Abstract: An ink composition, including an ink base and a wax emulsion. A viscosity of the ink composition is between 80 Pa·s and 400 Pa·s at 100 rad/s and 25° C., and a tack of the ink composition is between 32 g-m and 45 g-m at 60 seconds. The total wax content of the ink composition is between 1% and 5% by weight, based on a total weight of the ink composition, and the total water content of the ink composition is between 1% and 15% by weight, based on the total weight of the ink composition.

Abstract: An ink includes a plurality of silver nanoparticles, an aminomethylsilane viscosifier, and a hydrocarbon solvent. A method includes providing an ink including a plurality of silver nanoparticles, an aminomethylsilane viscosifier, and a hydrocarbon solvent, the method including printing an image on a substrate with the ink, and annealing the image on the substrate. An ink includes organoamine-stabilized silver nanoparticles, a viscosifier comprising N-(6-aminohexyl)aminomethyltriethoxysilane, and a hydrocarbon solvent.

Abstract: The present disclosure provides an ink comprising a fluorosurfactant-stabilized polymer latex, which is suitable for use in an indirect printing method.

Abstract: Disclosed herein are sacrificial coating compositions comprising at least one hydrophilic polymer; at least one hygroscopic agent; at least one surfactant; at least one non-reactive silicone release agent; and water. In certain embodiments, the at least one non-reactive silicone release agent is chosen from polyether modified polysiloxane and nonreactive silicone glycol copolymers. In certain embodiments, the at least one non-reactive silicone release agent may be present in an amount ranging from about 0.001% to about 2%, based on the total weight of the composition, such as from about 0.03% to about 0.06%. Also disclosed herein is a blanket material suitable for transfix printing comprising a sacrificial coating composition, as well as an indirect printing process comprising a step of applying a sacrificial coating composition to a blanket material.

Abstract: An aqueous sacrificial coating composition for an image transfer member in an aqueous ink imaging system is provided. The sacrificial coating composition may include at least one polymer, at least one selected from (i) at least one chain extender, or (ii) a reactive elastomeric latex, wherein the at least one chain extender comprises a species capable of linking linear chains or chain segments of the reactive elastomeric latex, at least one hygroscopic plasticizer, and at least one surfactant.

Abstract: An embodiment of the present disclosure is directed to a sacrificial coating composition for an image transfer member in an aqueous ink imaging system. The coating composition is made from ingredients comprising: a latex comprising polymer particles dispersed in a continuous liquid phase; at least one hygroscopic material; at least one oil-in-water emulsion; and at least one surfactant.

Abstract: A method of making a sacrificial coating composition is disclosed. The method comprises emulsifying an oil with surfactant to form an oil-in-water emulsion; and combining ingredients comprising (i) at least one polymer, (ii) at least one hygroscopic material, (iii) the oil-in water emulsion and (iv) water to produce the sacrificial coating composition. The at least one polymer is selected from the group consisting of a hydrophilic polymer, a latex comprising polymer particles dispersed in a continuous liquid phase, or mixtures thereof.

Abstract: A coating composition for an image transfer member in an aqueous ink imaging system. The coating composition includes at least one hydrophilic polymer, at least one hygroscopic material, at least one oil-in-water emulsion and at least one surfactant.

Abstract: Provided is a coating composition for an image transfer member in an aqueous ink imaging system. The coating composition can include at least one hydrophilic polymer, at least one of hygroscopic plasticizer, at least one surfactant, and water.

Abstract: There is provided a membrane that includes a plurality of polyimide fibers encased in a fluoropolymer sheath, the plurality of fibers having a diameter of from about 10 nm to about 50 microns, wherein the plurality of fibers form a permeable non-woven mat. A method of manufacturing the membrane is provided.

Abstract: In accordance with the invention, there are fuser subsystems including a fuser member and methods of making a member of the fuser subsystems. The fuser member can include a substrate and a top-coat layer disposed over the substrate, the top-coat layer including a plurality of fluorinated nanoparticles substantially uniformly dispersed throughout a bulk of a fluoropolymer to provide a continual self-releasing surface to the top-coat layer.

Abstract: Described herein is a method and apparatus for ink jet printing. The method includes providing a wetting enhancement coating on a transfer member. The wetting enhancement coating (WEC) includes water, an acid treated, waxy maize cationic starch, a humectant and a surfactant. The wetting enhancement coating is dried or semi-dried to form a film. Ink droplets are ejected onto the film to form an ink image on the film. The ink image is dried and the ink image and film are transferred to a recording medium.

Abstract: A process for preparing a coated image and a recording medium with a coated image thereon. The coated image includes a solid ink image prepared with solid ink and an overcoat that at least partially covers the solid ink image. An aqueous overcoat composition for application to a solid ink image containing at least one latex emulsion, at least one polymer wax or wax emulsion, and at least one co-binder.

Abstract: Disclosed herein are sacrificial coating compositions comprising at least one polymer chosen from polyvinyl alcohol and polyvinyl alcohol copolymers, a wax emulsion comprising at least one wax, at least one surfactant, at least one hygroscopic agent, and water. In certain embodiments, the at least one wax in the wax emulsion has a melting point approaching but just below the ink transfer temperature, such as, for example, a melting point ranging from about 50° C. to about 150° C. Also disclosed herein is a blanket material suitable for transfix printing comprising a sacrificial coating composition, as well as an indirect printing process comprising a step of applying a sacrificial coating composition to a blanket material.

Abstract: A member for a fuser assembly of a printer. The member may include a support body and a composite coating disposed on an outer surface of the support body. The composite coating may include a fluororesin and a nanocarbon material dispersed within the fluororesin. The nanocarbon material may be present in a higher concentration proximate the support body and a lower concentration proximate an outer surface of the composite coating. The lower concentration may be less than or equal to about 2 wt % of the nanocarbon material.

Abstract: Described herein is a method and apparatus for ink jet printing. The method includes providing a wetting enhancement coating on a transfer member. The wetting enhancement coating (WEC) includes water, an acid treated, waxy maize cationic starch, a humectant and a surfactant. The wetting enhancement coating is dried or semi-dried to form a film. Ink droplets are ejected onto the film to form an ink image on the film. The ink image is dried and the ink image and film are transferred to a recording medium.

Abstract: An indirect printing apparatus can include an intermediate transfer member, at least one jetting nozzle of a printhead positioned proximate the intermediate transfer member for jetting sacrificial coating composition droplets imagewise onto the intermediate transfer member, a drying station, at least one ink jet nozzle positioned proximate the intermediate transfer member, an ink processing station, and a substrate transfer mechanism. The drying station can be configured for drying the sacrificial coating composition to form a sacrificial coating pattern on the intermediate transfer member. The at least one ink jet nozzle can be configured for jetting ink droplets onto the sacrificial coating formed on the intermediate transfer member. The ink processing station can be configured to at least partially dry the ink on the sacrificial coating formed on the intermediate transfer member. The substrate transfer mechanism can be configured for moving a substrate into contact with the intermediate transfer member.

Abstract: Provided herein is a surface treatment method of oil contaminated xerographic prints which increases the adhesion of the print to levels close to the values corresponding to the original uncontaminated paper. Subjecting the contaminated surface to corona treatment alone and in combination with ultraviolet (UV) radiation and ozone can change the chemical structure of the surface of the paper in such a way that a highly polar surface is created as a consequence of this treatment, leading to enhanced adhesion properties of the xerographic print.

Abstract: A method includes forming a film over a printed image on a substrate, the film includes a print overcoat composition having a binder that includes an aqueous vinylacetate-ethylene copolymer emulsion, (1) a particulate additive as a dispersion or emulsion, (2) a co-binder, or (3) both, and a surfactant, the film provides wear and scratch resistance to the printed image.

Abstract: Exemplary embodiments provide a pressure-seal cohesive and method for making and using the pressure-seal cohesive to form mailer type business forms. The disclosed pressure-seal cohesive can provide an improved cohesive sealing of the mailer forms. In particular, the pressure-seal cohesive can include at least one silane promoter admixed with at least one aqueous pressure sensitive compound formulation that contains pressure sensitive cohesive and/or adhesive compounds. The admixed silane promoter can have a concentration ranging from about 0.5% to about 2.5% weight percent of the pressure-seal cohesive to improve the compatibility of the pressure sensitive compounds, even if they are contaminated by the fuser oils (e.g., functionalized PDMS oil) during digital printing processes (e.g., on Xerox iGen3).