Abstract: An ink composition useful for digital offset printing applications includes a colorant and a radiation-curable water-dilutable compound. A process for variable data lithographic printing includes applying a dampening fluid to an imaging member surface; forming a latent image by evaporating the dampening fluid from selective locations on the imaging member surface to form hydrophobic non-image areas and hydrophilic image areas; developing the latent image by applying an ink composition including an ink component to the hydrophilic image areas, the ink composition having a radiation-curable water-dilutable compound, a colorant component, and water; and transferring the developed latent image to a receiving substrate, wherein the ink transfer efficiency is 90% or higher.

Abstract: Example techniques and systems may transmit provisioning information to respective computing devices for self-provisioning of each of the respective computing devices. In one example, a technique may include receiving, by a first computing device, account information for a plurality of users and sensing, with the first computing device, a second computing device in wireless communication range of the first computing device. Responsive to sensing the second computing device, the method may also include transmitting, by the first computing device and via wireless device-to-device communication, provisioning information from the first computing device to the second computing device. The provisioning information may include instructions for the second computing device to self-provision with a user account associated with one or more of the plurality of users.

Abstract: Compatible acrylate ink sets include acrylate ink composition having 30% or less by weight pigment, 10% or less dispersant, between 40% and 80% acrylate, 12% or less photoinitiator, a viscosity between 5×105 and 3×107 cps at 35° C., and a 60 second tack between 25 and 50 g-m at 35° C.

Abstract: The present disclosure is directed to a process black ink composition for digital offset printing including a cyan colorant including a cyan pigment, a magenta colorant including a magenta pigment and a yellow colorant including a yellow pigment, wherein the process black ink composition includes a total amount of pigment of at least about 15 wt %, a photo-initiator a dispersant, and a curable ink vehicle component including at least one component selected from a curable monomer or a curable oligomer; wherein the process black ink composition comprises a ratio of the cyan colorant to the yellow colorant of 0.70-0.80:1.0 and a ratio of the magenta colorant to the yellow colorant of 0.90-0.80:1.0, and wherein the process black ink composition does not comprise carbon black. Methods of preparing the present process black ink composition and using the process black ink composition are also provided.

Abstract: The present disclosure is directed to a process black ink composition for digital offset printing including a cyan colorant including a cyan pigment, a magenta colorant including a magenta pigment and a yellow colorant including a yellow pigment, wherein the process black ink composition includes a total amount of pigment of at least about 15 wt %, a photo-initiator, a dispersant, and a curable ink vehicle component including at least one component selected from a curable monomer or a curable oligomer wherein the process black ink composition comprises a ratio of the cyan colorant to the yellow colorant of 0.70-0.80:1.0 and a ratio of the magenta colorant to the yellow colorant of 0.90-0.80:1.0, and wherein the process black ink composition does not comprise carbon black. Methods of preparing the present process black ink composition and using the process black ink composition are also provided.

Abstract: Ink compositions are prepared by processes that include acoustically mixing a plurality of components at a resonance frequency. This encourages mixing of the components over a large range of viscosities with a minimal temperature rise and also shortens mixing time.

Abstract: Disclosed herein are ink compositions comprising at least one hyperbranched oligomer present in an amount ranging from about 3% to about 20% and having a functionality ranging from about 6 to about 40; at least one pigment present in an amount of at least about 10%; and at least one photoinitiator present in an amount ranging from 5% to 10%. Further provided herein are methods of printing using a variable data digital lithographic printing device.

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: The present disclosure is directed to a white ink composition for use in digital offset printing, including a first white colorant including a first plurality of white pigment particles, wherein an average diameter of at least about 40% of the first plurality of white pigment particles is in a range of about 250 nanometers to about 350 nanometers, a second white colorant including a second plurality of white pigment particles, wherein an average diameter of at least about 40% of the second plurality of white pigment particles is in a range of about 350 nanometers to about 550 nanometers, at least one dispersant, at least one component selected from a curable monomer or a curable oligomer, and a photo-initiator. Also provided is a method of digital offset printing using the white ink composition of the present disclosure.

Abstract: An ink composition, including 30% or less pigment, 10% or less dispersant, between 40% and 80% acrylate, 12% or less photoinitiator, and having a viscosity between 2×106 cP and 5×107 cP at 25° C., and between 2.×105 cP and 4.×106 cP at 60° C., and a 60 second tack between 40 and 65 g-m at 25° C., and between 10 and 20 g-m at 60° C.

Abstract: Provided is a method of patterning a substrate. The method includes depositing, in a first predetermined pattern, hydrophobic material on a first surface of a hydrophilic substrate. The method includes permeating the hydrophobic material through a thickness of the substrate without reflowing the deposited hydrophobic material. The method includes sufficiently solidifying the permeated hydrophobic material. The sufficiently solidified hydrophobic material forms a liquid-impervious barrier that separates the substrate into at least one discrete region.

Abstract: Red toners that approximate PANTONE® Red 032 and PANTONE® Warm Red are described. The colorant includes an orange colorant and a red colorant, where the orange colorant absorbs light having a wavelength of from about 400 to about 520 nm, and where the red colorant absorbs light having a wavelength of from about 500 to 580 nm.

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: A nanosilver ink composition including silver nanoparticles; a clay dispersion; and an ink vehicle. A process for forming conductive features on a substrate includes providing a nanosilver ink composition comprising silver nanoparticles; a clay dispersion; and an ink vehicle; depositing the nanosilver ink composition onto a substrate to form deposited features; and heating the deposited features on the substrate to form conductive features on the substrate.

Abstract: In one aspect, a system for providing a user interface including recommended content in response to an endorsement input is described. The system includes a processor and a memory storing instructions that, when executed, causes the system to: receive an input from a first user; determine that the input is related to an endorsement of a first content item from a first source; determine a social correlation between the first content item and a second content item from a second source, determine a source correlation between the first source and the second source, determine recommended content using the social correlation and the source correlation and provide the recommended content to the first user.

Abstract: There is described a surface layer or coating of a fluoropolymer. Dispersed in the fluoropolymer is a compound of the formula: wherein R1, R2, R3, and R4 each, independently of the others, are —H, alkyl, aryl, arylalkyl, or alkylaryl, R is a group of the formula —COOH, —COOM, —R5—COOH, —R5—COOM, —X—R5—COOH, or —X—R5—COOM wherein X and R5 are as defined herein, M is a cationic metal, A represents a saccharide monomer repeating unit having one or more R groups, B represents a saccharide monomer repeating unit having no R groups, m is an integer representing the number of repeating A units, and n is an integer representing the number of repeating B units.

Abstract: This disclosure is directed to functionalized carbon black material that may be particularly usable for as a filler material to a number of beneficial uses, particularly in image forming devices. The disclosed functionalized carbon black material compositions include hydrophobic carbon black particles passivated with polymerized pentafluorostyrene. The disclosed surface passivated carbon black particles have a diameter in a range of 50 nanometers to 1 micron, and enable dispersion in fluorinated polymers, and fine dispersion in solvent. The disclosed surface passivated carbon black particles are particularly usable for improving operational characteristics of fluorosilicone-based reimageable surface layers of imaging members employed in variable data digital lithographic image forming devices.

Abstract: An in situ process for preparing a phase change magnetic ink including heating a phase change ink composition to a first temperature sufficient to provide a melt composition; wherein the phase change ink composition comprises a carrier, an optional colorant, and an optional dispersant; placing the melt composition under inert atmosphere; heating the melt composition to a second temperature sufficient to effect decomposition of a metal carbonyl; adding the metal carbonyl to the melt composition under inert atmosphere at this second temperature to form metal nanoparticles thus forming in situ a phase change magnetic ink including the metal nanoparticles; optionally, filtering the phase change magnetic ink while in a liquid state; and cooling the phase change magnetic ink to a solid state.

Abstract: The disclosed embodiments are directed to a composition of an inverse emulsion acrylate ink for use in variable data digital lithographic image forming devices and methods for preparing and using the ink. The disclosed inverse emulsion acrylate ink includes an acrylate monomer, oligomer, polymer, or mixtures thereof that is a continuous phase, and water dispersed as an emulsion in the continuous acrylate phase. The disclosed inverse emulsion acrylate ink includes one or more of a color pigment component, a rheology modifying agent, a stabilizing agent, and a photoinitiator component. The water may be supplemented with a surfactant to lower a surface tension of the water.

Abstract: Disclosed is a phase change ink comprising: (a) an ink carrier comprising a compostable paraffin or polymethylene wax; and (b) a colorant.