Abstract: There is provided a developer that has excellent positive charging characteristics and charging stability, and which is compatible with high-speed developing. The developer of the invention contains toner particles and an insulating liquid, wherein a fatty acid ester is contained as the insulating liquid, a substance A expressed by the following formula (1) and/or a substance B expressed by the following formula (2) is further contained, and the total percentage in which substance A and substance B are contained is at least 0.1 wt % and no more than 3.0 wt %.

Abstract: Disclosed is an electrostatic ink composition, comprising a single charge director and a charge control agent that counters the build up of negative optical density memory on the intermediate transfer member of a printing apparatus using the electrostatic ink.

Abstract: This invention is related to a liquid developer dispersion for use in a digital printing apparatus comprising a non volatile carrier liquid, a marking particle and a dispersing compounds, wherein the marking particle in the liquid developer dispersion is stabilized during storage and wherein at fusing two phases are formed. The invention is also related to the use of the developer in a digital printing apparatus and to a method for preparing the liquid developer dispersion.

Abstract: A printing method comprising: forming a first image utilizing a liquid toner comprising carrier liquid and pigmented polymer particles having a first color; transferring the first image to an intermediate transfer member; forming at least one additional image utilizing a liquid toner comprising at least one carrier liquid and pigmented polymer particles having a second color, different from the first color; transferring the at least one additional image to the intermediate transfer member overlaid on the first image, to form a composite image on the intermediate transfer member; and further transferring the composite image to a further substrate, wherein said polymer particles in said first liquid toner and in at least one of said additional liquid toners have different compositions, aside from colorants, the differences in composition including at least one of different polymers or blends of polymers, different amounts or types of placticizers, different amounts of solvated liquid and different compositions

Abstract: A liquid developer of the present invention includes a toner particle and an insulating liquid, the toner particle including a resin and a pigment, the resin including a polyester resin, the pigment including a first pigment, a second pigment, and a third pigment, the first pigment being a carbon black, 10 to 25 mass % of the first pigment being included in the toner particle, the second pigment being nigrosine, 3 to 15 mass % of the second pigment being included in the toner particle, the third pigment being at least one organic pigment selected from a group consisting of a phthalocyanine blue pigment, a phthalocyanine green pigment, a carmine-based pigment, a naphthol-based pigment, a quinacridon-based pigment, an azo-based pigment, a benzimidazolone-based pigment, and an isoindoline-based pigment, 5 to 20 mass % of the third pigment being included in the toner particle.

Abstract: A liquid developer contains toner, a carrier liquid in which the toner are dispersed, and a graft copolymer of an acrylic polymer and a polysiloxane.

Abstract: A toner, wherein the toner is obtained by washing a toner particle dispersion liquid which is obtained by adding cellulase to a dispersion slurry, and the dispersion slurry is obtained from a dispersion liquid or an emulsion of a toner material-containing oil phase in an aqueous medium, and wherein the dispersion liquid or the emulsion contains a cellulosic dispersion stabilizing agent.

Abstract: Toner compositions, treated fluoropolymer particles, methods of making treated fluoropolymer particles, and the like, are disclosed.

Abstract: To provide a fixing solution for fixing fine resin particles to a recording medium, the fixing solution including: a diluent which contains water; a foaming agent which allows the fixing solution to be in the form of foam; and plasticizers which soften or swell at least part of the fine resin particles, wherein the plasticizers contain a liquid plasticizer which is liquid at normal temperature and soluble in the diluent, and a solid plasticizer which is solid at normal temperature and soluble in the diluent.

Abstract: A liquid developer is provided. The liquid developer includes a liquid insulator and toner particles. The liquid insulator toner particles include a resin material, a colorant, a substance A, a substance B, and a substance C. The substance A is an acrylic-modified silicone. The substance B is at least one selected from the group consisting a quaternary cationic silicone, an aminophenyl-modified silicone, and a phenyl-modified silicone. The substance C is at least one of a silanol-containing polysiloxane and a fluorine-modified silicone. The average degree of roundness R1 of the toner particles is 0.890 or greater, if the degree of roundness is expressed as L0/L1, where L1 (?m) is a circumference of a profile view of a measured particle and L0 (?m) is the circumference of a perfect circle of a circumference of a profile view corresponding to the profile view of the measured particle.

Abstract: Provided is a liquid developer containing toner particles and an insulating liquid containing an epoxy modified fatty acid alkyl ester.

Abstract: A liquid developer contains a liquid insulator formed of a liquid hydrocarbon, toner particles formed by chemically modifying surfaces of mother toner particles formed of a material containing a rosin-based resin and a polyester resin with a polyalkyleneimine, and a metal soap dissolved in the liquid insulator.

Abstract: A liquid electrophotographic ink is disclosed herein. One example of the liquid electrophotographic ink includes a non-polar carrier liquid; pigmented toner particles; a charge director; and polymer resin encapsulated metal oxide nanoparticles. A method for making the liquid electrophotographic ink is also disclosed herein.

Abstract: A liquid electrophotographic ink is disclosed. The liquid electrophotographic ink includes a carrier liquid, a polymer resin, and a pearlescent pigment particle.

Abstract: A liquid electrophotographic ink concentrate includes non-volatile solids present in an amount ranging from about 20% to about 70% of the ink concentrate, the non-volatile solids including encapsulated pigment particles having a particle size ranging from about 500 nm to about 20 ?m, and a viscosity modifier. The ink concentrate includes a balance of a liquid composition, the liquid composition including a carrier. The concentrate is dispersible in an ink vehicle to form a print-ready liquid electrophotographic ink having the non-volatile solids present in an amount ranging from about 0.5% to 5% of the print-ready liquid electrophotographic ink.

Abstract: A liquid electrophotographic ink concentrate includes non-volatile solids present in an amount ranging from about 20% to about 70% of the ink concentrate, the non-volatile solids including encapsulated pigment particles having a particle size ranging from about 500 nm to about 20 ?m, and a viscosity modifier. The ink concentrate includes a balance of a liquid composition, the liquid composition including a carrier. The concentrate is dispersible in an ink vehicle to form a print-ready liquid electrophotographic ink having the non-volatile solids present in an amount ranging from about 0.5% to 5% of the print-ready liquid electrophotographic ink.

Abstract: A liquid developer containing an electrically insulating carrier fluid and colored particles dispersed in the carrier fluid and a wet-type image forming apparatus using this liquid developer are provided, with the colored particles being pigments and this liquid developer containing at least one selected from a group consisting of styrene elastomer, polyvinyl butyral, cyclic olefin copolymer and cellulose ether. Additionally, a liquid developer containing an electrically insulating carrier fluid, colored particles dispersed in the carrier fluid, and an organic macromolecular compound for fixing the colored particles to a recording medium and a wet-type image forming apparatus using this liquid developer are provided, with the organic macromolecular compound being dissolved in the carrier fluid and the colored particles being pigments.

Abstract: A liquid developer contains a carrier liquid, and toner particles containing a binder resin and a pigment surface-treated with a polyallylamine compound as a colorant.

Abstract: A matte liquid toner suitable for use in a liquid toner printer, comprising a carrier liquid, toner particles comprising a resin and substantially uncolored additive particles of average diameter between 1 and 20 micrometers dispersed in the resin.

Abstract: An object of the present invention is to provide a toner release agent adaptable to making the fixing temperature of the toner low. The above object can be solved by using a release agent for a toner including a hydrophobic organic substance which is liquid at normal temperature and normal pressure and has a relative dielectric constant of 20 or lower and an SP value of lower than 10, and a gelling agent.

Abstract: A liquid toner is disclosed herein. The liquid toner includes a toner composition with latex particles incorporated therein. The toner composition includes charged toner particles incorporated into a non-polar liquid carrier. The latex particles are polymer particles of acrylic monomers, vinylic monomers, or mixtures thereof, and each latex particle has a particle size ranging from about 20 nm to about 5 ?m.

Abstract: The present disclosure is drawn to compositions and methods for a liquid electrophotographic ink printing. The composition comprises a liquid vehicle; ink particles; and a charge director system, comprising i) a primary charge component, ii) a secondary charge component, and iii) an electrical stability additive; such that the charge director system provides the following ink conductivities: a high field conductivity of about 100 pS/cm to about 500 pS/cm, a low field conductivity of about 20 pS/cm to about 200 pS/cm, a direct charge conductivity less than about 30 pS/cm, and a particle conductivity of at least 100 pS/cm. Additionally, the liquid electrophotographic ink can be formulated for printing from a liquid electrophotographic printer.

Abstract: A liquid developer used for wet-type image forming apparatuses includes toner particles and an insulating liquid, the toner particles include a resin, a pigment, and a pigment dispersant, the pigment includes a pigment having an acid group, and the pigment dispersant is a basic polymer dispersant including units derived from ?-caprolactone.

Abstract: The invention relates to single phase solid solutions containing 65 to 98 wt.-% unsubstituted quinacridone, 1 to 34 wt.-% 2,9-dimethylquinacridone and 1 to 10 wt.-% 2,9-dichloroquinacridone, relative to the total weight of the single phase solid solution.

Abstract: A magnetic polymer particle develops a magnetic latent image. The magnetic polymer particle includes a magnetic component, a polymer, and a colorant. The magnetic component is a magnetic particle containing iron having a number average particle diameter of from about 0.2 ?m to about 1.2 ?m. The magnetic particle is contained in one magnetic polymer particle in an amount of from 1 to 10 particles. The number average particle diameter of the magnetic polymer particle is from about 2.0 ?m to about 7.0 ?m.

Abstract: A black toner particle for use in a printing toner, the particle comprising: a polymer: carbon black; and a plurality of different colored pigments; wherein the carbon black and pigments are dispersed in the polymer.

Abstract: An object of the present invention is to provide a carbodiimide type compound having high dispersibility and dispersion stability of pigments, fine resin particles, and pigment-resin composite fine particles particularly in a silicone dispersion medium; a pigment dispersion composition and a pigment-resin composite fine particles-containing dispersion composition preferably usable in a wide range of fields such as inks for solvent ink jet, liquid developers, and the like by using the compound; and a liquid developer using such a pigment dispersion composition and/or pigment-resin composite fine particles-containing dispersion composition. The present invention provides a carbodiimide type compound obtained by introducing a polysiloxane chain by reaction of a functional group of a polysiloxane chain-containing compound having the functional group reactive with a carbodiimide group with a carbodiimide group of a carbodiimide compound having a carbodiimide equivalent weight of 100 to 50000.

Abstract: An liquid developer includes insulating liquid and toner particles dispersed in the insulating liquid. An average particle diameter of the toner particles based on volume is in the range of 0.7 to 3 ?m, a width S of particle size distribution of the toner particles represented by the following formula (I) is 1.4 or less, and the insulating liquid include the unsaturated fatty acid glyceride: S=[D(90)?D(10)]/D(50)??(I), where D(X) represents the particle diameter at the point of X % in which X is the ratio of accumulated volume to the total volume when the volume is accumulated from the small particle diameter in the particle size distribution of the toner particles.

Abstract: A liquid developer is provided. The liquid developer includes a liquid insulator and toner particles. The liquid insulator toner particles include a resin material, a colorant, a substance A, a substance B, and a substance C. The substance A is an acrylic-modified silicone. The substance B is at least one selected from the group consisting a quaternary cationic silicone, an aminophenyl-modified silicone, and a phenyl-modified silicone. The substance C is at least one of a silanol-containing polysiloxane and a fluorine-modified silicone. The average degree of roundness R1 of the toner particles is 0.890 or greater, if the degree of roundness is expressed as L0/L1, where L1 (?m) is a circumference of a profile view of a measured particle and L0 (?m) is the circumference of a perfect circle of a circumference of a profile view corresponding to the profile view of the measured particle.

Abstract: The present invention provides a particle dispersion liquid including (meth)acrylic resin-containing hydrophobic particles, an acetylene glycol surfactant adsorbed to the hydrophobic particles, and water; the particle size, in a state of being swollen due to absorbing water until saturation, of the hydrophobic particles to which the acetylene glycol surfactant has been adsorbed being 1.1 to 2 times as large as the particle size of the hydrophobic particles in a dried state.

Abstract: This present invention relates to a method of preparing a polymerized toner, which comprises the steps of: preparing an aqueous dispersion medium containing calcium phosphate; preparing a monomer mixture including a styrene-based pigment stabilizer having a weight average molecular weight of 2,000 to 200,000, a charge control agent, a pigment, and a monomer for binder resin; dispersing the monomer mixture in the form of droplets in the aqueous dispersion medium; and performing suspension polymerization for the monomer mixture dispersed in the form of droplets, and calcium phosphate is used in an amount of 2 to 6 parts by weight based on 100 parts by weight of the monomer mixture. Also, a polymerized toner produced using this method is provided.

Abstract: The invention relates to a pigment preparation characterized by a content of a) a dioxazine compound of Formula (I) as the basic pigment; and b) a dioxazine compound of the general Formula (II) as a pigment dispersing agent Q-[Y—X]m (II), wherein Q represents an m-valent group of the basic pigment of Formula (I), Y represents —(CR1R2)x—, in which X is 1 to 6, and R and R2 independently of one another represent hydrogen or C1 to C4 alkyl, X represents an imidazole group which is linked via a carbon atom to the Y bridging element, m has a numerical value between 1 and 4; and c) a resin component from the group of abietic acid, dehydroabietic acid, dihydroabietic acid tetrahydroabietic acid, levopimaric acid, dextropimaric acid, isodextropimaric acid, colophony resin, partially hydrogenated colophony resin, resin soaps of the aforementioned acids, and mixtures thereof.

Abstract: Amphiphilic toner which has both hydrophilic groups and lipophilic groups in the molecule, use thereof for an electrophoretic printing process, and method for an electrophoretic printing process using it. The toner is first dispersed in a non-polar carrier liquid, the toner-containing carrier liquid being transported from a charge image carrier by means of a transfer roller to a point of transfer and from there transferred to a substrate. A polar liquid is added before transfer of the toner to the substrate.

Abstract: Metallic particles for electrokinetic or electrostatic deposition, and a method for making such particles, comprising metallic particle bodies, an organic acid film on the particle bodies, and a charge director adhered to the organic acid film.

Abstract: LEP ink includes a carrier and particles dispersed in the carrier. Particles contain polymeric resin and dendritic macromolecule having functional groups. Some dendritic macromolecule functional groups are coupled to some resin functional groups. Other dendritic macromolecule functional groups are not coupled to any component of the resin. Other resin functional groups are not coupled to any component of the dendritic macromolecule. Liquid toner producing methods include forming a paste containing a carrier liquid and a thermoplastic resin having a polymeric backbone and functional groups. The paste is combined with a colorant and an adhesion promoting dendritic macromolecule having functional groups. After combining the paste and dendritic macromolecule, the method includes coupling the dendritic macromolecule functional groups with resin functional groups, encapsulating the colorant in the resin/dendritic macromolecule, and dispersing the encapsulated colorant in the carrier liquid.

Abstract: A method for printing a substrate by liquid developer electrography, the method comprising: (a) developing a latent image with liquid developer comprising toner particles dispersed in a carrier liquid, said toner particles comprising UV-curable additive; (b) transferring the developed image to the substrate; (c) at least partially fixing the image to the substrate; and (d) irradiating the at least partially fixed image with UV radiation to cure the UV-curable additive.

Abstract: Methods of making ink toners for use in electrostatic imaging are disclosed.

Abstract: A black toner formulation includes at least one non-black colorant selected from the group consisting of dyes, pigments, and combinations thereof. The black toner formulation has a total pigment loading of about 2 percent to less than or equal to about 9.5 percent by weight of total weight of the black toner formulation.

Abstract: Novel UV-curable liquid toner compositions, methods for preparing same and imaging processes and apparatus utilizing same are provided. The UV-curable liquid toner compositions include a dispersion of toner particles in a hydrocarbon based liquid carrier and one or more UV-curable component(s) which form a part of the carrier.

Abstract: A liquid developer is provided. The liquid developer comprises an insulation liquid, toner particles dispersed in the insulation liquid, a dispersant dissolved in the insulation liquid; and a charge control agent dissolved in the insulation liquid. The charge control agent is represented by the following chemical formula (I): wherein in the chemical formula (I) R1 represents an alkyl group or alkenyl group having a carbon number in the range of 8 to 22, and R2 represents a hydroxyalkyl group. The liquid developer has both superior dispersibility and a charge characteristic of toner particles. Further, an image forming apparatus is also provided.

Abstract: A liquid developer includes: magnetic polymer particles including a magnetic material containing yttrium iron garnet (YIG), a polymer compound having a carboxylate salt structure, and a colorant; and a dispersion medium in which the magnetic polymer particles are dispersed.

Abstract: To provide a wet developer which is capable of improving fixability, while ensuring a sufficient heat-resistant storage property. The wet developer contains toner particles composed of a colorant and a binder resin, which are dispersed in a non-volatile carrier solution by using a dispersant. As the binder resin, a polyester resin, which has an alcohol component containing a mixture of an ethylene oxide adduct of bisphenol A and a propylene oxide adduct of bisphenol A, with a ratio thereof being 1:19 to 10:10 (weight ratio), is used.

Abstract: A liquid developer includes an insulation liquid containing a fatty acid monoester and toner particles comprised of a resin material. The resin material is characterized in that a weight-average molecular weight Mw of the resin material is in the range of 20,000 to 200,000, and an amount of a component of which molecular weight M is 10,000 or less contained in the resin material is in the range of 5 to 40 wt %. The liquid developer described above is harmless to the environment. Further, the liquid developer also has superior preservability or storage stability and superior fixing characteristics at a low temperature. An image forming apparatus that can suitably use such a liquid developer is also provided.

Abstract: A liquid developer is provided. The liquid developer comprises: an insulation liquid constituted of a modified epoxy compound as a main component thereof; toner particles dispersed in the insulation liquid; and a cation type photopolymerization initiator used for polymerizing the modified epoxy compound. The liquid developer has superior fixing characteristics and is capable of forming an image at a high speed. Further, a method of forming an image is also provided.

Abstract: In order to prevent the occurrence of bleeding in a nip between a photoreceptor and an intermediate transfer body or a nip between the photoreceptor and a sheet, which is a problem in a wet developing method, the present disclosure provides a liquid developer that includes an electrically insulating carrier liquid and colored particles dispersed within the carrier liquid, further contains an organic polymer compound, and has a viscosity of 30 to 400 mPa·s at a measurement temperature of 25° C.

Abstract: The invention relates to solubilizers for metal ions and poorly soluble metal compounds, containing an oxidation product of starch hydrolysate as a solubilizing agent, to a method for solubilizing metal ions and to the use of said solubilizer.

Abstract: A charge adjuvant for promoting charging of toner particles comprising a dielectric carrier liquid; and an organic aluminum salt dissolved in the liquid, said organic aluminum salt being soluble in the carrier liquid at room temperature is disclosed. Also disclosed are solutions of the charge adjuvant with a charge director, a method of producing toner utilizing the charge adjuvant and a liquid toner.

Abstract: A liquid developer includes: an insulating liquid; toner particles constituted by a resin material as a main component; and a dispersing agent expressed by Formula (I): H2N—R—NH—R???(I) (where, R denotes an alkylene group having a carbon number of 2 to 6 and R? denotes an alkyl group having a carbon number of 8 to 24).

Abstract: A liquid developer includes a toner particle mainly composed of a resin material, and a nonvolatile insulating liquid, the resin material including an ethylene copolymer, and the insulating liquid including fatty acid triglyceride.

Abstract: A liquid developer containing an electrically insulating carrier fluid and colored particles dispersed in the carrier fluid and a wet-type image forming apparatus using this liquid developer are provided, with the colored particles being pigments and this liquid developer containing at least one selected from a group consisting of styrene elastomer, polyvinyl butyral, cyclic olefin copolymer and cellulose ether. Additionally, a liquid developer containing an electrically insulating carrier fluid, colored particles dispersed in the carrier fluid, and an organic macromolecular compound for fixing the colored particles to a recording medium and a wet-type image forming apparatus using this liquid developer are provided, with the organic macromolecular compound being dissolved in the carrier fluid and the colored particles being pigments.