Abstract: A photopolymerizable inkjet ink including: a photopolymerizable monomer having a Stimulation Index (SI value) of less than 3, where the Stimulation Index indicates the extent of sensitization as measured by a skin sensitization test based on Local Lymph Node Assay; and a phenol aromatic compound having two hydroxyl groups in the molecule thereof.

Abstract: An image forming method uses an ink set that includes applying a liquid composition onto a recording medium; further applying a ink composition onto the recording medium with an ink jet method to form an image; drying the image at a surface temperature of the image of 35° C. to 55° C. until a difference between a residual water content of a non-image portion on the recording medium and a residual water content of a image portion where an application amount of the ink composition is the maximum is 2 g/m2 to 4 g/m2; and irradiating the image with active energy rays: the ink set includes the ink composition containing at least a pigment, water, 3% by mass or less of polymer particles, and 5% by mass to 15% by mass of polymerizable compound having an acrylamide structure represented by the formula (1); and the liquid composition containing an aggregation component.

Abstract: Disclosed is an aqueous inkjet ink which may contain water, a pigment, an organic or an inorganic acid, an amine, a resin that has a higher pKa than the organic or the inorganic acid, and a cross-linking agent. The aqueous inkjet ink exhibits excellent abrasion resistance even in cases where the drying time is short, while having high bleeding resistance and high storage stability. Also disclosed is a method for forming an inkjet image.

Abstract: A release agent application system includes an image receiving member, a release agent applicator roller, a release agent pad, a release agent reservoir, and an actuator. The actuator operates the release agent applicator roller to move it between a resting position, where the roller absorbs release agent from the pad, and an application position, where the roller engages a surface of the image receiving member and to transfer release agent to the image receiving member.

Abstract: An inkjet recording ink set, which contains at least: a black pigment ink; and a color pigment ink, wherein the black pigment ink contains a black pigment treated with an anionic surfactant, and a black pigment coated with a resinous polymer, and water, and the black pigment ink is a pigment dispersion liquid where the black pigment treated with the anionic surfactant and the black pigment coated with the resinous polymer are dispersed in the water, and wherein the color pigment ink contains a color pigment, a nonionic surfactant, and water, and the color pigment ink is a pigment dispersion liquid where the color pigment is dispersed in the water with assistance of the nonionic surfactant.

Abstract: A nonaqueous ink composition for ink jet recording includes a solvent represented by general formula (1) and having a hydrophile-lipophile balance value of 10.5 to 20.0: where R1 denotes an alkyl group having 1 to 4 carbon atoms.

Abstract: An inkjet recording ink, which contains: carbon black; a surfactant; water; a water-soluble organic solvent; and particles formed of an anionic self-emulsifying poly(ether urethane) resin, wherein the carbon black contains first carbon black whose surface has been treated with an anionic surfactant and second carbon black which has been coated with a resinous polymer, where a mass ratio of the first carbon black to the second carbon black is 10/90 to 90/10, and wherein the anionic surfactant is a naphthalenesulfonic acid-formaldehyde condensate.

Abstract: The invention provides an image forming method including at least applying an ink composition to a recording medium to form an image, the recording medium having an absorption amount of the ink composition, within 20 msec1/2 from a start of contact of the ink composition with the recording medium, of 20 ml/m2 or larger according to the Bristow method and being conveyed in a feed direction at a conveying speed of 80 m/min or higher, and the ink composition containing at least a pigment, a compound represented by the following Formula (1), wax and water. In Formula (1), each of l, m, and n independently represents an integer of 1 or more; the sum of l, m, and n is from 3 to 15; and each AO of (AO)l, (AO)m, and (AO)n independently represents an ethyleneoxy group or a propyleneoxy group.

Abstract: The nonaqueous ink composition for ink jet printing contains a compound represented by General Formula (1) below, and a heterocyclic compound selected from lactones and lactams. (In Formula (1), R1 represents an alkyl group having 1 to 4 carbon atoms, and R2 and R3 represent a methyl group or an ethyl group.

Abstract: The present invention relates to [1] an ink-jet printing method including the steps of applying an ink (A) having a static surface tension of from 23 to 70 mN/m and containing a poly(N-acylalkylene imine)-modified silicone and a cationic polymer onto a recording medium, and then applying by ink-jet printing, a water-based ink (B) onto the recording medium; [2] a recording paper for ink-jet printing which is obtainable by applying an ink (A) having a static surface tension of from 23 to 70 mN/m and containing a poly(N-acylalkylene imine)-modified silicone and a cationic polymer onto a recording medium; and [3] a water-based ink set including an ink (A) having a static surface tension of from 23 to 70 mN/m and containing a poly(N-acylalkylene imine)-modified silicone and a cationic polymer, and a water-based ink (B) containing an anionic colorant.

Abstract: A print method, print apparatus and printed medium include forming a black portion of an image from two inks. The first ink (62) includes first carbon black pigment units (66) and a first binder (68). The first carbon black pigment units (66) have a median dibutylphthalate absortion (DBP) of at least 95 cc/100 g. The first ink (62) has a first ratio of the first carbon black pigment units to the first binder. The second ink (64) includes second carbon black pigment units and a second binder. The second ink has a second ratio of the second carbon black pigment units to the second binder less than the first ratio. The first ink and the second ink together have a median total weight per unit area of at least 70 percent of an absorptive capacity of the print medium and overlap one another, wherein the second ink is at least 54 percent of the total weight per unit area.

Abstract: An ink for an ink-jet recording apparatus contains water, a pigment, a resin, 1,3-propanediol, and an organic solvent. The resin has a weight-average molecular weight of 30,000 to 150,000. The content of the resin is 1.5% to 6.0% by mass with respect to the mass of the ink. The total content (P+Q) of the content of the glycerol (P) and the content of the 1,3-propanediol (Q) in the ink is 15% to 40% by mass with respect to the mass of the ink. The mass ratio (P/Q) is 0.25 to 1.00.

Abstract: An ink composition of the present invention includes: cross-linked particles containing a quinacridone solid solution pigment including at least two types of quinacridone-based compound; a water-soluble polymerizable compound; a polymerization initiator; and water. By selectively using cross-linked solid solution pigments as pigments (colorants), along with excellent adhesion of the image, the stability over time of the ink composition itself is excellent.

Abstract: Disclosed is an aqueous ink composition, including an aqueous solvent, a coloring agent dissolved or dispersed in the aqueous solvent, an ABA-type amphipathic polymer including a hydrophobic segment A and a hydrophilic segment B, and an anionic surfactant configured to dissolve or disperse the ABA-type amphipathic polymer in the aqueous solvent, wherein a viscosity of the aqueous ink composition is changed depending on a pH thereof.

Abstract: An ink leveling device for controlling a temperature difference across a substrate having ink disposed on the upper surface, the device including a cooling device cooling a bottom of a substrate to a first temperature that is lower than a viscosity threshold temperature of the ink, a heating device heating the upper surface of the ink layer to a second temperature that is greater than the viscosity threshold temperature of the ink and a device applying shear force across the upper surface of the ink layer.

Abstract: A phase change ink composition including an ink vehicle; an optional colorant; and ethylene vinyl acetate in an amount of from about 0.1 to about 10 percent by weight based on the total weight of the phase change ink composition.

Abstract: A fixer composition is disclosed herein. An example of the fixer composition includes from about 5 wt % to about 25 wt % of a co-solvent, from about 1 wt % to about 20 wt % of a calcium salt, from about 0.01 wt % to about 0.6 wt % of a sulfonated chelating agent, and a balance of water.

Abstract: A non-aqueous ink comprising a carbon black and a non-aqueous solvent is provided, wherein the carbon black comprises: a carbon black (A) having a primary particle size of at least 18 nm but less than 30 nm, a DBP absorption of at least 80 cm3/100 g but not more than 130 cm3/100 g and a pH of at least 6.0 but not more than 9.0, and a carbon black (B) having a primary particle size of at least 30 nm but not more than 50 nm, a DBP absorption of at least 40 cm3/100 g but less than 80 cm3/100 g and a pH of at least 6.0 but not more than 9.0.

Abstract: An ink jet ink containing a coloring material and a polymer particle, wherein the polymer particle has a core portion and a shell portion, the shell portion contains a copolymer A having a unit derived from a compound (a1) represented by a general formula (1) of R1—(C2H4O)n—R2 where R1 is at least one selected from a vinyl group, an allyl group, an acryloyl group and a methacryloyl group, R2 is a hydrogen atom or an alkyl group, and n is 30-100, and a unit derived from an ?,?-unsaturated hydrophobic compound (a2), a proportion of the unit derived from the compound (a1) to the copolymer A is 50-90% by mass or less, a proportion of the unit derived from the compound (a2) to the copolymer A is 10-50% by mass or less, and the core portion contains a polymer of an ?,?-unsaturated hydrophobic compound (b).

Abstract: An apparatus for printing and activating an adhesive upon labels with fluid activatable adhesive having a print head and a path along which a label travels to the print head for printing on a front surface of the label. The path after printing reverses the orientation of the label to present the back surface of the label to the print head for applying a fluid for activating a layer of adhesive material on back surface of the label prior to the label exiting the apparatus.