Abstract: A continuous ink jet printer aqueous ink composition including pigment particles dispersed with a dispersant or self dispersing pigment particles without the need for a dispersant, and a polymer additive distinct from any dispersant used to disperse the pigment particles, wherein the polymer additive comprises a styrene-acrylic copolymer that does not substantially displace any dispersant used to disperse the pigment, present in an amount effective to stabilize the ink composition against shear induced agglomeration caused by pumping the ink composition through a continuous ink jet printing fluid system.

Abstract: A continuous ink jet printer aqueous ink composition including pigment particles dispersed with a dispersant or self dispersing pigment particles without the need for a dispersant, and a polymer additive distinct from any dispersant used to disperse the pigment particles, wherein the polymer additive comprises a styrene-acrylic copolymer that does not substantially displace any dispersant used to disperse the pigment, present in an amount effective to stabilize the ink composition against shear induced agglomeration caused by pumping the ink composition through a continuous ink jet printing fluid system.

Abstract: A continuous ink jet printer aqueous ink composition including pigment particles dispersed with a dispersant or self dispersing pigment particles without the need for a dispersant, and a polymer additive distinct from any dispersant used to disperse the pigment particles, wherein the polymer additive comprises a water soluble block copolymer having one or more poly(ethylene oxide) block segments wherein the polymer additive is present in an amount effective to stabilize the ink composition against shear induced agglomeration caused by pumping the ink composition through a continuous ink jet printing fluid system.

Abstract: Phosphor-containing panels or screens have improved resistance to yellowing and image defects by the incorporation of a primary or secondary amine having a pKa of 8.5 or more and a molecular weight of less than 10,000 daltons into the phosphor layer or an overcoat layer. A peroxide scavenger can also be present to further improve stability of the phosphor panel. The phosphors are preferably storage phosphors containing iodine. This phosphor panels can be prepared using non-peroxide-generating organic solvents for further stabilization.

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 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 comprising a support having thereon a porous image-receiving layer comprising particles, a poly(vinyl alcohol) binder and a crosslinking agent, the particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm, and the crosslinking agent being present in an amount of at least about 20 weight % of the poly(vinyl alcohol) binder.

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 containing core/shell particles wherein the shell of the particles consists of 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 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 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 inkjet recording element comprising a support having thereon a porous image-receiving layer comprising: (a) particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm; and (b) water insoluble, cationic, polymeric particles comprising at least about 20 mole percent of a cationic mordant moiety.

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 ink-receptive elements comprising a support having thereon an image-receiving layer comprising a cationic core/shell particle comprising a core and a shell containing at least one ethylenically unsaturated monomer containing a trialkylammonium salt; C) loading the printer with an ink jet ink composition comprising water, a humectant, and a water-soluble anionic dye; 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 method, comprising the steps of: A) providing an ink jet printer that is responsive to digital data signals; B) loading the printer with an inkjet recording element comprising a support having thereon a porous image-receiving layer comprising particles in a binder, the particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm, the image-receiving layer being coated from an acidic aqueous dispersion, and the recording element containing a subbing layer between the support and the porous image-receiving layer, the subbing layer comprising a basic material which is capable of raising the surface pH of the image-receiving layer at least about 2 pH units; C) loading the printer with an ink jet ink composition; and D) printing on the image-receiving layer using the ink jet ink composition in response to the digital data signals.

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 a porous image-receiving layer comprising particles and a poly(vinyl alcohol) binder, the particles comprising a fumed metallic oxide, and the binder having an average viscosity greater than about 25 cp at 4% solids in an aqueous solution at 20° C.; C) loading the printer with an ink jet ink composition; and D) printing on the image-receiving layer using the ink jet ink composition in response to the digital data signals.

Abstract: An ink jet recording element comprising a support having thereon in order: I) a porous base layer comprising particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm and which are dispersed in a binder, and II) a porous image-receiving layer comprising: (a) particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm; and (b) water insoluble, cationic, polymeric particles comprising at least about 20 mole percent of a cationic mordant moiety; the thickness of layer I) being between about 35 and about 50 &mgr;m and the thickness of layer II) being between about 2 and about 6 &mgr;m.

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 a porous image-receiving layer comprising: (a) particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm; and (b) water insoluble, cationic, polymeric particles comprising at least about 20 mole percent of a cationic mordant moiety; C) loading the printer with an ink jet ink composition; and D) printing on the image-receiving layer using the ink jet ink composition in response to the digital data signals.

Abstract: An ink jet printing method, comprising the steps of:

Abstract: An ink jet printing method, comprising the steps of:

Abstract: An ink jet recording element comprising a support having thereon a porous image-receiving layer comprising particles in a binder, the particles having a primary particle size of from about 7 to about 40 nm in diameter which may be aggregated up to about 300 nm, the image-receiving layer being coated from an acidic aqueous dispersion, and the recording element containing a subbing layer between the support and the porous image-receiving layer, the subbing layer comprising a basic material which is capable of raising the surface pH of the image-receiving layer at least about 2 pH units.

Abstract: An ink jet recording element comprising a support having thereon a porous image-receiving layer comprising particles and a poly(vinyl alcohol) binder, the particles comprising a fumed metallic oxide, and the binder having an average viscosity greater than about 25 cp at 4% solids in an aqueous solution at 20° C.