Abstract: The invention provides an ink that inhibits lowering of ejection stability caused by a precipitate derived from a self-dispersible type monoazo pigment and also inhibits deterioration of a liquid contact surface of a heater portion of a recording head. The ink is an ink for ink jet recording system employing an thermal energy, containing a monoazo pigment, a resin and a surfactant represented by the following formula (1). A proportion of a molecular weight of an ethylene oxide group moiety occupying the surfactant is 10% or more and 85% or less, the monoazo pigment is a self-dispersible pigment to the particle surface of which at least one hydrophilic group selected from the group consisting of —COOM, —SO3M, —PO3HM and —PO3M2 is bonded directly or through another atomic group, and the acid value of the resin is 240 mg KOH/g or less.

Abstract: When a skewness of brightness of a print target image is a first skewness, print data is generated such that an ink amount of a metallic ink is a first amount. When the skewness of brightness is a second skewness that is larger than the first skewness, a print data is generated such that the ink amount is a second amount that is larger than the first amount.

Abstract: A radiation curable composition includes a) at least one monomer comprising at least one vinyl ether group and at least one (meth)acrylate group; and b) at least one diffusion hindered photoinitiator selected from the group consisting of a polymeric photoinitiator, a multifunctional photoinitiator and a polymerizable photoinitiator characterized in that the diffusion hindered photoinitiator includes at least one structural moiety according to Formula (I): wherein: R1 and R2 are independently selected from the group consisting of a hydrogen, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted alkaryl group, a substituted or unsubstituted aryl or heteroaryl group, a halogen, an ether, a thioether, an aldehyde, a ketone, an ester, an amide, an amine and a nitro group; R1 and R2 may represent the necessary atoms to form a five to eight membered rin

Abstract: The invention provides provide an ink jet ink exhibiting such an excellent ejection property that when an ink containing a polymer capable of improving the scratch resistance of a recorded article is used, the deviation of the ink-droplet impact point on a recording medium is prevented. The ink jet ink contains a polymer and a surfactant, wherein the acid value of the polymer is from 100 mg KOH/g or more to 220 mg KOH/g or less, the weight-average molecular weight of the polymer is from 3,000 or more to 10,000 or less, and the surfactant has a structure represented by the following formula (1) wherein n is a numerical value of from 3 or more to 27 or less, and m is a numerical value of from 16 or more to 31 or less.

Abstract: A method for making a flexographic printing master includes the steps of providing a flexographic printing support; applying image-wise on the flexographic printing support subsequent layers of radiation curable liquid by an inkjet printing device whereby one or more applied layers are immobilized using a curing device before one or more subsequent layers are applied, such that a relief with a top hat profile is obtained; and grinding the relief so that the height DT of a top hat segment is reduced. An imaging apparatus includes structure to perform the above method.

Abstract: An ink cartridge including a holding member and an ink bag to accommodate ink, wherein the ink cartridge is replenished with pigment ink having a pH higher than a pH of residual ink remaining in the ink cartridge.

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 method for printing images on a substrate with an ink jet printer includes providing a liquid ink composition. The liquid ink composition includes an organic solvent, a binder, and a colorant. Droplets of the ink jet ink composition are directed to a plastic film substrate. The droplets are allowed to dry, thereby printing a durable graphic image on the substrate.

Abstract: An image recording composition including a curable material that is cured upon application of an external stimulus, water-absorbing resin particles, and a nonionic surfactant.

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 contains a resin A, a resin B, and a pigment, in which the pigment is a halogenated metal phthalocyanine pigment being dispersed by the resin B, the resin A is a random copolymer having a carboxy group, the resin B is a block copolymer having a carboxy group, the acid value of the resin A is less than the acid value of the resin B, and the ink further includes a polybasic acid having a functional group whose pKa is 4.3 or less and a functional group whose pKa is 5.0 or more and 6.6 or less.

Abstract: An ink jet ink containing a pigment and a polyurethane polymer, wherein the polyurethane polymer has units derived from a polyol having no acid group and having the carbon number of 13 or more and 250 or less, a diol having an acid group and having the carbon number of 1 or more and 7 or less, a polyol having a siloxane structure, and a polyisocyanate, and an acid value of the polyurethane polymer is 40.0 mgKOH/g or more and 80.0 mgKOH/g or less.

Abstract: An ink jet recording method includes forming a glittering image on a recording medium by ejecting a glittering ink containing silver onto the recording medium by an ink jet method, applying a protective ink containing a resin and substantially no coloring material onto the glittering image, and forming a color image by ejecting a color ink containing a coloring material to the glittering image by an ink jet method. The protective ink is applied between the glittering image and the color image.

Abstract: Disclosed is an aqueous ink for inkjet that contains water, pigment, organic or inorganic acid (A) and ammonia or amines (B) or ammonium salts of organic or inorganic acids, a resin having anionic groups (C), and an amphoteric resin having both anionic and cationic groups (D). The aqueous ink for inkjet is characterized by fulfilling the relationship pKa(A)<pKa(C)<7 when pKa(A) is the pKa of the organic or inorganic acid (A) and pKa(C) is the pKa of said resin having anionic groups (C). By means of the aqueous ink for inkjet and the inkjet recording method, the occurrence of bleeding during high-speed printing can be reduced, and a high detail image quality can be obtained.

Abstract: A pigment ink includes an acetylene glycol or 2-ethyl-1,3-hexanediol, and an unsaturated fatty acid, an amino acid, an alkali metal hydroxide and an amine.

Abstract: The present disclosure provides an ink-jet ink containing an aqueous ink vehicle, an aqueous dispersion and a polymeric binder. The aqueous dispersion contains a colorant and a polyurethane dispersant, wherein the polyurethane dispersant is made with a polymer having cross-linkable moieties that are cross-linked with a cross-linking agent.

Abstract: There is provided a water-based ink for ink-jet recording, including: a self-dispersible pigment modified by sulfonic acid group; glycerol; diethylene glycol; a penetrant; and water, wherein the glycerol and the diethylene glycol satisfy the following condition (i): 0.01?DEG/(Gly+DEG)?0.11??(i) in the condition (i), Gly represents an amount of the glycerol in the water-based ink (% by weight); and DEG represents an amount of the diethylene glycol in the water-based ink (% by weight).

Abstract: The present disclosure includes compositions, methods, and systems having an ink-jet ink including a liquid vehicle, a colorant dispersed or dissolved in the liquid vehicle, inter-crosslinkable latex particles dispersed in the liquid vehicle, and an inter-particle crosslinker. The inter-crosslinkable latex particles can have at least one hydrophobic monomer; at least one acidic monomer; at least one inter-crosslinkable monomer including at least one keto group; the inter-crosslinkable monomer having the structure described in Formula 1. Additionally, the inter-crosslinkable latex particles can be intra-crosslinked forming an inter-particle crosslinked latex polymer film after printing and upon at least partial depletion of the liquid vehicle or liquid vehicle component.

Abstract: An ink-jet ink composition includes a jettable vehicle, a plurality of pigment solids dispersed in the jettable vehicle, and a half-ester of styrene maleic anhydride (SMA) dispersed in the jettable vehicle.

Abstract: An ink jet printing ink for use in an ink jet printing method. The ink is ejected from a print head by the action of thermal energy and includes water, a self-dispersing pigment, and at least two types of resin particles. One of the at least two types of resin particles (resin particle A) and another of the at least two types of resin particles (resin particle B) have an average particle size of 80 nm or more but 220 nm or less and an acid value of 25 mgKOH/g or more but 150 mgKOH/g or less. The resin particle A has a glass transition temperature of 25 degrees Celsius or less. The resin particle B has a glass transition temperature of 25 degrees Celsius or more. A difference in glass transition temperature between the resin particle A and the resin particle B is 10 degrees Celsius or more.

Abstract: Ink compositions and method of making the same are disclosed. A disclosed example ink composition includes a liquid vehicle, a colorant system and polyurethane vinyl hybrid latexes. Also disclosed is a method of using such ink composition containing polyurethane vinyl hybrid latexes.

Abstract: An inkjet ink includes a non-polar carrier, a colorant dispersed in the non-polar carrier, a dispersant, and non-swellable latex particles of a cross-linked polymer dispersed in the non-polar carrier. The colorant is chosen from a pigment, a dye, or a combination of a pigment and a dye. The cross-linked polymer consists of: an acrylic monomer having a molecular weight less than 1000, a vinylic monomer having a molecular weight of less than 1000, or combinations thereof.

Abstract: Water and a pigment, as well as a high penetrating agent, a penetrating agent and a moisturizing agent each having specific kind and amount are incorporated in an ink for an inkjet recording apparatus. The high penetrating agent is an alkyl-substituted 1,3-hexanediol or an alkyl-substituted 1,3-pentanediol each having 8 carbon atoms. The penetrating agent is a C1-C4 monoalkyl ether of a polyhydric alcohol, a C6-C8 monoalkyl ether of a polyhydric alcohol, or a polyhydric alcohol dibutyl ether. The moisturizing agent is glycerin and 1,3-propanediol.

Abstract: Disclosed is an actinic radiation-curing type ink composition comprising (Component A) a monofunctional radically polymerizable monomer and (Component B) a polyfunctional acrylate oligomer having a glass transition temperature of no greater than 20° C. and having an acrylate equivalent of at least 300 g/eq, Component A comprising (Component A-1) an N-vinyl compound and (Component A-2) an acrylamide derivative, Component A having a content of at least 70 mass % of the entire ink composition, and Component A-1 having a content of at least 18 mass % of the entire ink composition.

Abstract: To provide an inkjet ink composition that has excellent discharge stability and gives an ink image film having excellent substrate adhesion and film hardness, and an inkjet recording method employing the inkjet ink composition. An inkjet ink composition comprises (Component A) a dendritic polymer compound having a weight-average molecular weight of 3,000 to 100,000 and having a constituent repeating unit represented by Formula (I); (Component B) a polymerization initiator; and (Component C) a radically polymerizable compound. (In Formula (I), R1 and R2 independently denote a hydrogen atom or an alkyl group having 1 to 6 carbons, R3 denotes an alkyl group having 1 to 12 carbons, and R2 and R3 may be bonded to form a ring structure.

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 inkjet printer contains an aqueous inkjet ink exhibiting good jetting reliability and ink storage stability, including: a) water; b) colored pigment exhibiting a median volume weighted 50th percentile particle size of less than 0.11 microns; c) from 0.1% to 4% by weight of a compound I represented by the following Structure (I): d) and a polyurethane latex binder.

Abstract: An ink composition for ink jet textile printing at least includes a disperse dye and a solvent represented by the following Formula (1): (in Formula (1), R1 denotes an alkyl group having 1 to 4 carbon atoms). The solvent represented by the Formula (1) has an HLB value of 10.5 or more and 20.0 or less.

Abstract: An ink jet recording apparatus has a first discharge port array in which discharge ports of a plurality of nozzles which discharge an ink composition containing an inorganic pigment are disposed side by side, a second discharge port array in which discharge ports of a plurality of nozzles which discharge an ink composition containing a coloring material other than the inorganic pigment are disposed side by side, a nozzle plate having the first discharge port array and the second discharge port array, a liquid repellent film provided on the nozzle plate, a wiping member which wipes the surface of the nozzle plate and has absorbability of the ink composition, in which, in a series of operations in which the surface of the nozzle plate is wiped by the wiping member, the second discharge port array is wiped in priority to the first discharge port array.

Abstract: An ink for inkjet is provided for printing, comprising a self-dispersed pigment colorant and certain hydroxyl terminated polyurethanes derived from polyether diols which enhances fastness of the print towards highlighter and finger smudge without compromising jetting performance and storage stability of the ink.

Abstract: To provide a recording ink which contains at least a water-dispersible colorant, a water-dispersible resin, a wetting agent, a surfactant and water, wherein the content of the wetting agent in the recording ink is in the range of from 20% by mass to 35% by mass, the total solid content of the water-dispersible colorant and the water-dispersible resin in the recording ink is in the range of from 12% by mass to 40% by mass, the water-dispersible resin contains fluorine resin particulates, and the ratio A:B, where A is the solid content of the water-dispersible resin in the recording ink and B is the solid content of a pigment contained in the water-dispersible colorant in the recording ink, is in the range of 0.5 to 8.

Abstract: An ink containing a plurality of coloring materials having different hues, wherein the bronze value B, which is calculated from tristimulus values of reflected light, of illumination in the direction of an angle of 45 degrees to a normal to the image, in the direction of specular reflection and tristimulus values of illumination light under the same condition of the illumination by using Formula 1, with respect to a predetermined recorded image recorded by the above-described ink is 2.0 or less.

Abstract: The present disclosure is drawn to a nanoparticle containing overcoat composition for use in ink jet printing. The composition can include a liquid vehicle and a composite latex particulate. The composite latex particulate can include inorganic nanoparticles at least partially encapsulated by a polymer. The inorganic nanoparticles can be silica, titania, alumina, zinc oxide, silicates, oxides of indium and tin, and combinations thereof. The inorganic nanoparticles can comprise from about 1 wt % to about 20 wt % of the composite latex particulate. The overcoat composition can be used to improve the properties of ink-jetted images.

Abstract: An optically polymerizable inkjet ink including an optically polymerizable monomer having a Stimulation Index (SI) of less than 3 in a skin sensitization test as measured by Local Lymph Node Assay (LLNA), a molecule cleavage type optical polymerization initiator, a hydrogen-extracting type optical polymerization initiator, and an amine compound serving as a polymerization accelerator.

Abstract: An ink set includes a first ink and a second ink, where each of the inks has a conductivity that is less than 200 pS/cm. The first ink includes a first pigment of a first color; a carrier fluid; and a concentration of a dispersant. The second ink includes a second pigment of a second color that is different from the first color; the same carrier fluid as the first ink; and substantially the same concentration of the dispersant as the first ink.

Abstract: An inkjet ink including water, a pigment, a polymer, and a hydrazine compound. The polymer does not include an anionic unit and includes a first unit having a carbonyl group capable of reacting with a hydrazino group, and a second unit having at least one of an amino group, a dimethylamino group, and a diethylamino group. The content of the first unit is from 40% to 90% by weight based on the weight of the polymer, and the inkjet ink has a pH of not less than 9.

Abstract: A pigment dispersion containing a metal pigment, wherein the metal pigment contains plate-like particles, and in the case where the longitudinal diameter on the planar surface of the plate-like particle is X, the lateral diameter is Y, and the thickness is Z, the 50% average particle diameter R50 of a corresponding circle determined from the surface area in the X-Y plane of the plate-like particle is between 0.5 and 3 ?m, and the condition R50/Z>5 is satisfied.

Abstract: Methods and/or systems for printing or otherwise evincing temporary indicia on media with disappearing inks are described along with suitable disappearing ink formulations and media constructions for executing the same. In particular embodiments, the methods and/or systems described employ a plurality of disappearing inks with different disappearing rates. In one embodiment, a barrier layer that is selectively used to cover a major surface of the media is employed to substantially block or otherwise regulate a rate of phase transitions (e.g., evaporation and/or sublimation) experienced by ink borne by the media.

Abstract: An ink jet ink includes a pigment and a polyurethane polymer having units derived from a polyisocyanate, a polyol, and a diol having an acid group, and in the ink jet ink described above, an acid value of the polyurethane polymer is 20 mgKOH/g or more and 100 mgKOH/g or less, the unit derived from the polyisocyanate includes a unit derived from a compound represented by the following general formula (I), and the proportion of the unit derived from the compound represented by the general formula (I) in the unit derived from the polyisocyanate is 90 percent by mole or less.

Abstract: The invention provides an ink composition including: (a) a polymer including a repeating unit (a1) having a group represented by the following Formula (1) and a repeating unit (a2) having a hydrophilic group; (b) a radical polymerizable compound; (c) water; and (d) a colorant; wherein, in Formula (1), each of Ra and Rb independently represents an alkyl group having from 1 to 4 carbon atoms; Ra and Rb may be bound to each other to form a 4- to 6-membered alicyclic structure; and * represents a bonding site.

Abstract: An ink composition having excellent storage stability and curing properties after an image formation and an image forming method using the ink composition are provided. An ink composition including (A) a polymerizable compound represented by the following general formula (1) and (B) a polymerization initiator and an image forming method using the ink composition. In the general formula (1), R1 represents a hydrogen atom or a methyl group. R2 represents a liner or branched alkylene group having 2 to 4 carbon atoms. However, in R2, it is not possible to have a structure in which an oxygen atom and a nitrogen atom which are bonded to both ends of R2 are bonded to the same carbon atom of R2. R3 represents a divalent linking group. k represents 2 or 3. x, y and z each independently represent an integer of 0 to 6 and x+y+z satisfies 0 to 18.

Abstract: A water-based ink of the present invention includes water, a plurality of different water-soluble organic solvents, and a water-insoluble coloring material, wherein the water-soluble organic solvents consist of a good solvent to the water-insoluble coloring material and a poor solvent to the water-insoluble coloring material, and the total amount (% by mass) of the good solvents in the ink is represented by A and the total amount (% by mass) of the poor solvent in the ink is represented by B, the ratio of A to B ranges from 10:5 to 10:30 both inclusive, and when the respective Ka values of the above water-soluble organic solvents are determined by the Bristow method and compared with each other, a water-soluble organic solvent having the largest Ka value is the poor solvent. The pigment ink has a sufficiently large area factor even with a small amount of ink.

Abstract: An image forming method includes discharging an inkjet ink including a water-dispersible colorant, a wetter, a surfactant, a penetrant water-dispersible polyurethane resin having a median diameter of from 0.01 to 0.10 ?m water and at least one of a polyethylene wax and a paraffin wax on the surface of the recording medium on which the inkjet ink is discharged.

Abstract: An inkjet recording method is performed using an inkjet recording device including a recording head provided with a nozzle, a pressure chamber, a pressure generator and a driving signal generator, the method satisfying the following requirements (1) and (2): (1) it is required to use aqueous ink having a dynamic surface tension larger by 10 mN/m or more than a static surface tension when the surface life measured at 25° C. by a maximum foaming pressure method is 15 ms and a dynamic surface tension larger by 5 mN/m or more than a static surface tension when the surface life measured by a maximum foaming pressure method is 1500 ms and (2) it is required that the signals have a drawing pulse in one print period and a meniscus of the aqueous ink is drawn into the nozzle in two stages by the drawing pulse.

Abstract: An ink set includes a metallic ink composition containing a metal pigment and at least one curable ink composition selected from the group consisting of a chromatic ink composition, a black ink composition, and a white ink composition.

Abstract: An apparatus for controlling application of a substance to a substrate involves the use of a gating agent that blocks the substance from or attracts the substance to the substrate. The apparatus may utilize ink jet technology to apply the gating agent directly to the substrate or to an intermediate surface. The gating agent includes a nonionic surfactant, and water. The gating agent does not contain a discernable amount of dye, pigment or other colorant agent.

Abstract: An ink set is provided which includes a first ink containing a first pigment, water, and a glycol ether having an HLB value, measured by Davies method, in the range of 4.2 to 8.0, and a second ink substantially not containing the glycol ether. The second ink contains a second pigment and water.

Abstract: A printing method is provided, wherein the printing method including: printing an ink, having a total surface free energy ? calculated from the Kaelble-Uy theoretical formula of 25 to 30 mN/m, and a dispersive component ratio ?dr represented by a formula (1) shown below of 0.55 to 0.75, onto a recording medium, and transporting the recording medium using a transport member that opposes at least a printed surface of the printed recording medium, wherein the transport member has a total surface free energy ? calculated from the Kaelble-Uy theoretical formula of 20 mN/m or less, and a dispersive component ratio ?dr represented by the formula (1) shown below of 0.75 to 1.00: ?dr=?d/? (1), wherein ?dr represents the dispersive component ratio, ?d represents a surface free energy of as dispersive component, and ? represents the total surface free energy.

Abstract: The present invention provides aqueous dispersions comprising a pigment (B) at least partially enveloped by polyurethane (A) and further comprising at least one polymerization inhibitor (C), said polyurethane (A) being obtainable by reaction of (a) 15% to 70% by weight of di- or polyisocyanate comprising on average from 1 to 10 allophanate groups and on average from 1 to 10 C—C double bonds per molecule, and optionally (b) 0% to 60% by weight of further di- or polyisocyanate, with (c) 5% to 50% by weight of compound having at least two isocyanate-reactive groups, weight % ages being based on total polyurethane (A).

Abstract: To provide an image forming method, which contains: treating a surface of a recording medium with acid, an oxazoline group-containing polymer, and adipic acid dihydrazide.