Abstract: The present invention provides a toner for electrophotography having a capsule structure including a core and a shell that covers the core, wherein the core contains a colorant, a releasing agent, an amorphous resin, and a block polymer containing a crystalline part and an amorphous part, the weight-average molecular weight of the block polymer is 10,000 or more, the weight-average molecular weight of the resin used in formation of the amorphous part of the block polymer is 1000 to 5000, and the weight-average molecular weight of the resin used in formation of the crystalline part of the block polymer is at least 2 times the weight-average molecular weight of the resin used in formation of the amorphous part of the block polymer, a method of manufacturing the same, a developer for electrophotography including the toner and a carrier, and an image forming method using the developer for electrophotography.

Abstract: Processes for preparing toner compositions used with electrostatographic imaging members. The processes utilize screw extruders to facilitate continuous dispersion and aggregation of toner components, such as color pigments and wax. The continuous dispersion produces the toner components with more control and better product yield. The products produced are also improved in quality.

Abstract: Toner of the present invention includes aggregated particles formed by aggregating at least resin particles, pigment particles, and wax particles in an aqueous medium in the presence of a water-soluble inorganic salt. The wax includes at least one selected from the following: ester wax that has an iodine value of not more than 25, a saponification value of 30 to 300, and an endothermic peak temperature (melting point) of 50° C. to 100° C. based on a DSC method; and wax that is obtained by a reaction of alkyl alcohol having a carbon number of 4 to 30, unsaturated polycarboxylic acid or its anhydride, and synthetic hydrocarbon wax, and has an acid value of 1 to 80 mgKOH/g and an endothermic peak temperature (melted point) of 50° C. to 120° C. based on the DSC method.

Abstract: Single component toners having a core with a first latex having a specific glass transition temperature and molecular weight, further having a shell surrounding the core with a second latex having a specific glass transition temperature and molecular weight, and additives added thereto, and processes for producing the same. In embodiments, the toner is a non-magnetic single component toner produced by emulsion aggregation methods.

Abstract: A method of preparing an electrophotographic toner is disclosed, comprising subjecting polyester resin particles and colored microparticles to coagulation and fusion in an aqueous medium to form toner particles, wherein the colored microparticles comprise a colorant and a crosslinked polyester resin or a nitrogen-containing polycondensate resin.

Abstract: The present invention provides a toner for electrostatic charge development comprising an amorphous polyester resin, a releasing agent, and magnetic metal particles covered with a resin the main component of which is a crystalline polyester resin.

Abstract: A resin particle liquid dispersion for an electrostatic image developing toner comprises: a terminal addition-polymerized polyester having an acid value of from about 5 to about 70 mg·KOH/g, and the terminal addition-polymerized polyester is obtained by a process comprising: polycondensing a polycondensable monomer having a composition comprising the components (a) to (c) described in the specification to obtain a polyester having an addition-polymerizable unsaturated group at a terminal; and addition-polymerizing the addition-polymerizable unsaturated group of the polyester having an addition-polymerizable unsaturated group at a terminal.

Abstract: Toner of the present invention is produced by mixing in an aqueous medium at least a resin particle dispersion in which resin particles are dispersed, a colorant particle dispersion in which colorant particles are dispersed, and a wax particle dispersion in which wax particles are dispersed and heating and aggregating the mixed dispersion. The main component of a surface-active agent used for the resin particle dispersion is a nonionic surface-active agent. The main component of at least one surface-active agent selected from a surface-active agent used for the wax particle dispersion and a surface-active agent used for the colorant particle dispersion is a nonionic surface-active agent. With this configuration, the toner can have a smaller particle size and a sharp particle size distribution without requiring a classification process.

Abstract: A toner is provided including a colorant; a resin composition (A) comprising at least one binder resin and a hydrocarbon wax having a melting point of 70-90° C. in an amount of from 6 to 30% by weight based on total weight of resin composition (A), and having a softening point (T1/2(A)) of from 120 to 150° C.; and a resin composition (B) having a softening point (T1/2 (B)) of from 100 to 130° C., wherein a weight ratio of the resin composition (A) to the resin composition (B) is from 10/90 to 45/55, and the following relationship is satisfied: T1/2(A)?T1/2(B)+3; and the use of the toner in an image forming method, an image forming apparatus, and a process cartridge.

Abstract: Methods are described for rendering toner particles that are capable of being sufficiently and uniformly charged. The particles may be positively chargeable, non-magnetic, single component toner particles. At least one production method includes emulsifying a charge-controlling agent formed of a synthetic resin in an aqueous medium, the charge-controlling agent having been dissolved in or swollen with an organic solvent; removing the organic solvent; mixing with a suspension of toner base particles containing a binder and a colorant; and heating to fix the charge-controlling agent on the surfaces of the toner base particles. According to at least one method, a positively chargeable non-magnetic single component toner can be produced such that the amount of the charge-controlling agent deposited on the surfaces of the toner base particles falls within a range of 0.2 to 3.0 wt. %, with respect to the total weight of the toner.

Abstract: A toner having its surface functionalized with alkaline resins is provided, and processes for producing the same.

Abstract: A toner composition includes toner particles including a polymeric resin, a colorant, a wax, and an optional coagulant, and a coagulant applied as a surface additive to a surface of the toner particles to alter a triboelectric charge of the toner particles.

Abstract: The invention provides a process for the manufacture of a toner which comprises the steps of: a) providing a latex dispersion containing primary resin particles and surfactant; b) providing a colorant dispersion containing primary colorant particles and surfactant; c) optionally providing a wax dispersion containing primary wax particles and surfactant; d) providing at least one carboxy functional compound of Formula (1), which may be in acid, salt and/or complex form: wherein R is a carbocyclic or heterocyclic radical which may be optionally substituted and Z1 is a bond or linker group and wherein the amount of carboxy functional compound of Formula (1) provided is greater than 3% by weight, the amount of carboxy functional compound being calculated according to the following equation: amount ? ? of ? ? carboxy ? ? functional ? ? ? compound ? ? ( % ? ? weight ) = 100 × weight ? ? ? of ? ? carboxy ? ? functional ? ? compound ( weight

Abstract: The present invention is a method of manufacturing ink. The method includes providing a first organic phase of a solvent containing a dissolved polymer, an oil and a pigment. The organic solvent is dispersed in an aqueous phase containing a stabilizer to form an emulsion containing droplets of the organic phase. The solvent is removed from the droplets to form discrete particles having multiple domains of oil and pigment.

Abstract: A toner having a core containing a colorant, a release agent and a binder resin (A), and a shell containing a binder resin (B), the shell overlying the core, wherein the binder resin (A) contains a resin having a polyester skeleton, the binder resin (B) contains a vinyl copolymer resin, and a weight ratio of the shell to the core is from 0.05 to 0.5, and wherein the toner has a volume average particle diameter of from 3 to 8 ?m; a toner manufacturing method of such the toner can be used in an image forming apparatus and in a process cartridge.

Abstract: A toner including a plurality of fine particles includes a core including first latex particles, a wax and a pigment, or a first latex particle-wax complex and a pigment, and a first shell layer including second latex particles and covering at least a portion of the surface of the core, a method of preparing the toner, a method of forming images using the toner, and an image forming device including a toner transferring unit. The toner can have improved fixing and charging properties, preserving properties at a high temperature and high humidity, glossness and anti-offset properties by reducing a domain size of a wax dispersed in the toner and improving dispersibility of the wax.

Abstract: A toner composition including toner particles, wherein the toner particles are prepared by a method in which toner constituents including at least a binder resin and a colorant are kneaded upon application of heat to prepare a toner constituent mixture; the toner constituent mixture is dissolved or swelled in an organic solvent capable of dissolving or swelling at least the binder resin to prepare an oil phase liquid; the oil phase liquid is emulsified in an aqueous liquid to prepare an emulsion; the emulsion is coagulated; and then the coagulated emulsion is dried to prepare the toner particles.

Abstract: There is provided a toner for electrostatic charge image development, which includes a binder resin that includes a non-crystalline polyester resin and a crystalline polyester resin, and a colorant, wherein in a measurement of an acetone-soluble fraction of the toner by gel permeation chromatography, in which W1 represents the total area of an elution curve of the acetone-soluble fraction, F(0-10) represents an eluate corresponding to from the beginning of the elution to 10% elution of W1 over time, and F (80-100) represents an eluate corresponding to from 80% elution to 100% elution of W1 over time, the amount of an aliphatic unsaturated dicarboxylic acid-derived component of the resins contained in the eluate F(0-10) is in the range of from about 0 mol % to about 10 mol % relative to the total amount of the acid-derived components of the resins contained in the eluate F(0-10), and the amount of the aliphatic unsaturated dicarboxylic acid-derived component of the resins contained in the eluate F(80-100) is i

Abstract: A method for producing toner, and a toner composition, which includes polymer binder and a release agent composition that has relatively high viscosity and associated melting characteristics that improve filming resistance and/or fusing performance. The toner may be prepared by a chemical process wherein the toner particles may be grown in an aqueous solution to obtain a desired toner particle size.

Abstract: A toner composition includes toner particles including a polymeric resin, a colorant, a wax, and a optional coagulant.

Abstract: After fine particles containing a binder resin and a coloring agent are agglomerated in a dispersion liquid to form agglomerated particles, an inverting agent which inverts a sign of a zeta potential of the agglomerated particles is added to the dispersion liquid to stabilize the agglomerated particles, and then, the agglomerated particles are fused.

Abstract: A binder resin for an electrostatic image developing toner, obtained by polycondensation reaction of a polycarboxylic acid and a polyol, wherein the polycarboxylic acid comprises at least one of a compound represented by formula (1) and a compound represented by formula (2) in an amount of from 50 to 100 mol %, the polyol comprises a compound represented by formula (3) in an amount of from 50 to 100 mol %, and a content of a catalyst-originated metal element in the resin is 100 ppm or less: R1OOCA1mB1nA1lCOOR1???(1) (wherein A1 is a methylene group, B1 is an aromatic hydrocarbon group, R1 and R1? each is a hydrogen atom or a monovalent hydrocarbon group, 1?m+1?12, and 1?n?3); R2OOCA2pB2qA2rCOOR2???(2) (wherein A2 is a methylene group, B2 is an alicyclic hydrocarbon group, R2 and R2? each is a hydrogen atom or a monovalent hydrocarbon group, 0?p?6, 0?r?6, and 1?q?3); HOXhYjXkOH??(3) (wherein X is an alkylene oxide group, Y is a bisphenol structure group, 1?h+k?10, and 1?j?3).

Abstract: A toner includes binder of amorphous polymer material, such as an amorphous polyester material, and a crystalline polymer material, such as a crystalline polyester material, wherein the amorphous polymer material has an acid number that is greater than an acid number of the crystalline polymer material. Further, the toner may have a minimum fusing temperature of from about 75° C. to about 150° C. and a relative humidity sensitivity of from about 0.5 to about 10. A method of making toner particles is also indicated.

Abstract: The present disclosure relates generally to chemically prepared toner (CPT) that employs a regulated cooling process subsequent to coalescence and fusing. The cooling process may influence the distribution of domain morphology of the components within a toner particle such as controlling release agent domain formation and accompanying migration to the toner particle surface.

Abstract: The present invention relates to a process for producing a toner which includes the steps of emulsifying a resin binder containing a polyester in an aqueous medium to prepare an emulsion of the resin binder and adding a water-soluble nitrogen-containing compound having a molecular weight of 350 or less to the emulsion obtained in the previous step to aggregate emulsified particles contained in the emulsion. According to the present invention, the shape of toner particles can be controlled simply for a short production time by using a resin binder containing a polyester and using substantially no organic solvent, and further a toner having a narrow and sharp particle size distribution can be produced.

Abstract: The present disclosure relates to a process for producing a toner particulate composition from aqueous dispersions containing aggregates of a polymer binder and other toner ingredients. An ionic surfactant may be used to form the dispersion along with an ionic polymer flocculent wherein the ionic polymer flocculent undergoes a molecular conformational change, which may be triggered by pH adjustment, leading to flocculation and particle growth.

Abstract: Emulsion aggregation toners comprising a polyester-wax resin, wherein the polyester-wax resin includes a wax that is chemically incorporated into the main chain of the polyester resin.

Abstract: Toner compositions having reduced odor are provided.

Abstract: In a toner having toner particles which comprise toner base particles containing at least a colorant, a release agent and a polar resin, and an inorganic fine powder, the polar resin is a resin having at least a polyester unit, synthesized in the presence of an aromatic carboxylic acid titanium compound used as a catalyst, and has an acid value of from 3 mgKOH/g to 35 mgKOH/g. The toner base particles are obtained by carrying out granulation in an aqueous medium, and the toner has a weight-average particle diameter of from 4.0 ?m to 10.0 ?m.

Abstract: A method for manufacturing a developing agent includes forming a toner particle by adding an aggregating agent to a dispersion containing fine particles containing a binder resin and a colorant to allow aggregation and melt adhesion to occur, wherein the pH of the dispersion satisfies the formula (1) below, when denoting pH before the addition of the aggregating agent by pH(A), the pH of the dispersion after the addition of the aggregating agent by pH(B), and the pH of the dispersion after the melt adhesion by pH(C): 0.90?pH(C)/pH(A)?0.25 and 1.00?pH(C)/pH(B)?0.30??(1).

Abstract: A method for forming toner particles includes polymerizing monomers to form a latex comprising polymer particles; combining the latex with an unsaturated curable resin to form aggregates containing the polymer particles and the unsaturated curable resin particles; and heating the aggregates to form coalesced particles. A toner composition that may be formed by the process described herein contains toner particles containing: (i) a polymer comprising a photoinitiator, (ii) an unsaturated curable resin and, (iii) a colorant.

Abstract: A toner having charge control agents which impart excellent triboelectric charging characteristics.

Abstract: A toner having a core with at least one resin and at least one colorant, and having physically attached on a surface thereof, an additive package including fluorinated polymer particles, and a method of forming toner particles having surface particles attached thereto, wherein the surface particles include fluorinated polymer particles, and the method includes aggregating a material with at least one resin and at least one colorant to produce toner particles, following aggregation, forming a mixture of the surface particles and the toner particles, and subjecting the mixture to a temperature above the glass transition temperature of the toner particles to coalesce the toner particles, whereby the surface particles become at least partially embedded within the surface of the toner particles.

Abstract: A method for producing toner is described. In the method for producing a toner, a resin liquid is prepared by mixing at least a binder resin made of polyester resin and a colorant with an organic solvent, the resin liquid is dispersed in an aqueous medium to form an emulsion, and the organic solvent is removed from the emulsion to produce a toner. The organic solvent before preparation of the resin liquid contains 5 to 20 parts by weight of water per 100 parts by weight of the organic solvent.

Abstract: The invention provides a color image forming method including charging, developing, transferring and fixing. The fixing includes thermally fixing a toner image to paper by using a heating body and a pressurizing member which is positioned opposite to the heating body via a film-like member. The color toner includes a toner particle containing a crystalline resin and a non-crystalline resin. When the color toner is subjected to dynamic viscoelasticity measurement employing a sine wave vibration method, a minimum value of the relaxation elasticity H in a relaxation spectrum obtained from frequency dispersion characteristics when a measurement frequency measured at 60 and 80° C. is 0.1 to 100 rad/sec and a measurement strain at a frequency of 6.28 rad/sec is 0.1 %, is in a range of about 10 to 900 Pa/cm2. A relaxation time ? corresponding to the minimum value is in a range of about 1 to 10,000 sec.

Abstract: A toner manufacturing method is provided including emulsion-polymerizing monomers including an aromatic vinyl monomer, to prepare a particulate resin dispersion; mixing the particulate resin dispersion and a colorant dispersion including a black metallic material, to prepare an aggregation dispersion including aggregated resin particles including the colorant therein; heating the aggregation dispersion to a temperature of not less than a glass transition temperature of the particulate resin to unite each of the aggregated particles to prepare a toner dispersion; and washing the toner dispersion to obtain the toner; a toner manufactured by the above method, and a developer using the toner.

Abstract: The present invention provides a method of producing a polymerized toner which removes a by-product microparticle generated as a by-product upon polymerization in a by-product microparticle removing step, efficiently obtains a wet colored resin particle which has low moisture content (wet cake) by decreasing clogs caused at filter element in a dewatering step, enhances a drying efficiency (shorten the drying time) in a drying step, has an excellent productivity and a printing ability.

Abstract: An electrophotographic toner includes a latex, a coloring agent, a wax and 3 to 1,000 ppm of each of Si and Fe, wherein a mole ratio of Si to Fe is from 0.1 to 5.

Abstract: A toner for electrophotography includes a polyester-based resin, a colorant, a charge controlling agent, and a releasing agent, wherein the toner does not substantially comprise of an organic tin, and generates about 100 ppm or less of volatile organic compounds at a temperature of about 150 to about 200° C.

Abstract: A binder resin for an electrostatic image developing toner is obtained by a polycondensation reaction of a polycarboxylic acid and a polyol, wherein the polycarboxylic acid includes a compound represented by at least one of formula (1) and formula (2) as defined in the specification in an amount of from about 50 to about 100 mol %; the polyol includes a compound represented by formula (3) as defined in the specification in an amount of from about 10 to about 100 mol %; and a content of a catalyst-originated metal element in the binder resin is about 100 ppm or less R1OOCA1mB1nA1lCOOR1???(1) R2OOCA2pB2qA2rCOOR2???(2) HOXh-Ph-Y-Ph-XkOH ??(3).

Abstract: A process for preparing a toner for electrophotography comprising a resin binder and a colorant, including the steps of (1) forming primary particles containing the resin binder and the colorant in an aqueous medium in the presence of a nonionic surfactant; and (2) aggregating the primary particles, and unifying the aggregated particle; and a toner for electrophotography obtainable by the process defined above, containing a crystalline polyester in an amount of 60% by weight or more in the toner, wherein the toner has a volume-median particle size (D50) of from 1 to 7 ?m. The toner for electrophotography obtained by the present invention can be suitably used in, for example, development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method, or the like.

Abstract: Disclosed is a toner having a core/shell structure and including a hydrophilic resin and a hydrophobic resin, and a manufacturing method thereof.

Abstract: Toner particles, including at least one binder, at least one colorant, and at least one metal surface additive, wherein the at least one metal oxide surface additive is a metal oxide particle covalently bonded with at least one polycondensation polymer.

Abstract: The invention provides a toner for developing electrostatic latent images containing at least a binder resin, a colorant, a releasing agent, and a graft polymer that has been made by graft polymerization of a resin matrix and a macromonomer including at least one group selected from the group consisting of a hydroxyl group, a hydroxyalkyl group, and a pyrolidonyl group, and a production method thereof. The invention further provides an electrostatic latent image developer using the toner, an image forming method using the toner, and an image forming apparatus.

Abstract: Toner compositions provide a resin substantially free of cross linking; a cross linked resin; a wax; a coagulant; and a colorant; wherein the toner composition provides a fused image gloss of about 1 to about 20 gloss units.

Abstract: A toner and a method of producing same. In one embodiment, the method includes the steps of forming an organic phase containing a resin, an organic solvent, a colorant, a charge control agent, and a phase change stabilizer, wherein the organic solvent is characterized in that the resin is soluble in the organic solvent and the organic solvent and water are at least partially miscible; forming an aqueous phase containing water, an anticoagulant, an accelerant, and optionally an auxiliary agent; mixing the aqueous phase with the organic phase to form a solution having resin colloidal microparticles formed and stably dispersed therein, whereby the resin colloidal microparticles aggregate, coalesce and solidify out into resin particles in the solution, meanwhile the organic solvent is removed from the resin particles by the aqueous phase; and curing the resin particles to obtain toner particles having shapes, diameters, and diameter distribution that are controllable.

Abstract: A toner for developing an electrostatic image of the present invention contains toner particles obtained by forming coagulated particles by mixing a resin particle dispersion solution containing dispersed resin particles and a coloring agent dispersion solution containing dispersed coloring agent particles and fusing the coagulated particles by heating them and is characterized in that at least the surfaces of the toner particles have a chemical structure formed by reaction with a compound having a carbodiimido group. The invention also provides a resin particle dispersion solution to be used for the production of toner.

Abstract: A method for developing toner for use in a single component development system, wherein the process includes a) contacting a styrene acrylate polymer binder resin having a weight average molecular weight (Mw) of from about 50 to about 100 Kpse, and a number average molecular weight (Mn) of from about 10 to about 30 Kpse, a wax selected from the group consisting of polypropylene and polyethylene, and at least one colorant to produce a toner blend, b) aggregating the blend by heating at a temperature at or above the glass transition temperature of the styrene acrylate resin to form an aggregated toner core; c) adding a second binder resin to the aggregated toner core to form a shell over said toner core thereby forming a core-shell toner; d) growing said core-shell toner to a desired size; e) coalescing the core-shell toner by heating at a temperature above the glass transition temperature of the second latex; and f) recovering toner particles, wherein the toner particles have an onset glass transition temperat

Abstract: A toner for development of an electrostatic image includes at least a crystalline polyester resin and a colorant. The toner shows a dielectric loss index ?? of 0.1 or less at 0.1 Hz and 500 V at 30° C. and 90% RH.

Abstract: Continuous processes for producing toner compositions are provided utilizing spinning disc reactors, rotating tubular reactors, or combinations thereof.