Abstract: Provided is toner which has good low-temperature fixability, shelf stability and hot offset resistance, and which suppresses a decrease in glossiness of an image. The toner comprising colored resin particles containing a binder resin, a colorant, a softening agent and a charge control agent, and an external additive, wherein a glass transition temperature (Tg) specified from a temperature dependence curve of a loss tangent (tan ?) obtained by dynamic viscoelastic measurement of the toner, is 50° C. or more and less than 90° C.; the loss tangent (tan ?) at the glass transition temperature (Tg) is 1.70 or less; in a temperature range of 90° C. or more and 160° C. or less, a lowest temperature (Ta) with a loss tangent of 1.50 is more than 95° C. and less than 145° C.; and a storage elastic modulus (G?) at the lowest temperature (Ta) is less than 56000 Pa.

Abstract: A magnetic toner includes toner particles. The toner particles each include a toner mother particle. The toner mother particle includes a polyester resin domain, a vinyl resin domain, and a magnetic powder. A vinyl resin constituting the vinyl resin domain includes a repeating unit having a non-ring-opened oxazoline group. An area rate of an area in which the vinyl resin domain is exposed in a surface area of the toner mother particle is at least 0.02% and no greater than 1.00%.

Abstract: The invention relates to the use of a mineral having perovskite structure in vinyl aromatic polymer foam, i) for decreasing the thermal conductivity, ii) for increasing the mechanical properties (namely compressive strength and bending strength), or iii) for improving the self-extinguishing properties of the foam. The polymer foam further comprises one or more athermanous additives selected from a) powder inorganic additive selected from powders of silica and calcium phosphate, b) powder carbonaceous additive selected from powders of graphite, carbon black, petroleum coke, graphitized carbon black, graphite oxides, and graphene, and c) powder geopolymer and powder geopolymer composite.

Abstract: A method for producing a toner, including aggregating and coalescing resin particles and colorant particles in an aqueous medium. The resin particles contain, in the same or different particles, an amorphous polyester-based resin which is a polycondensate of an alcohol component containing an aromatic alcohol and a carboxylic acid component, and a crystalline polyester resin. The colorant particles contain a colorant and an addition polymer of a raw material monomer containing an addition-polymerizing monomer having an aromatic group. A ratio by mass of the colorant to the addition polymer in the colorant particles is 50/50 or more and 95/5 or less.

Abstract: Herein is described a liquid electrophotographic ink composition including a carrier liquid and a resin including an acid copolymer and an acrylate copolymer, wherein the acrylate copolymer includes at least about 30 wt. % of the alkyl (meth)acrylate monomer.

Abstract: A toner is provided, which has a toner particle that contains a binder resin, and organosilicon polymer particle on a surface of the toner particle. A methanol concentration a (vol %) of the organosilicon polymer particle in a wettability test and a methanol concentration b (vol %) of the toner particle in a wettability test satisfy Expression (I) below: |a?b|?25??(I), and an adhesion index of the organosilicon polymer particle on a polycarbonate film, calculated on the basis of Expression (II) below, is not more than 3.5: Adhesion index=area ratio c of the organosilicon polymer particle having migrated to the polycarbonate film/coverage ratio d of the organosilicon polymer particle on the surface of the toner particle×100??(II).

Abstract: The toner for developing electrostatic images, comprising: colored resin particles comprising a binder resin, a colorant and a release agent, and an external additive. The colored resin particles further comprise a styrene-based thermoplastic elastomer. The styrene-based thermoplastic elastomer comprises an isoprene unit. A content of a fatty acid ester compound having a number average molecular weight (Mn) of 500 or more and less than 2,000 as the release agent, is from 2 parts by mass to 20 parts by mass with respect to 100 parts by mass of the binder resin.

Abstract: A toner having: a toner particle containing a binder resin including a first resin that is a crystalline resin and a second resin that is an amorphous resin; and a fine particle on a surface of the toner particle, wherein the first resin contains a specific ratio of a specific monomer unit, an acid value of the first resin and an acid value of the second resin arc within specific ranges, a domain-matrix structure formed of a matrix containing the first resin and domains containing the second resin appears in cross -sectional observation of the toner, and the fine particle has on the surface a compound containing nitrogen atoms bound or adsorbed thereon.

Abstract: A composition comprising an acid and/or anhydride grafted ethylene/alpha-olefin interpolymer that comprises the following properties: A) number of grafts per polymer chain?1.80, and B) melt viscosity (at 177° C.)?50,000 mPa·s.

Abstract: The present invention relates to a printing method for transferring printing substance from an ink carrier to a substrate, in which the printing substance undergoes a change in volume and/or position with the aid of an energy-emitting device that emits energy during a process time in the form of electromagnetic waves wherein the printing substance comprises a high molecular weight binder. In addition, the present invention describes a printing substance for carrying out the method and the use thereof.

Abstract: A toner containing a toner particle that contains a binder resin and a crystalline material, wherein, in measurement of powder dynamic viscoelasticity of the toner, when T(A)° C. is taken as an onset temperature for a storage elastic modulus E? obtained at a ramp rate of 20° C./min, EA?(100) Pa is taken as a storage elastic modulus at 100° C. obtained at a ramp rate of 20° C./min, and T(B)° C. is taken as an onset temperature for a storage elastic modulus E? obtained at a ramp rate of 5° C./min, T(A)?T(B) is 3.0° C. or less, T(A) is from 45.0° C. to 70.0° C., and EA?(100) is from 4.0×109 Pa to 6.5×109 Pa.

Abstract: A toner including toner particles comprising at least one resin, in combination with an optional colorant, and an optional wax; and a copolymer toner additive on at least a portion of an external surface of the toner particles, the copolymer toner additive comprising a first monomer having a high carbon to oxygen ratio of from about 3 to about 8; and a second monomer comprising two or more vinyl groups, wherein the second monomer is present in the copolymer in an amount of from greater than about 8 percent by weight to about 60 percent by weight, based on the weight of the copolymer; wherein the copolymer toner additive has a volume average particle diameter of from about 20 nanometers to less than about 70 nanometers. An emulsion aggregation toner process including the copolymer as a toner surface additive.

Abstract: A toner including toner particles, each toner particle including a toner base particle, and inorganic particles, wherein the inorganic particles include particles of a fluorine-containing aluminium compound, and a liberation ratio of the inorganic particles is 10% or greater but 60% or less.

Abstract: Provided is a two-component developer has a toner including a toner particle including a binder resin, and a magnetic carrier, wherein the binder resin includes a polymer A having a first monomer unit derived from a first polymerizable monomer, and a second monomer unit derived from a second polymerizable monomer different from the first polymerizable monomer, the first polymerizable monomer is a specific (meth)acrylic acid ester, a content and an SP value of the first and second monomer units in the polymer A fall within respective specific ranges, the magnetic carrier has a magnetic core and a coating resin of the surface of the magnetic core, the coating resin includes a polymer B having monomer units (a) and (b), each SP value of the monomer units (a) and (b) is a specific value.

Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.

Abstract: An electrostatic charge image developing toner includes a polar group-containing olefin resin that is a polymer of a composition containing at least one nonpolar monomer unit (X) selected from the group consisting of ethylene and ?-olefin having 3 to 10 carbon atoms, a polar monomer unit (Y) having at least one of a maleic acid group and a maleic anhydride group, and a monomer unit (Z) having a polymerizability to at least one of the nonpolar monomer unit (X) and the polar monomer unit (Y), in which an acid value of the toner is 10 mgKOH/g to 60 mgKOH/g.

Abstract: An image forming apparatus includes an image holding member; a charging unit; an electrostatic image forming unit; a developing unit that includes an electrostatic image developer that includes a toner; a transfer unit; and a fixing unit that fixes the toner image transferred on the surface of the recording medium to the recording medium. The fixing unit includes a fixing belt arranged to contact with the toner image transferred on the surface of the recording medium, a rotatable body arranged to be in contact with an outer peripheral surface of the fixing belt so as to form a contact region between the rotatable body and the fixing belt, the rotatable body transporting the recording medium in the contact region by rotating together with the fixing belt, and a heat source that heats the contact region formed between the fixing belt and the rotatable body.

Abstract: A toner having a toner particle including a binder resin and a wax, wherein the wax includes a specific diester compound; a proportion As of an area occupied by the wax in a region from a surface of the toner particle to 0.5 ?m is 15.0% or less; wax domains are observed in the cross section of the toner particle, and an average number of the domains per cross section of one toner particle is from 10 to 2000; when a mass concentration of a polyvalent metal element in the toner particle determined by fluorescent X-ray analysis is denoted by Mi (ppm), Mi is from 3.5 ppm to 1100 ppm; and when a mass concentration of a polyvalent metal element in the toner particle determined by X-ray photoelectron spectroscopy is denoted by Ms (ppm), Mi>Ms.

Abstract: An image forming apparatus includes an image holding member, a charging unit that charges a surface of the image holding member, an electrostatic charge image forming unit that forms an electrostatic charge image on the charged surface of the image holding member, a developing unit that includes an electrostatic charge image developing toner and that develops the electrostatic charge image on the surface of the image holding member with the electrostatic chare image developing toner to form a toner image, an intermediate transfer body that has a circumferential surface having a plurality of grooves and an average in-plane roughness ranging from 10 nm to 30 nm, a first transfer unit that first transfers the toner image formed on the surface of the image holding member to a surface of the intermediate transfer body, and a second transfer unit that second transfers the toner image transferred to the surface of the intermediate transfer body to a recording medium, wherein the electrostatic charge image developing

Abstract: Provided is a heat-sensitive layer for a lithium ion secondary battery that can efficiently block rising temperature during abnormal heating by increasing battery internal resistance and thereby reducing current. The heat-sensitive layer for a lithium ion secondary battery is formed from a heat-sensitive layer composition containing particles in each of which a second component is substantially partially disposed at the outside of a particle formed from a first component. The heat-sensitive layer composition has a storage modulus at 60° C. of 10 kPa or more and a storage modulus at 150° C. of 1 kPa or less.

Abstract: An electrostatic charge image developing toner includes: a toner particle that contains a releasing agent, that has an exposed portion in which the releasing agent is exposed on a surface, and in which a proportion of the exposed portion occupying a surface, which is obtained by X-ray photoelectron spectroscopic analysis is 1 atom % or more and 20 atom % or less; and a strontium titanate particle that is externally added to the toner particle, that is doped with a metal element other than titanium and strontium, and in which an average primary particle diameter is 10 nm or more and 100 nm or less.

Abstract: A pressure-printed material preparing apparatus includes an attachment unit that attaches, powder which exhibits adhesiveness when pressure is applied, to a surface to be bonded of a recording medium; a fixation unit that applies pressure to the recording medium to which the powder is attached to fix the powder to the recording medium as an adhesive layer; a folding unit that folds the recording medium of which the adhesive layer is formed on the surface to be bonded, such that two portions of the surface to be bonded are opposed to each other; and an application unit that applies pressure to the recording medium in which the surfaces to be bonded are opposed to each other, to thereby bond the adhesive layer on one surface and the adhesive layer on the other surface.

Abstract: There is provided a toner for developing electrostatic images, including an external additive and colored resin particles containing a binder resin, a colorant and softening agents. The colored resin particles contain a monoester compound A represented by formula (1) and a monoester compound B represented by formula (2) as softening agents. A content of the monoester compound A is in the range from 95 to 99% by mass, a content of the monoester compound B is in the range from 1 to 5% by mass, and a content of the softening agents is in the range from 10 to 30 parts by mass, with respect to 100 parts by mass of the binder resin. Formula (1) is R1—COO—R2. Formula (2) is R3—COO—R4.

Abstract: A positively chargeable toner includes toner particles. Each of the toner particles includes a composite core and a shell layer covering a surface of the composite core. Each of the composite cores is a composite of a toner core containing a binder resin and a colorant layer disposed over a surface of the toner core. The colorant layers contain carbon black. The colorant layers have a thickness of at least 200 nm and no greater than 500 nm. The shell layers include a repeating unit having a non-ring-opened oxazoline group. An amount of the non-ring-opened oxazoline group contained in 1 g of the positively chargeable toner as measured by gas chromatography-mass spectrometry is at least 500 ?mol and no greater than 1,000 ?mol.

Abstract: Provided is a toner having: a toner particle including a binder resin and a wax A, wherein the binder resin includes at least 50% by mass of a styrene acrylic copolymer in the binder resin, the melting point of the wax A is from 60.0° C. to 100.0° C., the wax A is compatible at 100° C. in an amount of at least 15.0 parts by mass with 100 parts by mass of a styrene-butyl acrylate copolymer, in DSC of the toner, where a peak temperature of a maximum exothermic peak derived from the wax A when cooling from 150° C. to 0° C. is performed at 1.0° C./min is denoted by Tc(1), and a peak temperature of a maximum exothermic peak derived from the wax A when cooling from 150° C. to 0° C. is performed at 20.0° C./min is denoted by Tc(20), 0.0° C.?Tc(1)-Tc(20)?7.0° C. is satisfied.

Abstract: A toner comprising: a toner particle that contains a binder resin and a wax, wherein the binder resin contains a styrene-acrylic copolymer, the content of the styrene-acrylic copolymer in the binder resin is at least 50 mass %, the wax contains a wax A, at least 15.0 mass parts of the wax A compatibilizes at 100° C. with 100 mass parts of a specific styrene—butyl acrylate copolymer, and in a cross section of the toner particle observed using a scanning transmission electron microscope, domains of the wax are present, the average number of the domains is from 20 to 2,000, and using r1 for the average major diameter of the domains and r2 for the average minor diameter of the domains, r1 is from 0.03 ?m to 1.00 ?m, and the ratio of r1 to r2 is from 1.0 to 3.0.

Abstract: Toner particles each contain a binder resin and a releasing agent. The releasing agent includes an ester mixture. The ester mixture includes an ester and a fatty acid. The ester includes at least one monoester. The monoester is a dehydration condensation product of a monovalent linear saturated carboxylic acid and a monovalent linear saturated alcohol. The fatty acid includes at least one monovalent linear saturated carboxylic acid. The fatty acid includes a monovalent linear saturated carboxylic acid having a carbon number of at least 14 and no greater than 24 but does not include a monovalent linear saturated carboxylic acid having a carbon number of less than 14 or a monovalent linear saturated carboxylic acid having a carbon number of greater than 24. The fatty acid has a melting point of 60° C. to 80° C. The fatty acid accounts for 5% by mass to 20% by mass of the ester mixture.

Abstract: The disclosure concerns an electrostatic latent image developer including: a toner having toner base particles and an external additive; and a carrier, wherein the external additive contains silicone oil-treated silica and titanium oxide, Net intensity of titanium (Ti) in the toner to be measured by X-ray fluorescence analysis is 0.5 to 5 kcps, the carrier has a resin coating layer coating core material particles, and the resin coating layer has a constituent unit formed from an alicyclic (meth)acrylic acid ester.

Abstract: An image forming apparatus includes an image holding member, a charging unit, an electrostatic charge image forming unit, a developing unit, a transfer unit, and a cleaning unit having a cleaning blade that is in contact with the surface of the image holding member to clean the surface of the image holding member, wherein in the cleaning device, a variation in a load applied by the cleaning blade to the image holding member in a slide test is 1.5 gf/mm or less, wherein in the slide test, an image holding member which has a diameter of 30 mm and with which the cleaning blade is in contact at a contact angle of 23° and a pressing pressure of 4.0 gf/mm is rotated 100,000 times at a rotational speed of 175 mm/sec to slide the cleaning blade.

Abstract: A positively chargeable toner includes a plurality of toner particles each including a toner mother particle and an external additive attached to a surface of the toner mother particle. The external additive includes first resin particles each having a surface to which a cationic surfactant is attached and second resin particles each having a surface to which a cationic surfactant is attached. The first resin particles have a hydrophobicity of at least 15% and no greater than 30%. The second resin particles have a hydrophobicity of at least 50% and no greater than 80%. A first resin particle coverage ratio and a second resin particle coverage ratio each are at least 10% and no greater than 30%. Each blocking rate of the first resin particles and the second resin particles is no greater than 30% by mass.

Abstract: The toner has a toner particle that contains a binder resin, a colorant, a release agent, and a crystalline polyester, wherein the release agent contains an ester wax, and the peak top temperature of the maximum endothermic peak of the ester wax as measured with a differential scanning calorimeter is from 65° C. to 85° C., the ester wax satisfies specific conditions and the crystalline polyester satisfies specific conditions, the toner contains from 3.0 parts by mass to 20.0 parts by mass of the crystalline polyester per 100 parts by mass of the binder resin, and the mass ratio of the ester wax to crystalline polyester is from 25/75 to 75/25.

Abstract: A toner comprising a toner particle containing a resin and a colorant, wherein, with respect to a temperature-storage elastic modulus curve obtained by powder dynamic viscoelastic measurement on the toner, (I) the relative minimum values for the variation in the storage elastic modulus E? with respect to temperature T in the temperature range of at least 30° C. and not more than 180° C. have a relative minimum value of equal to or less than ?1.00×107 and the relative minimum value on the lowest temperature side is equal to or less than ?1.00×108; (II) the storage elastic modulus E? (50) of the toner at 50° C. is at least 1.00×109 and not more than 9.00×109; and (III) for a storage elastic modulus E? (120) of the toner at 120° C., E? (50) and E? (120) satisfy 1.50?[E? (50)]/[E? (120)]?3.00.

Abstract: A toner for electrophotography, the toner including an amorphous polyester resin, an addition polymerization-based resin, and wax that is ester wax or carnauba wax, wherein the toner satisfies relationships represented by Formula 1 and Formula 2 below, SPr>SPw>SPd??(Formula 1) |SPr?SPw|>|SPw?SPd|??(Formula 2) where SPr is a value of a solubility parameter of the amorphous polyester resin, SPw is a value of a solubility parameter of the wax, and SPd is a value of a solubility parameter of the addition polymerization-based resin.

Abstract: Toner particles contain a non-crystalline polyester resin. The toner particles further contain 10 parts by mass to 30 parts by mass of a crystalline polyester resin, 30 parts by mass to 50 parts by mass of a styrene-acrylic acid-based resin, and 8 parts by mass to 15 parts by mass of an ester wax relative to 100 parts by mass of the non-crystalline polyester resin. The crystalline polyester resin includes a repeating unit derived from an acrylic acid-based monomer and a repeating unit derived from a styrene-based monomer. The styrene-acrylic acid-based resin includes a repeating unit derived from an acrylic acid-based monomer having an amino group and has an amino group ratio of 40% to 60%. The ester wax in the toner particles has a dispersion diameter of 500 nm to 1,000 nm.

Abstract: A toner comprising a coloring agent, an amorphous polyester, a crystalline polyester, ester wax comprising of multiple ester compounds, each having a carbon number selected from 32 to 54 and, hydrophobic silica having an average primary particle diameter of 8 to 35 nm, wherein when the ion intensity ratio of each ester compound having a different carbon number is expressed as percentage, the content (a) of the ester compound having a carbon number of (Cn) showing the maximum intensity ratio is from 20 to 55% by weight of the entire ester wax, and the sum (d) of the content (b) of the ester compound having a carbon number of (Cn?4) and the content (c) of the ester compound having a carbon number of (Cn?2) satisfies the following formula: 0.619?d/a?0.783.

Abstract: A thermoplastic resin composition including a polylactic acid and organic-inorganic composite particles, wherein the composite particles include an inorganic nanoparticle core and a coating layer formed on the core, wherein the coating layer includes a copolymer, and a molded article made therefrom.

Abstract: A toner for developing electrostatic images includes a binder, a colorant, iron, silicon, and sulfur. The colorant includes a phosphor and a non-fluorescent colorant. The phosphor includes either one or both of a nitride and an oxynitride each including an alkaline-earth metal, silicon, and an activator element. A volume average particle diameter of the phosphor is greater than or equal to about 50 nm and less than or equal to about 400 nm. An internal quantum efficiency of the phosphor at an excitation wavelength of 450 nm is greater than or equal to about 60%.

Abstract: A toner for electrostatic charge image development contains a binder resin and a releasing agent. The binder resin contains an amorphous polyester resin as a main component and a vinyl resin, the vinyl resin contains a constitutional unit derived from a specific monomer. The releasing agent has a melting point of from 65 to 90° C. and contains an ester wax.

Abstract: In a toner containing a binder resin, a pigment, a pigment dispersant, and a fixing assistant, the pigment dispersant has a structure represented by formula (1) or a tautomer thereof and a polymer moiety, the binder resin and the fixing assistant satisfy formula (2), and a hydrophobic parameter HP1 of the pigment dispersant and a hydrophobic parameter HP2 of the fixing assistant satisfy formula (3).

Abstract: Provided is a toner comprising a toner particle containing: a binder resin; a pigment; a resin having an acidic functional group; and a fixing auxiliary agent, wherein the pigment is a pigment having a structure derived from a basic compound, and the binder resin and the fixing auxiliary agent satisfy following Formula (1): (TgA?TgB)?5.0° C.??Formula (1) and given HP1 as a hydrophobic parameter of the resin having an acidic functional group and HP2 as a hydrophobic parameter of the fixing auxiliary agent, the HP1 is at least 0.60, and following Formula (2) is satisfied: |HP1?HP2|?0.30??Formula (2).

Abstract: A toner including a binder resin, wherein a toner extract obtained by drying an extraction liquid obtained through Soxhlet extraction of the toner with tetrahydrofuran (THF) has glass transition temperature Tg in a range of from 35° C. through 55° C., and a moisture-content change rate of the toner extract before and after leaving the toner extract to stand for 3 days in an environment of 40° C. and 70% RH is 0.5% or less, and wherein a specific-surface-area change rate of the toner before and after leaving the toner to stand for 3 days in an environment of 40° C. and 70% RH is in a range of from 15% through 50%.

Abstract: An electrostatic charge image developing toner includes toner particles including an amorphous resin and a crystalline resin, wherein, when the toner particles are subjected to a measurement by differential scanning calorimetry before and after being heated at a temperature of 50° C. and a humidity of 50% RH for a week, a relationship between an endothermic amount x (J/g) derived from the crystalline resin with respect to the toner particles before being heated and an endothermic amount y (J/g) derived from the crystalline resin with respect to the toner particles after being heated satisfies Expression (1): x/y<0.3.

Abstract: Provided is a printing agent including a pigment, a pigment dispersant, water, an organic solvent, and a binder resin, the pigment dispersant being a polymer (A) including an anionic group, the polymer (A) having a solubility in water of 0.1 g/100 ml or less, a number-average molecular weight of 1000 to 6000, and an acid value of 40 to 400 mgKOH/g. Also provided is a printed fabric produced by applying the printing agent on a fabric. The polymer (A) is preferably a polymer represented by General Formula (1) (where A1 represents a residue of an organolithium initiator; A2 represents a polymer block including a monomer having an aromatic ring or a heterocyclic ring; A3 represents a polymer block including an anionic group; n represents an integer of 1 to 5; and B represents an aromatic group or an alkyl group).

Abstract: A solid lubricant is supplied to a surface of an image carrier of an electrophotographic image forming apparatus. The solid lubricant contains a fatty acid metal salt and polypropylene, and the polypropylene has an acid value of 1 mg KOH/g or more. The solid lubricant is a solid substance of a melt mold containing the fatty acid metal salt and the polypropylene.

Abstract: A cold pressure fix toner composition includes at least one crystalline polyester material having a melting point in a range from about 30° C. to about 130° C. and at least one C16 to C80 amorphous organic material having a Tg of from about ?30° C. to about 70° C. A method of cold pressure fix toner application includes providing the cold pressure fix toner composition, disposing the cold pressure fix toner composition on a substrate, and applying pressure to the disposed composition on the substrate under cold pressure fixing conditions. A latex can be formed from the cold pressure fix toner composition.

Abstract: A toner for developing an electrostatic latent image, the toner includes, a toner parent particle containing a binder resin, the binder resin including a crystalline resin and a hybrid resin, the hybrid resin having a main chain and a side chain, either one of or both of the main chain and the side chain including a unit derived from a crystal nucleating agent, and the crystal nucleating agent being one or more compounds selected from the group consisting of arachidyl alcohol, behenyl alcohol, 1-tetracosanol, 1-hexacosanol, octacosanol, palmitic acid, margaric acid, stearic acid, arachidic acid, behenic acid, and lignoceric acid.

Abstract: An image forming apparatus includes a developing unit that contains an electrostatic charge image developer which contains a carrier and an electrostatic charge image developing toner, wherein the toner includes toner particles which contain a polyester resin, which is a polycondensate of a polycarboxylic acid and a polyol, and has a glass transition temperature of 50° C. to 70° C., the polyol includes a polyol not having a bisphenol A structure in a range of 50% by weight to 100% by weight, and a melt viscosity A of the toner at 110° C. after storage for 2 hours under the environment of absolute humidity of 82.7 (g/m3) and a melt viscosity B of the toner at 110° C. after storage for 2 hours under the environment of absolute humidity of 16.5 (g/m3) each are in the ranges specified in the specification.

Abstract: A cold pressure fix toner composition includes at least one C16 to C80 crystalline organic material having a melting point in a range from about 30° C. to about 130° C. and at least one C16 to C80 amorphous organic material having a Tg of from about ?30° C. to about 70° C. A method of cold pressure fix toner application includes providing the cold pressure fix toner composition, disposing the cold pressure fix toner composition on a substrate and applying pressure to the disposed composition on the substrate under cold pressure fixing conditions. The cold pressure fix toner compositions can be formed into latexes.

Abstract: Provided is a toner including toner particles each containing: a binder resin, a crystalline polyester, and a colorant, in which: the colorant includes a compound represented by the following formula (1); and the binder resin and the crystalline polyester satisfy the following formula (2): in the formula (1), R1, R2, and R3 each independently represent a hydrogen atom or an alkyl group having 1 to 5 carbon atoms, and Ar represents an aryl group. ?SP=|SP1?SP2|?0.43??Formula (2).

Abstract: Provided are a method for producing a negatively-chargeable toner that has a narrow particle diameter distribution even when produced by a polymerization method, and a negatively-chargeable toner that is excellent in balance between low-temperature fixability and heat-resistant shelf stability, has fine thin-line reproducibility, and generates little fog, even in high-speed printing. The negatively-chargeable toner includes colored resin particles which contain at least a binder resin, a colorant, a charge control agent and a softening agent, wherein the charge control agent is a copolymer which is obtained by copolymerizing a vinyl aromatic hydrocarbon, a (meth)acrylate and a sulfonic acid group-containing (meth)acrylamide and in which a copolymerization ratio of the sulfonic acid group-containing (meth)acrylamide is 0.8 to 4.0% by mass, and wherein the softening agent is at least one of a monoester compound and a polyglycerol ester compound.