Abstract: This invention relates to an ink jet ink composition comprising an aqueous medium and at least two different polymers, a first polymer and a second polymer, having a weight average acid number of 70 to 200. In one embodiment the ink is substantially colorless.

Abstract: An inkjet recording element having a support having thereon in sequence (a) a transparent, non-porous layer that can be swelled by water less than 0.67 of its original weight, and (b) a fusible, porous image-receiving layer. The inkjet recording element exhibits improved adhesion and excellent image quality. A method of inkjet printing is also disclosed.

Abstract: This invention relates to an ink jet ink composition comprising an aqueous medium and microgel particles, said particles comprising a crosslinked copolymer prepared from a monomer mixture comprising at least a crosslinking monomer, a polymerizable carboxylic acid monomer, and one or more polymerizable water insoluble vinyl type monomers. The ink composition may be a colorless ink or it may contain a colorant.

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 ink composition including from 40.0 to 99.0% by weight of water; from 0.1 to 20.0% by weight of a pigment dispersed with an oleoyl methyl taurine salt dispersant from 0 to 70.0% by weight of a water miscible co-solvent; and from 0.1 to 20.0% by weight of a water-reducible addition polymer; wherein the weight average molecular weight of the polymer is from 2,000 to 100,000; the acid number is from 50 to 400; and the acid group on the polymer is neutralized by an alkaline metal hydroxide such as lithium hydroxide, sodium hydroxide potassium hydroxide, or a mixture thereof; and wherein all weight percentages are based on the total weight of the ink composition. An ink jet printing method is also disclosed.

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 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 of non-porous polymeric particles having a core/shell structure of a polymeric, hydrophobic core covered with a polymeric, hydrophobic shell, the Tg of the polymeric, hydrophobic core being at least about 25° C. higher than the Tg of the polymeric, hydrophobic shell; C) loading the printer with an ink jet ink composition of water, a humectant, and a water-soluble dye; and D) printing on the overcoat layer using the inkjet ink in response to the digital data signals.

Abstract: An ink jet recording element having a support having thereon a fusible, porous, image-receiving layer having non-porous polymeric particles having a core/shell structure having a polymeric, hydrophobic core covered with a polymeric, hydrophobic shell, the Tg of the polymeric, hydrophobic core being at least about 25° C. higher than the Tg of the polymeric, hydrophobic shell.

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 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 ink composition comprising: from 40.0 to 99.0% by weight of water; from 0.1 to 20.0% by weight of a pigment; from 0 to 70.0% by weight of a water miscible co-solvent; and from 0.1 to 20.0% by weight of a water-reducible addition polymer; wherein the weight average molecular weight of the polymer is from 2,000 to 100,000; the acid number is from 50 to 400; and the acid group on the polymer is neutralized by an alkaline metal hydroxide such as lithium hydroxide, sodium hydroxide potassium hydroxide, or a mixture thereof; and wherein all weight percentages are based on the total weight of the ink composition. An ink jet printing method is also disclosed.

Abstract: An ink jet recording element having a support having thereon a fusible, porous, image-receiving layer having non-porous polymeric particles having a core/shell structure having a polymeric, hydrophobic core covered with a polymeric, hydrophobic shell, the Tg of the polymeric, hydrophobic core being at least about 25° C. higher than the Tg of the polymeric, hydrophobic shell.

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 of non-porous polymeric particles having a core/shell structure of a polymeric, hydrophobic core covered with a polymeric, hydrophobic shell, the Tg of the polymeric, hydrophobic core being at least about 25° C. higher than the Tg of the polymeric, hydrophobic shell; C) loading the printer with an ink jet ink composition of water, a humectant, and a water-soluble dye; and D) printing on the overcoat layer using the inkjet ink in response to the digital data signals.

Abstract: The present invention relates to imaging elements, including photographic elements and ink-jet recording media, having a protective overcoat that resists fingerprints, common stains, and spills. More particularly, the protective overcoat comprises a polycarbonate-containing polyurethane polymer having a Tg of 0 to 70° C. and a molecular weight of 15,000 to 200,000, wherein the amount of polycarbonate, based on the total weight of the polymer, is at least 20 percent.

Abstract: The present invention is an imaged photographic element which includes a support, at least one silver halide light-sensitive emulsion layer superposed on the support; and a protective overcoat furthest from the support. The protective overcoat is superposed on the silver halide light sensitive layer. The protective overcoat includes a first polymeric particle having a glass transition temperature of greater than or equal to 25.degree. C. and a particle size of from 5 to 500 nm and a second polymeric particle having a glass transition temperature of less than 25.degree. C. and a particle size of from 5 to 500 nm at a weight ratio of the first polymeric particle to the second polymeric particle of from 3:97 to 80:20 and wax particle having a size of from 0.01 .mu.m to 0.5 .mu.m. The protective overcoat is applied from an aqueous coating.

Abstract: The present invention is an imaged photographic element having a protective overcoat thereon. The protective overcoat formed by the steps of providing a photographic element having at least one silver halide light-sensitive emulsion layer; applying a coating comprising hydrophobic polymer particles having an average size of 0.01 to 1 microns, a melting temperature of from 55.degree. to 200.degree. C. at a weight percent of 30 to 95, and gelatin at a weight percent of 5 to 70 over the at least one silver halide light-sensitive emulsion layer. The silver halide light sensitive emulsion layer is developed to provide an imaged photographic element. The hydrophobic polymer particles are then fused to form a protective overcoat. In an alternate embodiment the coating further includes water soluble polymer materials at a weight percent of from 5 to 45.