Abstract: A liquid toner comprising: a carrier liquid; and toner particles dispersed in the carrier liquid, said toner particles comprising: a polymer blend comprising: a first polymer comprising a minor portion of said blend and having a relatively higher chemical reactivity with paper; and a second polymer comprising a major portion of said blend and having a relatively lower or null chemical reactivity with paper.

Abstract: The present invention relates to a composition comprising at least one azo pigment of the formula optionally additional azo pigments and a surfactant, and from 0.1 to 50% by weight of a selected resin. The invention further relates to a process for its preparation, its use for the preparation of dispersions, paint systems, coating materials, color filters, inks, preferably printing inks, as well as color toners comprising the inventive pigment compositions, particularly preferable as liquid inks in the packaging industry, and liquid inks for the packaging industry.

Abstract: A toner for a liquid developer and the like which have low cohesive force and excellent dispersion stability and storage stability and which enable formation of high-quality images and are highly reliable. The toner for a liquid developer comprises an epoxy compound whose epoxy equivalent weight is 1000 or less. An aspect in which the epoxy compound is at least one selected from bisphenol A epoxy resins, novalak epoxy resins, bisphenol F epoxy resins, biphenyl epoxy resins, isocyanate-modified epoxy resins, naphthalene epoxy resins, dicyclo epoxy resins, and brominated epoxy resins, and the like are preferable.

Abstract: A liquid developer electrophotographic apparatus and method for developing one or more successive color images on a previous color image formed on a latent image retaining body, wherein peeling off the previous color image is prevented by establishing a reversible electrophoretic transfer efficiency of toner particles in the previous toner image to be not greater than 60% in the liquid developer for the successive color image while applying an electrical potential difference between the latent image retaining body and a developing electrode for the successive developing step(s). A resin content and composition of the toner particles forming the previous color image may be selected to achieve the reversible electrophoretic transfer efficiency of 60% or less.

Abstract: A liquid ink for developing electrophotography images comprises:

Abstract: A toner or developer for electrostatic images including a carrier liquid and insoluble marking particles. The carrier liquid comprises or includes a polybutene. The polybutene may be present in a range of 20 to 98 percent by weight. The carrier liquid can also includes one or a blend of other carrier liquids selected from aliphatic hydrocarbons, aromatic hydrocarbons, chlorinated solvents, silicone fluids and vegetable oils. The insoluble marking particle is present in the range of 2 to 40 percent by weight of the toner or developer.

Abstract: A recording liquid including a colorant and a carrier liquid including at least one of a liquid paraffin and a linear silicone oil. The recording liquid is an inkjet ink, a printing ink, a marker ink, a stencil ink, an electronic recording ink, a non-aqueous paint, a liquid developer or the like. When the recording liquid is a non-aqueous paint or a liquid developer, the recording ink further includes a resin.

Abstract: The invention relates to water-dilutable binding agents and coating agents with particularly quick drying surfaces. The invention also relates to a method for the production and use thereof. The water-dilutable binding agents are based on polymer dispersions, which are characterized in that they contain at least one poly acid/polyvinylpyrrolidone complex and optionally one or several water-soluble zircon compounds. The inventive binding agents have a quick drying surface and are suitable for use in the production of primers, paints and plasters with quick drying surfaces or quick-acting wash-fastness.

Abstract: This invention relates to a liquid ink for developing electrophotographic images comprising:

Abstract: This invention relates to a phase change developer comprising:

Abstract: The invention relates to a liquid toner and imaging apparatus provided with an imaging surface having a liquid toner image formed thereon on fibrous toner particles and carrier liquid. The fibrous toner particles can be composed of a polymer portion and pigment dispersed therein, where the polymer portion comprises a surface of the fibrous toner particles and is insoluble in the carrier liquid at temperatures below 40° C., so that the polymer portion will not dissolve or solvate in storage. The polymer portion also is solvatable by the carrier liquid only at temperatures above 50° C. The carrier liquid has, as a major component, first liquid hydrocarbon having a first rate of evaporation, and, as a minor component, second liquid hydrocarbon having a second rate of evaporation which, at room temperature, is at least an order of magnitude less than the first rate of evaporation.

Abstract: A liquid developer containing a carrier liquid containing silicone oil, and toner particles dispersed in the carrier liquid and each containing a coloring agent and a resin, the resin contains at least one member selected from the group consisting of the following resins (a)-(g): (a): rosin polymers having a softening point of 50-190° C., a glass transition point of 10-170° C. and a molecular weight of 2,000-40,000 and obtained by reacting (a1) a rosin glycidyl ester, (a2) dicarboxylic acid or dicarboxylic anhydride, (a3) at least one crosslinking agent selected from the group consisting of polyfunctional epoxy compounds, tri- or more polybasic acids or anhydrides thereof tri- or more polyhydric alcohols, and (a4) a dihydric alcohol; (b): vinyl polymers having a ratio of the weight average molecular weight to the number average molecular weight of greater than 4; (c): olefin resins having a melt index of 2.5-700; (d): polyolefins or polyolefin copolymers having an acid value of 0.

Abstract: A liquid toner for electrostatic imaging which includes: an insulating non-polar carrier liquid, at least one charge director and toner particles dispersed in the carrier liquid. The particles include a core material which is unchargeable or weakly chargeable by the at least one charge director, but which is otherwise suitable for use as a toner material and a coating of at least one ionomer component in an amount effective to impart enhanced chargeability to the ordinarily unchargeable or weakly chargeable particles.

Abstract: A liquid developer, a method of manufacturing the same and a method and apparatus for forming an image, which can attain high transfer efficiency and appropriate tolerance to repetitive image formation. The liquid developer includes toner particles dispersed in an electrically non-conductive liquid solvent. Each toner particle has a resin particle, which is non-soluble in the liquid developer, and pigment particles formed on the surface of the resin particle, whereby the pigment particles suppress contact between the resin particles. Preferably the resin particles have a glass transition temperature of not less than room temperature. One example of manufacturing the liquid developer includes a step of milling pigment particles in a resin particles dispersion liquid at a process temperature higher than the glass transition temperature of the resin particles, whereby the pigments are formed on the surface of the resin particles.

Abstract: Polymeric particles of a desired particle size improved with the dispersion state of a pigment contained in the high polymeric particles can be obtained by a production method, which includes solution-polymerizing monomers having polymerizable unsaturated bonds in the presence of ionic particles sulfonic group or carboxyl group on the surface thereof.

Abstract: A liquid recording material containing at least a carrier liquid, a resin, a coloring agent, and a reactive silicone material, an image transfer sheet for use with the liquid recording material, and a method of fixing images, using the liquid recording material, are disclosed.

Abstract: The present invention relates to the use of a CuPc composition consisting essentially of CuPc, e.g., C.I. Pigment Blue 15:3, and a hydroxymethylphthalimido CuPc, as a colorant in electrophotographic toners and developers, powders and powder coating materials, electret materials, inkjet inks, and color filters, wherein the phthalocyanines have a particle morphology with an average length-to-width ratio of more than 2.5:1.

Abstract: A liquid toner includes a carrier liquid, and toner particles including a thermoplastic resin and a metallic colorant dispersed in said thermoplastic resin, the toner particles being dispersed in the carrier liquid. The liquid toner enables formation of printed images having a metallic sheen using a liquid toner imaging process.

Abstract: A liquid developer contains, for example, a nonpolar liquid, thermoplastic resin, optional colorant, and an inorganic filler

Abstract: This invention relates to a toner for developing an electrostatically charged image of a heat roller type copier or printer, the toner consisting essentially of a binder resin, a colorant and a charge control agent, in which the binder resin at least includes a polyolefin resin having a cyclic structure, and a polyolefin resin of a cyclic structure having an intrinsic viscosity (i.v.) of 0.25 dl/g or more, a heat distortion temperature (HDT) by DIN53461-B of 70° C. or higher, and a number average molecular weight of 7,500 or more and a weight average molecular weight of 15,000 or more, as measured by GPC, is contained in a proportion of less than 50% by weight based on the entire binder resin.

Abstract: Disclosed is a liquid toner composition prepared by dispersing toner particles consisting essentially of a colorant and a resin in a carrier liquid, the resultant composition forming an electrorheological fluid.

Abstract: A liquid toner for electrostatic imaging which includes: an insulating non-polar carrier liquid, at least one charge director and toner particles dispersed in the carrier liquid. The particles include a core material which is unchargeable or weakly chargeable by the at least one charge director, but which is otherwise suitable for use as a toner material and a coating of at least one ionomer component in an amount effective to impart enhanced chargeability to the ordinarily unchargeable or weakly chargeable particles.

Abstract: An ink for a liquid electrophotographic color printing system is optimized to reduce the lowering of image density due to wash-off, to obtain a stable over-toned color, and to have a wide reproducible color gamut. The ink includes a plurality of toners for yellow (Y), magenta (M) and cyan (C), each toner being provided in a respective one of a plurality of developing devices, and each toner having a pigment (p) for forming an image having a predetermined color, a binder (b) for binding the pigment on printing paper, a charge controller for imparting electrical properties on the toners, and a stabilizer. A carrier transfers the toners from the developing devices to a photoreceptor belt during development. The blending ratio (b/p) of the binder (b) to the pigment (p) of each toner for yellow (Y), magenta (M) and cyan (C) satisfies the following expressions: b/pyellow(Y)=5±1; b/pmagenta(M)=7±1; and b/pcyan(C)=8±1.

Abstract: A toner particle adapted for use in electrostatic image formation comprising:

Abstract: A metal-containing toner is electrostatically printed on a semiconductor surface. Subsequently, this surface is annealed to achieve certain material modifications selectively at the regions where the toner is applied. If the toner contains a crystallization-catalyst metal, such as, Pd, Ni, Pt, and Cr, and is printed on an amorphous semiconductor film, annealing results in conversion of the printed regions to polycrystalline. If the metal-containing toner is printed on a silicon surface (i.e., amorphous/poly-Si layer or Si wafer) the printed regions are selectively converted to a metal-silicide (with the sufficient amount of metal applied on these regions) upon annealing.

Abstract: A process is provided for producing a colored fine particulate composition by dissolving or dispersing a coloring matter or a coloring matter and charge control agent in a condensation-polymerized resin component and forming the resultant resin composition into fine particles. The coloring matter or the coloring matter and charge control agent are added to a raw material component for the production of the resin component, or to the resin component in a period from initiation to completion of polymerization of the resin component or while the resin component is in a molten state subsequent to the completion of the polymerization, whereby the coloring matter or the coloring matter and charge control agent are dissolved or dispersed in the resulting resin component. A colored composition obtained subsequent to the dissolution or the dispersion is cooled. The colored composition so cooled is then formed into fine particles.

Abstract: An organosol comprising a high molecular weight (co)polymeric steric stabilizer covalently bonded to an insoluble, high molecular weight thermoplastic (co)polymeric core is described which has the ability to form a three dimensional gel of controlled rigidity. The gel provides improved liquid ink or liquid electrophotographic/electrographic toner compositions by increasing sedimentation stability of the colorant, without compromising print quality or ink transfer performance. The gel is formed by manipulating the solubility parameter difference between the stabilizer and the solvent to achieve optimum performance of the dispersion.

Abstract: A method for producing a liquid toner composition includes: melt-mixing a colorant and a thermoplastic resin in an extruder to homogeneously disperse the colorant in the thermoplastic resin to form a colorant/resin mixture; mixing the colorant/resin mixture with a non-polar liquid to form a dispersion; and cold grinding the dispersion to form toner particles of the colorant/resin mixture dispersed in the non-polar liquid, wherein the particles have an average particle size of less than about 20 &mgr;m.

Abstract: A liquid developer comprised of a nonpolar liquid, resin, colorant, and a cyclodextrin charge acceptance component.

Abstract: A reverse charging printing liquid developer comprised of a nonpolar liquid, and dispersed therein a toner comprised of a sulfonated polyester resin and a colorant.

Abstract: In an electrographic toner, containing a plurality of polymer particles (4), each polymer particle has functional groups on its surface, which dissociate into two parts in a carrier liquid (6), with one part of each group remaining firmly attached to the surface, so that the individual polymer particles carry electrostatic charges in the carrier liquid. Such a toner can be used in conjunction with carrier liquids that represent no problems from the point of view of occupational safety and environmental protection. Transfer processes and a developing system for use with this toner are described.

Abstract: A process for the preparation of a liquid developer comprised of thermoplastic resin particles, pigment, a charge additive or adjuvant, and a charge director, which process comprises a supercritical solvent extraction to enable a developer with a high solids content.

Abstract: (1) Electrophotographic liquid developer comprising electrically insulating medium liquid and toner dispersed in the medium liquid, wherein the toner has a melt viscosity (.eta.) in a range from 2.times.10.sup.2 poises to 1.times.10.sup.5 poises at 100.degree. C. in a dry state, and has a glass transition temperature of 20.degree. C. or more.(2) Electrophotographic liquid developer comprising electrically insulating medium liquid and toner dispersed in the medium liquid, wherein the toner contains binder resin exhibiting at least one peak in each of ranges of a molecular weight lower than 5000 and of a molecular weight of 5000 or more when detected by a gel permeation chromatography (GPC).

Abstract: In a liquid toner for use in imaging processes which comprises pigmented polymer particles, at least one charge director and a hydrocarbon liquid toner carrier, the polymer is a blend of at least two distinct polymer components, the blend being characterized in that in a 40% non-volatile mixture with a hydrocarbon liquid toner carrier, it has on a semi-logarithmic viscosity vs. temperature cooling curve, a break-point at a temperature below about 65.degree. C. at a viscosity of between about 3.times.10.sup.5 centipoises and about 5.times.10.sup.6 centipoises. The polymer blend and an electrostatic imaging process (particularly one using an intermediate transfer member) utilizing the above toner are also claimed. Use of such polymer blends enables liquid toner to be applied in such processes at no more than and in some cases less than the customary processing temperatures.

Abstract: This invention is based upon the discovery that the characteristics of toner resins made by emulsion polymerization can be improved by utilizing diacid cycloaliphatic emulsifiers in the synthesis thereof. Toner resins which are made utilizing such diacid cycloaliphatic emulsifiers do not exhibit significant electrical charge effects from the residual level of soap in the resin compared to resins made using standard soaps; such as, rosin acid soaps and fatty acid soaps. They also generally contain a lower level of ash since salts do not need to be used in their coagulation. As a result of the low level of ash, the toner resin made from the diacid soap exhibits excellent resistance to moisture sensitivity and adsorption. This feature gives the toners made from these resins better electrical charge stability compared to resins made from conventional soaps since adsorbed moisture is known to neutralize electrical charges.

Abstract: A process for the preparation of an unsaturated polyester which comprises (i) reacting an organic diol with a cyclic akylene carbonate in the presence of a first catalyst to thereby form a polyalkoxy diol, and (ii) optionally adding thereto a further amount of cyclic alkylene carbonate in the presence of a second catalyst, and (iii) subsequently polycondensing the resulting mixture with a dicarboxylic acid.

Abstract: Toner includes binder resin having an acid value in a range from 10 mgKOH/g to 100 mgKOH/g; and at least one kind of compound selected from among Color Index Pigment Yellow 180 and derivatives thereof. A liquid developer includes the toner and carrier liquid. Toner includes binder resin having a weight average molecular weight (Mw) in a range from 3000 to 10000; and at least one kind of compound selected from among Color Index Pigment Yellow 180 and derivatives thereof. A liquid developer includes the toner and carrier liquid.

Abstract: A magnetic image forming apparatus includes a developer for developing a magnetic latent image. The developer has a liquid ink and particles of a resin to be dispersed in the liquid ink. The particles contain magnetic powder formed of plural parts dispersed in each of the particles of the resin. The apparatus also includes a stirrer for stirring the developer in a storage device. Also, there is a restrictor for limiting an amount of developer to be supplied.

Abstract: A process for the preparation of an unsaturated polyester which comprises (i) reacting an organic diol with a cyclic akylene carbonate in the presence of a first catalyst to thereby form a polyalkoxy diol, and (ii) optionally adding thereto a further amount of cyclic alkylene carbonate in the presence of a second catalyst, and (iii) subsequently polycondensing the resulting mixture with a dicarboxylic acid.

Abstract: A printed film includes a substrate film with a surface polymeric layer that includes a thermoplastic polymer having a melting point of no more than about 130.degree. C. and, on a surface of the film, a printed image in the form of a polymeric film. The substrate film can be printed without chemically and/or oxidatively priming the surface to be printed and exhibits superior retention of the image after undergoing heat treatment.

Abstract: The present invention provides with a black matrix, a phosphor screen, and a method of manufacturing thereof. For a method of manufacturing the black matrix formed on the inner surface of a panel of a color CRT, a photoresist is not used, but a wet electrophotographic method was employed, using graphite for a main component of the black matrix materials, and forming a phosphor screen by a dry electrophotographic method to improve the quality of a color cathode-ray-tube.

Abstract: A liquid toner for use in a liquid developer contains a dispersion medium and toner particles, each of which toner particles contains a coloring agent and a binder agent and is dispersed in the dispersion medium, the toner particles comprising small toner particles with a particle diameter of 0.1 .mu.m or less in an amount of 20 wt. % or less of the total weight of the toner particles, and having an average particle diameter of 0.3 to 5 .mu.m. Using the above-mentioned liquid toner in which the amount of the toner particles is controlled to 5 to 100 wt. % of the total weight of the liquid toner, a latent electrostatic image formed on a photoconductor can be developed to a toner image.

Abstract: The invention provides the following liquid developers (1)-(5). (1) A liquid developer including a carrier liquid having an aniline point of 80.degree. C. to 100.degree. C.; and at least one compound selected from among Color Index Pigment Yellow 180, Color Index Solvent Yellow 162 and derivatives of these. (2) A liquid developer including a carrier liquid having an aniline point of 80.degree. C. to 100.degree. C.; toner; and at least one compound selected from among salicylic acid metal salt and derivatives thereof. (3) A liquid developer including a carrier liquid having an aniline point of 80.degree. C. to 100.degree. C.; toner; and at least one compound selected from among borate-containing compound and derivatives thereof.

Abstract: A liquid developer having a superior sedimentation characteristic and floating characteristic and an image forming apparatus using said liquid developer, wherein said liquid developer comprising toner dispersed in liquid medium and the difference in specific gravity between said toner and said liquid medium is at or lower than a prescribed level.

Abstract: A liquid developer having polymer particles dispersed in a dispersion medium, wherein the polymer particles have a mean volume particle size d.sub.50 of 0.5.about.5.0 .mu.m, and degree of flatness (longest diameter of a single particle/shortest diameter of a single particle) is greater than 1.5 but less than 30.

Abstract: The toner particles of this invention comprise pigment and a resin. The resin comprises a novel polymer formed from ethylenically unsaturated monomers, macromeric moieties that render the resin dispersible in hydrocarbon solvents, and a surface-release promoting moiety. When used for toner particles the polymer further comprises charge directing chelating moieties. The toner particles also include a charge director, preferably a metal cation. The toner particles, when dispersed in a carrier liquid, are useful as liquid toners for electrographic or electrophotographic processes.

Abstract: A method for preparation of a printing plate by an electrophotographic process comprising, in order, a) forming a toner image on an electrophotographic light-sensitive element having a release surface by an electrophotographic process using a liquid developer comprising a dispersion medium having dispersed therein toner grains each containing at least one resin (A) having a glass transition point of from 20.degree. C. to 80.degree. C. or a softening point of from 35.degree. C. to 100.degree. C. and at least one resin (B) having a glass transition point or a softening point at least 2.degree. C. lower than that of the resin (A), b) drying the toner image to remove the dispersion medium thereby causing at least partial adhesion between the toner grains, c) bringing the toner image into contact with an intermediate transfer medium having a surface adhesion force of not less than 3 gram.multidot.force at temperature (T.sub.1) and not more than 40 gram.multidot.force at temperature (T.sub.

Abstract: Low optical density magnetic fluid which is a stable dispersion of fine magnetic particles. A method of forming the stable dispersion which includes providing an ion exchange resin, loading the ion exchange resin with an ion capable of forming a magnetic phase, treating the loaded resin to form magnetic particles and micronizing the resin and magnetic particles in a fluid to form an aqueous stable colloid. The invention provides submicron particles and submicron particles which are dispersed in an aqueous colloid. A method of forming the stable dispersion which includes providing an ion exchange resin, loading the ion exchange resin with an ion, treating the loaded resin to form nanoscale particles. Fluidizing the resin and particles to form an aqueous stable colloid. A method of forming magnetic materials having tunable magnetic properties and the magnetic materials formed thereby.

Abstract: A developer for use in electrophotography for developing latent electrostatic images to visible toner images, includes at least two kinds of toner particles with different shapes selected from the group consisting of spherical toner particles, fibrous toner particles and amorphous toner particles, each toner particle containing a coloring agent and a binder resin. There is provided a liquid developer including a toner which is dispersed in a carrier liquid, in which the toner includes at least two kinds of the above-mentioned toner particles with different shapes. An electrophotographic image formation method using the above-mentioned liquid developer is also provided.

Abstract: The present invention provides a liquid developer for electrophotography comprising: carrier liquid, and toner particles, dispersed in the carrier liquid, formed of binder resin and colorant, wherein said carrier liquid contains acidic dispersion resin and basic dispersion resin which are soluble in said carrier liquid. Further, the present invention provides a liquid developer for electrophotography comprising: carrier liquid, and toner particles, dispersed in the carrier liquid, formed of binder resin and colorant, wherein said liquid developer contains a basic dispersion resin that is soluble in said carrier liquid and has a moisture content of 500.about.20,000 ppm, and has an acidic group on the surface of the toner particle.