Abstract: Inkjet printed articles can be made by providing an inkjet receiving medium comprising a substrate and a topcoat layer, and inkjet printing an aqueous pigment-based ink onto the topcoat layer. The topcoat layer has: (a) one or more water-soluble salts of a multivalent metal cation; and (b) composite particles having a Rockwell Hardness of ?R90 and each of the composite particles comprising domains of a (i) first organic polymer and domains of a (ii) second organic polymer. The domains of the (ii) second organic polymer are dispersed within the domains of the (i) first organic polymer. The melting point of the (i) first organic polymer is lower than the melting point of the (ii) second organic polymer. The weight ratio of the (i) first organic polymer to the (ii) second organic polymer is chosen such that the (b) composite particles have a density of 1.0-1.5 g/ml.

Abstract: An inkjet receiving medium having enhanced surface properties has a substrate and a topcoat layer disposed thereon. The topcoat layer has: (a) one or more water-soluble salts of a multivalent metal cation; and (b) composite particles having a Rockwell Hardness of less than or equal to R90 and each of the composite particles comprising domains of a (i) first organic polymer and domains of a (ii) second organic polymer. The domains of the (ii) second organic polymer are dispersed within the domains of the (i) first organic polymer. The melting point of the (i) first organic polymer is lower than the melting point of the (ii) second organic polymer. The weight ratio of the (i) first organic polymer to the (ii) second organic polymer is chosen such that the (b) composite particles have a density of 1.0-1.5 g/ml.

Abstract: An aqueous composition can be used for pre-treating a substrate prior to inkjet printing. This composition includes: (a) one or more water-soluble salts of a multivalent metal cation; and (b) composite particles having a Rockwell Hardness of less than or equal to R90 and each of the composite particles comprising domains of a (i) first organic polymer and domains of a (ii) second organic polymer. The domains of the (ii) second organic polymer are dispersed within the domains of the (i) first organic polymer. Moreover, the melting point of the (i) first organic polymer is lower than the melting point of the (ii) second organic polymer. The weight ratio of the (i) first organic polymer to the (ii) second organic polymer is chosen such that the (b) composite particles have a density of 1.0-1.5 g/ml.

Abstract: Inkjet receiving medium are prepared by disposing an aqueous composition onto at least one surface of a substrate to provide a topcoat layer. The aqueous composition has: (a) one or more water-soluble salts of a multivalent metal cation; and (b) composite particles having a Rockwell Hardness of less than or equal to R90 and each of the composite particles comprising domains of a (i) first organic polymer and domains of a (ii) second organic polymer. The domains of the (ii) second organic polymer are dispersed within the domains of the (i) first organic polymer. The melting point of the (i) first organic polymer is lower than the melting point of the (ii) second organic polymer. The weight ratio of the (i) first organic polymer to the (ii) second organic polymer is chosen such that the (b) composite particles have a density of 1.0-1.5 g/ml.

Abstract: Inkjet receiving medium are prepared by disposing an aqueous composition onto at least one surface of a substrate to provide a topcoat layer. The aqueous composition has: (a) one or more water-soluble salts of a multivalent metal cation; and (b) composite particles having a Rockwell Hardness of less than or equal to R90 and each of the composite particles comprising domains of a (i) first organic polymer and domains of a (ii) second organic polymer. The domains of the (ii) second organic polymer are dispersed within the domains of the (i) first organic polymer. The melting point of the (i) first organic polymer is lower than the melting point of the (ii) second organic polymer. The weight ratio of the (i) first organic polymer to the (ii) second organic polymer is chosen such that the (b) composite particles have a density of 1.0-1.5 g/ml.

Abstract: Inkjet printed articles can be made by providing an inkjet receiving medium comprising a substrate and a topcoat layer, and inkjet printing an aqueous pigment-based ink onto the topcoat layer. The topcoat layer has: (a) one or more water-soluble salts of a multivalent metal cation; and (b) composite particles having a Rockwell Hardness of ?R90 and each of the composite particles comprising domains of a (i) first organic polymer and domains of a (ii) second organic polymer. The domains of the (ii) second organic polymer are dispersed within the domains of the (i) first organic polymer. The melting point of the (i) first organic polymer is lower than the melting point of the (ii) second organic polymer. The weight ratio of the (i) first organic polymer to the (ii) second organic polymer is chosen such that the (b) composite particles have a density of 1.0-1.5 g/ml.

Abstract: An inkjet receiving medium having enhanced surface properties has a substrate and a topcoat layer disposed thereon. The topcoat layer has: (a) one or more water-soluble salts of a multivalent metal cation; and (b) composite particles having a Rockwell Hardness of less than or equal to R90 and each of the composite particles comprising domains of a (i) first organic polymer and domains of a (ii) second organic polymer. The domains of the (ii) second organic polymer are dispersed within the domains of the (i) first organic polymer. The melting point of the (i) first organic polymer is lower than the melting point of the (ii) second organic polymer. The weight ratio of the (i) first organic polymer to the (ii) second organic polymer is chosen such that the (b) composite particles have a density of 1.0-1.5 g/ml.

Abstract: In accordance with the present invention, there is provided a multi-layered structure includes: a) a water-impermeable substrate; b) a first layer on at least one surface of the substrate comprising a water-based tie-layer composition; c) a second layer formed over the first layer, wherein the second layer is a water-based ink-receptive composition includes: i) a multivalent metal salt; and ii) a hydrophilic binder polymer; d) a third layer including at least one water-based ink composition deposited in a single pass by an inkjet printing process, wherein the water-based ink composition includes an anionically stabilized, water-dispersible pigment; and e) additional layers deposited over the one or more ink layers and exposed second layer, the additional layers selected from one or more of the following compositions: i) an opaque white layer; ii) a protective layer; and iii) an adhesive layer, further includes a continuous protective plastic or paper layer adhered thereto.

Abstract: In accordance with the present invention, there is provided a multi-layered structure includes: a) a water-impermeable substrate; b) a first layer on at least one surface of the substrate comprising a water-based tie-layer composition; c) a second layer formed over the first layer, wherein the second layer is a water-based ink-receptive composition includes: i) a multivalent metal salt; and ii) a hydrophilic binder polymer; d) a third layer including at least one water-based ink composition deposited in a single pass by an inkjet printing process, wherein the water-based ink composition includes an anionically stabilized, water-dispersible pigment; and e) additional layers deposited over the one or more ink layers and exposed second layer, the additional layers selected from one or more of the following compositions: i) an opaque white layer; ii) a protective layer; and iii) an adhesive layer, further includes a continuous protective plastic or paper layer adhered thereto.

Abstract: A method for improving durability of aqueous ink deposited on a substrate having multivalent metal salt present at the surface of the substrate is disclosed. The method includes depositing aqueous ink on the surface of the substrate, wherein the aqueous ink is an anionically stabilized pigment ink, drying the substrate to substantially remove the water from the deposited aqueous ink, applying substantially pure water and heat to the dried substrate with deposited aqueous ink, and removing the applied water and heat to return the dried substrate to an ambient temperature and moisture content. The applied substantially pure water and heat are sufficient to cause a significant improvement of the durability of the deposited ink on the substrate.

Abstract: An inkjet receiving media comprising a substrate having a transparent topmost layer coated thereon at solid content of from 0.3 to 2.5 g/m2, wherein the topmost layer includes from 30-70 wt % of one or more aqueous soluble salts of multivalent metal cations, 5 to 20 wt % of a cross-linked hydrophilic polymer binder, 4 to 12 wt % of a cationic polymer to stabilize 10 to 40 wt % silica that is less than 200 nm is size. Improved optical density, reduced mottle and improved wet abrasion resistance are provided when the receiver is printed with an aqueous pigment-based ink. In further embodiments, the topmost layer can further include high levels of silica that makes the layer porous.

Abstract: A method of printing with water-based inkjet inks on a water-impermeable, low-surface-energy substrate, includes: a) modifying surface properties of the substrate to increase the surface energy; b) coating the modified surface of the substrate with a first layer comprising a colorless water-based tie-layer composition; c) coating over the first layer with a second layer including a colorless and transparent water-based ink-receptive composition including: i) a water-soluble multivalent metal salt; and ii) a hydrophilic binder polymer; d) depositing directly on the surface of the second layer one or more water-based ink compositions containing an anionically stabilized pigment colorant, wherein the one or more water-based ink compositions are deposited in a predetermined pattern with an inkjet deposition system in response to electrical signals; and e) drying the first and second coated layers and the deposited inks to substantially remove the water.

Abstract: A method for improving durability of aqueous ink deposited on a substrate having multivalent metal salt present at the surface of the substrate is disclosed. The method includes depositing aqueous ink on the surface of the substrate, wherein the aqueous ink is an anionically stabilized pigment ink, drying the substrate to substantially remove the water from the deposited aqueous ink, applying substantially pure water and heat to the dried substrate with deposited aqueous ink, and removing the applied water and heat to return the dried substrate to an ambient temperature and moisture content. The applied substantially pure water and heat are sufficient to cause a significant improvement of the durability of the deposited ink on the substrate.

Abstract: A coating composition for pre-treating a substrate prior to inkjet printing thereon, and an inkjet receiving medium including a substrate and having a topmost layer coated thereon, where the coating composition has a solids content which includes at least 30 wt % of one or more aqueous soluble salts of multivalent metal cations, and particles had primarily of polymer having a Rockwell Hardness of less than R90 and having a mode equivalent spherical diameter of at least about 2 micrometers. When coated, the composition provides at least 0.01 g/m2 of particles included primarily of polymer having a Rockwell Hardness of less than R90 and which have an equivalent spherical diameter of i) at least about 2 micrometers and ii) at least 0.1 micrometer greater than the minimum coated thickness of the topmost layer.

Abstract: An inkjet receiving media comprising a substrate having a transparent topmost layer coated thereon at solid content of from 0.3 to 2.5 g/m2, wherein the topmost layer includes from 30-70 wt % of one or more aqueous soluble salts of multivalent metal cations, 5 to 20 wt % of a cross-linked hydrophilic polymer binder, 4 to 12 wt % of a cationic polymer to stabilize 10 to 40 wt % silica that is less than 200 nm is size. Improved optical density, reduced mottle and improved wet abrasion resistance are provided when the receiver is printed with an aqueous pigment-based ink. In further embodiments, the topmost layer can further include high levels of silica that makes the layer porous.

Abstract: A coating composition for pre-treating a substrate prior to inkjet printing thereon, and an inkjet receiving medium comprising a substrate and having a topmost layer coated thereon, where the coating composition has a solids content which comprises at least 30 wt % of one or more aqueous soluble salts of multivalent metal cations, and particles comprised primarily of polymer having a Rockwell Hardness of less than R90 and having a mode equivalent spherical diameter of at least about 2 micrometers. When coated, the composition provides at least 0.01 g/m2 of particles comprised primarily of polymer having a Rockwell Hardness of less than R90 and which have an equivalent spherical diameter of i) at least about 2 micrometers and ii) at least 0.1 micrometer greater than the minimum coated thickness of the topmost layer.

Abstract: The invention describes silver halide packet emulsion grains or crystals that are conventionally precipitated using gelatin of a given isoelectric pH, surrounded by a layer of gelatin-grafted-polymer particles wherein the grafted gelatin has a different isoelectric pH and the said gelatin-grafted-polymer particles are optionally chemically bonded to the gelatin surrounding the silver halide microcrystals. Such packet emulsions can form the basis for a mixed-packet color photographic system.

Abstract: This invention describes the composition and method of preparation of heteroflocculated packet emulsion clusters containing a light sensitive and selectively photosensitized silver halide emulsion particles and particles of photographic agents such as dye-forming coupler particles. The silver halide emulsion particles are associated with a layer of adsorbed peptizing gelatin with an isoelectric pH of P.sub.1 and the grafted gelatin of the gelatin-grafted-polymer particles comprising the photographic agent has an isoelectric pH of P.sub.2 such that P.sub.1 is different than P.sub.2. At least one of the peptizing and grafted gelatins is an isoing gelatin which is sufficiently derivatized to remove ionic groups thereof such that approaching the isoelectric pH in an aqueous solution of the isoing gelatin causes massive heteroflocculation.