 0?a<1.5; 0<b<3; and 0?pc<3, so that the charge of the M3+ metal ion is balanced; and when n is 4, then a, b and c each comprise a rational number as follows: 0?a<2; 0<b<4; and 0?pc<4, so that the charge of the M4+ metal ion is balanced.

Abstract: An ink jet recording element comprising a support having thereon an image-receiving layer, the ink jet recording element containing a metal(oxy)hydroxide complex, Mn+(O)a(OH)b(Ap?)c•xH2O, wherein M is at least one metal ion; n is 3 or 4; A is an organic or inorganic ion; p is 1, 2 or 3; and x is equal to or greater than 0; with the proviso that when n is 3, then a, b and c each comprise a rational number as follows: 0?a<1.5; 0<b<3; and 0?pc<3, so that the charge of the M3+ metal ion is balanced; and when n is 4, then a, b and c each comprise a rational number as follows: 0?a<2; 0<b<4; and 0?pc<4, so that the charge of the M4+ metal ion is balanced.

Abstract: A coating fluid for application to a support to prepare an ink jet recording medium comprises an aqueous dispersion of a synthetic polymer hydrogel and gelatin, the amount of the synthetic polymer hydrogel being from 5 to 50% by weight of the combined weight of synthetic polymer and gelatin. Preferably the coating fluid also contains a mordant, an aliphatic alcohol to assist dispersion of the hydrogel polymer and a particulate material to impart a porous structure to the coating. The invention also provides an inkjet recording medium comprising a support on which is an ink-receiving layer comprising the gelatin and a synthetic polymer hydrogel. The amount of the latter may be from 0.3 to 5 g/square meter.

Abstract: An ink jet recording element having a substrate having thereon: a) a subbing layer comprising an amine inactivated gelatin; and b) an image-receiving layer of a cross-linkable polymer containing hydroxyl groups and a polymeric mordant, the cross-linkable polymer being present at a thickness of from about 2 to about 40 ?m and the weight ratio of the cross-linkable polymer to the mordant being from about 30:70 to about 95:5.

Abstract: An ink jet recording element comprising a support having thereon an image-receiving layer, the ink jet recording element containing core/shell particles wherein the shell of the particles consists a metal(oxy)hydroxide complex, Mn+(O)a(OH)b(Ap?)c•xH2O, wherein M is at least one metal ion; n is 3 or 4; A is an organic or inorganic ion; p is 1, 2 or 3; and x is equal to or greater than 0; with the proviso that when n is 3, then a, b and c each comprise a rational number as follows: 0?a<1.5; 0<b<3; and 0?pc<3, so that the charge of the M3+ metal ion is balanced; and when n is 4, then a, b and c each comprise a rational number as follows: 0?a<2; 0<b<4; and 0?pc<4, so that the charge of the M4+ metal ion is balanced.

Abstract: An ink jet printing method comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element comprising a support having thereon an image-receiving layer, the ink jet recording element containing a metal hydroxide salt, (M2+)(OH)a(Ap?)b.xH2O; wherein: M2+ is at least one metal ion having a 2+ oxidation state; A is an organic or inorganic anion; p is 1 or 2; and x is equal to or greater than 0; and a and b comprise rational numbers as follows: 0<a<2 and 0<b<2 so that the charge of M2+ is balanced; C) loading the printer with an ink jet ink composition; and D) printing on the ink jet recording element using the ink jet ink composition in response to the digital data signals.

Abstract: A method for increasing the diameter of an ink jet ink dot resulting from the application of an ink jet ink drop applied to the surface of an ink jet recording medium having a support having thereon an image-receiving layer, the image-receiving layer containing: a) from about 20 to about 65% by volume of particles; b) from about 25 to about 70% by volume of a polymeric binder; and c) up to about 10% by volume of a cross-linking agent; the method comprising applying the ink jet ink drop on the surface of the image-receiving layer whereby the diameter of the ink jet ink dot is increased relative to that which would have been obtained if the image-receiving layer had greater than about 65% by volume of particles.

Abstract: An ink jet recording element having a support having thereon an image-receiving layer, the image-receiving layer containing: a) from about 20 to about 65% by volume of particles; b) from about 25 to about 70% by volume of a polymeric binder; and c) up to about 10% by volume of a cross-linking agent.

Abstract: An ink jet printing method having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element having a substrate having thereon: i) a subbing layer of a polymeric binder and a borate or a borate derivative, the borate or borate derivative being present in an amount of from up to about 3 g/m2, and the weight ratio of the polymeric binder to the borate or borate derivative is from about 0.2:1 to about 3:1; and ii) an image-receiving layer of inorganic particles and a cross-linkable polymer containing hydroxyl groups, the cross-linkable polymer being present in an amount of less than about 50 g/m2, and the weight ratio of the cross-linkable polymer to the inorganic particles is from about 5:95 to about 30:70; C) loading the printer with an inkjet ink composition; and D) printing on the image-receiving layer using the ink jet ink in response to the digital data signals.

Abstract: An ink jet recording element having a support having thereon an image-receiving layer of a polymeric network formed by a chemical reaction between a wet-strength polymer, amino-functionalized inorganic particles and a hydrophilic polymer other than a wet-strength polymer.

Abstract: An ink jet printing method having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element having a support having thereon a fusible, porous, image-receiving layer containing at least two types of hydrophobic polymer particles having different glass transition temperatures, the first type of hydrophobic polymer particles having a Tg higher than about 60° C. that is substantially monodisperse and the second type of hydrophobic polymer particles having a Tg lower than about 25° C.; C) loading the printer with an ink jet ink; and D) printing on the image-receiving layer using the ink jet ink in response to the digital data signals.

Abstract: An ink jet printing process, having the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an ink jet recording element having a support having thereon in order: i) at least one porous, ink-retaining layer; and ii) a fusible, porous ink-transporting layer having a film-forming, hydrophobic binder and fusible, polymeric particles of a cellulose ester; C) loading the printer with an ink jet ink compositions; and D) printing on the image-receiving layer using the ink jet ink in response to the digital data signals.

Abstract: An ink recording element having a support having thereon a hydrophilic absorbing layer, an inner layer of a poly(vinyl alcohol-ethylene oxide) copolymer, and a polymeric overcoat layer of a cellulose ether.

Abstract: An image recording medium for an ink jet printer comprises(a) a sheet of solvent absorbing microporous material which comprises a matrix of substantially water insoluble thermoplastic organic polymer, finely divided substantially water insoluble filler particles of which at least 50% by weight are siliceous particles said filler particles being distributed throughout the matrix and constituting from 40 to 90% by weight of said micorporous material, there being a network of interconnecting pores communicating substantially throughout said microporous material said pores constituting from 35 to 95% by volume of said microporous material, said sheet of microporous material having (b) a coating of a polyester. The polyester can be a condensation product obtained from dicarboxylic acids and glycols and contains sufficient hydrophilic groups such as sulphonate to make it water dispersible.

Abstract: An ink jet recording element having a support having thereon a fusible, porous, image-receiving layer of at least two types of hydrophobic polymer particles having different glass transition temperatures, the first type of hydrophobic polymer particles having a Tg higher than about 60° C. that is substantially monodisperse and the second type of hydrophobic polymer particles having a Tg lower than about 25° C.

Abstract: An ink jet printing process for improving the durability and image quality of an ink jet image having the steps of a) providing an ink jet recording element having a support having thereon an image-receiving layer containing an ink jet image; and b) applying over the surface of the image-receiving layer an overcoat layer of water-dispersible, smectite clay particles.

Abstract: An ink jet ink composition of water, humectant and a self-assembling colorant that is capable of spontaneously forming a nanoparticulate dispersion without any prior physical attrition or surface modification, the colorant having the formula: (A)m—Q—(Z)n wherein: Q represents a chromophore; each A independently represents an organic or inorganic group capable of hydrogen bonding or other non-covalent bonding; each Z independently represents an organic or inorganic group capable of electrostatic bonding; and m and n each independently represents an integer from 0 to 10; with the proviso that n+m is at least 1; and with the further proviso that at least about 50 wt. % of the colorant is present in the composition as particles.