Abstract: An electrostatic image developing toner including a toner particle (C), wherein the toner particle (C) has a structure in which a resin particle (A) containing at least a first resin (a) or a coated film (P) containing the first resin (a) is attached to a surface of a resin-containing particle (B) containing a second resin (b), and wherein the resin (b) includes a polyhydroxycarboxylic acid skeleton, and the resin (a) is a polyester resin containing a polybasic acid and a polyhydric alcohol.

Abstract: Toners containing encapsulated crystalline resin have lower minimum fix temperatures without charge degradation.

Abstract: A binder resin for a toner containing a vinyl resin (A), a non-crystalline polyester resin (SN) and a saturated crystalline polyester resin (SC), in which the content of the vinyl resin (A) is equal to or more than 65 mass % and equal to or less than 95 mass %, based on the total content of 100 mass % of (A), (SN) and (SC), (A) is composed of a carboxyl group-containing vinyl resin (C), a glycidyl group-containing vinyl resin (E) and a reaction product of the vinyl resins, the ester group concentration of (SC) is equal to or more than 10.0 mmol/g and equal to or less than 13.5 mmol/g, (SN) is dispersed in an island form in (A) and (SC) is contained in the island phase of (SN), and the metal component (M) containing at least one kind selected from the group consisting of Zn, Ca, Mg, Al and Ba (excluding metal oxide) is contained at least in (SC).

Abstract: The present disclosure provides toners and processes for making said toners. In embodiments, the toners include a fluorescent additive having a fluorescent agent. Toners are colorless when viewed under natural light but when exposed to UV light of a specific wavelength the toners are rendered bright green due to the presence of the fluorescent agent.

Abstract: According to one embodiment, a method of manufacturing a color erasable developing agent including preparing a dispersion containing a fine particle containing a leuco dye and a developer, a fine particle containing a color erasing agent, a toner binder resin fine particle and a medium, aggregating the fine particles in the medium, and heat fusing the aggregate to form a toner particle is provided.

Abstract: A toner includes a resin having an unsaturated double bond, a thiol compound having a bi- or more-functional thiol group, and a polymerization initiator.

Abstract: An electrostatic image developing toner including: toner base particles each including a binder resin and a colorant; and an external additive, wherein the toner base particles each have protrusions on a surface thereof, an average of lengths of long sides of the protrusions is 0.1 ?m or more but less than 0.5 ?m, a standard deviation of the lengths of the long sides of the protrusions is 0.2 or less, a coverage rate of the protrusions on the surface of each toner base particle is 10% to 90%, and the external additive includes an external additive (A) which is fine inorganic particles each containing silicone oil.

Abstract: Environmentally friendly latex particles are provided which include a gelling agent and a pigment encapsulated in an amorphous resin which may be utilized in forming EA super low melt toners. Methods for providing these resins and toners are also provided.

Abstract: A toner for electrostatic image development including: a toner particle containing a polyester resin and a coloring agent; and an uncolored particle containing a polyester resin and not containing a coloring agent, wherein shape factor SF1 of the uncolored particles is 110 or less, and the number of the uncolored particles is 50 or less based on 5,000 toner particles.

Abstract: A toner comprising toner particles containing a binder resin comprising a crystalline polyester resin, a non-crystalline polyester resin and an acryl resin having a cross-link structure, and the acryl resin having a cross-link structure has a cross-link site derived from a crosslinking agent represented by the following formula (1): CH2?CR1—C(?O)O—Z—OC(?O)—CR2?CH2??Formula (1) wherein R1 and R2 are each a hydrogen atom or an alkyl group of 1 to 3 carbon atoms, and Z is a hydrocarbon group of 2 to 90 carbon atoms, provided that the hydrocarbon group may include an ether linkage, an ester linkage, a heterocyclic ring or a substituent.

Abstract: The present disclosure provides toners having a tunable gloss level, electrophotographic apparatus for suing such toners as well as processes for making such toners.

Abstract: An electrostatic charge image developing toner contains a binder resin, a release agent, a black colorant, a methylglycine diacetate, and an aluminum element, the content of the methylglycine diacetate is in the range of from 5 ppm to 500 ppm, and the content of the aluminum element is in the range of from 0.07 atomic % to 0.18 atomic % in total element analysis using fluorescent X-rays.

Abstract: A toner composition including a colorant-polyester polymer having at least one colorant and at least one polyester resin, an optional non-colorant polyester polymer, an optional additional colorant, an optional wax, and an optional additive, where the colorant is covalently linked to some or all of the polyester resin and the polyester resin is obtained by polymerizing a lactone using an enzyme catalyst. Methods for preparing a toner composition including an emulsion aggregation process.

Abstract: An electrostatic image developing toner including: a toner particle containing a binder resin having a polyester resin and a coloring agent; and a non-colored particle containing a polyester but not containing a coloring agent and having a shape factor SF1 of not more than 110, wherein an amount of Sn element contained in the non-colored particles is larger than an amount of Sn element contained in the toner particle.

Abstract: A natural oil-based toner resin for producing toner in developing electrophotographic image comprising a copolymer of unsaturated polyester resins and vinyl monomers, wherein the polyester resins have a molecular weight of 500 to 30000 and obtained from polycondensation between a polycarboxylic acid, a natural oil or derivative thereof and a polyol. The toner resin in emulsion form is mixed with fine suspensions or emulsions of a colorant and a charge control agent; and a flocculating agent is incorporated therein to induce aggregation for forming particles of desired sizes, and subsequently the temperature is suitably raised to cause coalescence to produce raw toner particles of regular shape and smooth surface. The raw toner particles are washed and dried, and treated with suitable additives to produce the finished product of chemically produced toner.

Abstract: Provided is a charge control agent that gives toner a practical level of negative chargeability, is colorless or a light color and can be used in a color toner, has an electrostatic charge from charging of a resin powder, such as the toner used, that is stable against environmental change, and has the characteristics of: excellent temporal stability of charge control characteristics, i.e., storage stability; excellent stability of charge control characteristics when repeatedly used a number of times, i.e., durability; and high stability without containing toxic heavy metals.

Abstract: Disclosed is a toner which enables a stable image density to be obtained, regardless of the service environment, throughout use in durability tests, and which is able to suppress the occurrence of faulty cleaning. The toner contains both toner particles, which include a binder resin and a colorant, and also silica fine particles. The toner has an average circularity of at least 0.950, a static friction coefficient, with respect to a polycarbonate resin substrate, of at least 0.100 and not more than 0.200, and a coverage ratio X1 of the toner surface by the silica fine particles, as determined by X-ray photoelectron spectroscopy (ESCA), of at least 50.0 area %, and not more than 75.0 area %.

Abstract: Disclosed is a toner for electrostatic image development that has sufficient low-temperature fixability, can provide high post-fixing separability, and can be used for stable formation of images at high speed. The toner for electrostatic image development includes toner particles containing a binder resin. The binder resin contains as a part thereof a block copolymer having an A-B-A block copolymer structure including polymer blocks A composed of a structural unit derived from an alkyl methacrylate and a polymer block B composed of a structural unit derived from an alkyl acrylate. The glass transition point (TgA) of a homopolymer of the alkyl methacrylate forming the polymer blocks A is higher than the glass transition point (TgB) of a homopolymer of the alkyl acrylate forming the polymer block B.

Abstract: Disclosed are core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a resin (a) which is a polyurethane resin and a core layer (Q) comprising a resin (b). A core-shell resin particle (C2) is characterized in that the weight ratio between (P) and (Q) is from 0.1:99.9 to 70:30, the volatile content in the resin particle (C2) is not more than 2 weight %, and the content of vinyl resins in the resin (b) is not more than 30 weight %. Such resin particles have a uniform particle diameter and are excellent in electrostatic properties, thermal and storage stability and thermal characteristics.

Abstract: The present invention is a toner for developing electrostatic charge image containing a wax derived from a plant cholesterol, an electric charge-controlling agent, a coloring agent and a binding resin. The toner is suited for use in the electromagnetic induction-heated fixing system which is capable of heating the heating member up to a predetermined fixing temperature in a short period of time, makes it possible to maintain images free of irregular luster or fouling for extended periods of time and is, further, suited for being fixed at a low temperature.

Abstract: The present disclosure provides white toner compositions and processes for making same. In embodiments, a desirable white toner may be produced without having to resort to excessive pigment loading, having desirable gloss characteristics.

Abstract: To provide a toner, which contains a binder resin, a colorant, and a silicone oil-treated external additive, wherein the silicone oil-treated external additive contains free silicone oil, and a total amount of the free silicone oil is 0.2% by mass to 0.5% by mass relative to the toner, and wherein the toner has the average circularity of 0.96 to 1.

Abstract: To provide a toner including a binder resin and a colorant, wherein the toner has a glass transition temperature by differential scanning calorimetry (DSC) of 20° C. or greater and less than 50° C., an endothermic peak temperature by DSC of 50° C. or greater and less than 80° C. and an amount of compressive deformation at 50° C. by a thermomechanical analysis of 5% or less.

Abstract: Provided is a toner comprising a toner particle having a core-shell structure in which a shell phase containing a resin A is formed on a core that contains a binder resin, a colorant and a wax, wherein the resin A is a vinyl resin prepared by copolymerizing a vinyl monomer X that has an organopolysiloxane structure and a vinyl monomer Y that has a polyester segment capable of forming a crystalline structure; the content of the vinyl monomer X in a total monomer used for the copolymerization is in a particular range; the toner particle contains resin A in a particular proportion; and the binder resin contains a crystalline resin.

Abstract: A series of resins were synthesized using a range of bio-based materials to control the molecular architecture, and therefore the properties, of the inventive resins. The resins were formulated into toner formulations such as those useful in printers and copiers.

Abstract: Provided is a toner that is excellent in terms of low-temperature fixability and hot offset resistance, has a wide fixing temperature range from a low-temperature region to a high-temperature region, and has high thermal storability. When the toner is measured with a capillary rheometer, t(1) is 60 seconds or more and t(5) is 30 seconds or less and the toner satisfies the following formulae (1) and (2) 65.0[° C.]?T(5)?90.0[° C.]??(1) 4.5?t(1)/t(5)?10.0??(2).

Abstract: A toner set, including: at least one chromatic toner containing a colorant; and a transparent toner containing no colorant, wherein the chromatic toner and the transparent toner each include a releasing agent and a binder resin, and wherein an amount of a tetrahydrofuran insoluble matter in the transparent toner is smaller than an amount of a tetrahydrofuran insoluble matter in the chromatic toner.

Abstract: A toner particle having a core and a shell, and a method for making the toner particle. The core includes a crystalline resin and the shell includes an amorphous resin. The shell is substantially to completely free of the crystalline resin. The toner particle permits inclusion of greater amounts of crystalline resin materials in the core, thereby lowering the minimum fusing temperature of the toner formed from the particles.

Abstract: A method for producing a toner, comprising the step of feeding raw materials containing a resin binder and a colorant to an open-roller type kneader, and melt-kneading the raw materials, wherein the resin binder contains a crystalline polyester and an amorphous polyester, and wherein the crystalline polyester and the amorphous polyester fed to the open-roller type kneader are in a weight ratio, i.e. crystalline polyester/amorphous polyester, of from 5/95 to 30/70, and have a ratio of average particle sizes of crystalline polyester/amorphous polyester of from 1.5 to 4.0. The toner obtained according to the present invention is used in, for example, the development of a latent image formed in electrophotography, electrostatic recording method, electrostatic printing method or the like.

Abstract: A toner including: a binder resin component; crystal nucleating agent; releasing agent; and colorant, wherein the binder resin component contains a crystalline polyester resin and a non-crystalline polyester resin, the crystal nucleating agent is at least one of an aliphatic ester compound and an aliphatic amide compound each having a melting point of 60° C. or higher but lower than 150° C., and wherein the toner satisfies Expressions (I) and (II): Tc>Tp+10??Expression (I) Tm>Tp+2??Expression (II) where Tp denotes lowest exothermic peak temperature [° C.] in 0° C. to 200° C. in DSC curve obtained DSC of the crystalline polyester resin, Tc denotes lowest exothermic peak temperature [° C.] in 0° C. to 200° C. in DSC curve obtained DSC of the crystal nucleating agent, and Tm denotes lowest exothermic peak temperature [° C.] in 0° C. to 200° C. in DSC curve through DSC of the mixture of the crystalline polyester resin and the crystal nucleating agent.

Abstract: A toner having toner particles, each of which contains a binder resin and a colorant, wherein in viscoelastic properties of the toner as measured with a rotating flat plate rheometer at a frequency of 6.28 rad/sec: a storage elastic modulus at the temperature of 60° C. (G?60) is in a range from 1.0×107 to 1.0×109 (Pa), and a maximal value (G?p) exists for the storage elastic modulus in a temperature range from 110° C. to 140° C., with this G?p being in a range from 5.0×104 to 5.0×106 (Pa).

Abstract: Disclosed is a binder resin for a toner containing at least a carboxyl group-containing vinyl resin (C), a glycidyl group-containing vinyl resin (E), a reaction product of the vinyl resins and a saturated crystalline polyester (S), wherein the saturated crystalline polyester (S) has a predetermined melting point and a predetermined metal component (M), and the binder resin for a toner has a predetermined loss modulus (G?) and a predetermined storage modulus (G?).

Abstract: The present disclosure provides toner compositions able to prevent the formation of mold or bacterial growth during storage. In embodiments, toners may include at least one biocide that prevents the formation of mold and/or bacteria in a toner composition, including any emulsion that may be utilized in forming the toner composition. In embodiments, the biocide may also improve charging characteristics of the toner.

Abstract: To provide a toner that can keep its melt-sticking to sleeve from occurring and, even in double-sided printing, can keep high-temperature offset from occurring and obtain high-quality images on both the surface and the back. The toner comprises toner particles each of which contains a binder resin containing a resin formed by the reaction of i) a resin (A) having a softening point TA (° C.) of 70° C. to 105° C. and having a peak top of endothermic peaks at 55° C. to 120° C. with ii) a resin (B) having a softening point TB (° C.) of 120° C. to 160° C. and having a peak top of endothermic peaks at 55° C. to 120° C., and, in its viscoelasticity characteristics, has a storage elastic modulus at temperature 180° C. (G?180) of 3.0×103 Pa to 3.0×104 Pa, where the loss tangent tan ? has at least one peak having a peak top within the range of 50° C. to 70° C. and, when peak top temperature of the peak is represented by T(° C.), the loss tangent at T+10(° C.) [tan ?(T+10)] is 1.0 to 1.

Abstract: A bio-toner for use in electrophotographic image forming that contains a bio-resin component that is at least partially derived from a renewable resource is provided. A method of making the bio-toner that contains a bio-resin component for use in electrophotographic image forming is also provided. A method for electrophotographic image formation using the bio-toner that contains a bio-resin is also provided.

Abstract: Environmentally friendly toner particles are provided which may include a bio-based amorphous polyester resin, optionally in combination with another amorphous resin and/or a crystalline resin. Methods for providing these toners are also provided. In embodiments, the bio-based amorphous polyester resin includes a biologically derived diol, such as 2,3-butanediol.

Abstract: Toners are provided, which possess low melt properties capable of producing a low gloss finish. The toners include a core and a shell. The shell includes a crystalline resin. The core may include at least one amorphous resin, an optional crystalline resin, an optional wax, and an optional colorant.

Abstract: A toner composition including at least one phosphorescent pigment that absorbs energy released by natural or artificial light, and is able to be seen in a dark environment through luminescence of a certain color created by the energy released as light, and a method of forming and using the toner are described. The phosphorescent toner has a particle size in the range of about 15-40 microns, which allows the toner to have the ability to absorb and then release the needed amount of light energy to be noticeable in a dark environment.

Abstract: An electrophotographic toner contains an electron donating color former compound, an electron accepting color developing agent, and a binder resin, wherein a toluene insoluble content in the electrophotographic toner is 10% by mass or more and 40% by mass or less, and the toner is decolorized by heating.

Abstract: An emulsion aggregation toner composition is disclosed that includes toner particles with at least one small crystalline molecule, such as a trans-cinnamic diester, at least one amorphous resin, optional waxes, coagulants, pigments, and combinations thereof. In other embodiments, the small crystalline molecule is biodegradable and can be made using raw materials derived from renewable resources. Such small crystalline molecules are also compatible with amorphous binder resins, to provide toner compositions with reduced minimum fusing temperatures without sacrificing electrical performance. Processes for preparing emulsion aggregation toner compositions are also described.

Abstract: There is provided a toner, including toner mother particles which contain a binder resin, a colorant, and a wax, wherein a difference between a density of the wax in a solid state and a density of the wax in a liquid state is not less than 0.11 g/cm3; the density of the wax in the liquid state is not more than 0.835 g/cm3; and a heat quantity of the wax per unit mass which is obtained from an endothermic peak area at a low temperature side measured by a differential scanning calorimetry is not less than 190 mJ/mg.

Abstract: A toner including: a binder resin; and a colorant, wherein the toner is obtained by dispersing or emulsifying an oil phase in an aqueous solvent containing an organic sulfonic acid salt and an inorganic salt, the oil phase including the binder resin and the colorant dissolved or dispersed in an organic solvent, wherein the binder resin comprises a crystalline resin in an amount of 50% by mass or more relative to the binder resin, and wherein the toner has an average circularity of 0.980 or less.

Abstract: A toner including a colorant, a resin, and a volatile organic compound in an amount from 1 to 200 ?g/g is provided. The toner has a softening index Ct within a range from 70 to 100° C.

Abstract: A toner comprising toner particles, each of which contains a binder resin and a colorant, wherein the binder resin includes a resin having an endothermic peak at a temperature of 55° C. to 120° C. in a DSC curve; the toner has a softening point Tm of 90° C. to 140° C.; in the viscoelastic characteristic of the toner measured at a frequency of 6.28 rad/sec, the storage elastic modulus at a temperature of 180° C. is 1.0×102 Pa to 1.0×104 Pa; in a chart with the temperature on the x-axis and tan ? on the y-axis, tan ? has a peak having a peak top in the range of 50° C. to 70° C.; tan ? (P) at the peak top temperature is 2.0 to 10.0; the ratio of the tan ? (P) at the peak top temperature to tan ? (Tm) at a temperature of Tm (tan ? (P)/tan ? (Tm)) is in the range of 2.5 to 8.0.

Abstract: An electrophotographic toner, including: a binder resin; a colorant; and an organically-modified layered inorganic mineral, wherein the binder resin contains 50% by mass or more of a crystalline resin relative to the binder resin, and the crystalline resin contains a resin having a sulfonic acid group, and wherein an amount of the sulfonic acid group is 0.1% by mass to 2.0% by mass relative to the resin having the sulfonic acid group.

Abstract: Provided is an electrostatic charge image developer including a first toner that contains a binder resin and a brilliant pigment, a second toner that contains a binder resin without a brilliant pigment, and a carrier, wherein the developer satisfies the following formulae, 5 ?m?A?30 ?m??(1): 1 ?m?B?15 ?m??(2): 3.0?C/A?5.0??(3): 5.0?C/B?20.0??(4): wherein A represents a volume average particle size of the first toner, B represents a volume average particle size of the second toner, and C represents a volume average particle size of the carrier.

Abstract: A toner for developing an electrostatic image, including: toner base particles each including a binder resin and a releasing agent; and inorganic fine particles, wherein the toner includes the inorganic fine particles as an external additive on a surface of the toner base particle, wherein the toner base particles have a BET specific surface area of 2.5 m2/g to 5.0 m2/g, and wherein the inorganic fine particles comprise inorganic fine particles (A) which are each a secondary particle where a plurality of primary particles are coalesced together.

Abstract: A toner is provided which is superior in the long-term storage stability and has high low-temperature fixing properties. In a DSC curve as measured with a differential scanning calorimeter, the toner has a glass transition temperature of not less than 50° C. and not more than 60° C.; and the toner has, in regard to a resin composition contained therein, a difference of not less than 0.060 W/g in heat flow between a point on the curve at a temperature of 40° C. and a baseline in the range exceeding the glass transition temperature; and in viscoelastic characteristics measured at a frequency of 6.28 rad/sec, the toner has a storage elastic modulus (G?40) at a temperature of 40° C. of not less than 7.0×108 Pa and not more than 2.0×109 Pa, and a storage elastic modulus (G?70) at a temperature of 70° C. of not less than 1.0×105 Pa and not more than 1.0×107 Pa.

Abstract: A toner set, including: a transparent toner including a binder resin a, a releasing agent a and no colorant; and one or more color toners, each including a binder resin b, a colorant b and a releasing agent b, wherein the binder resin a includes a non-crystalline resin ? and a crystalline resin ?, the binder resin b includes a non-crystalline resin ? and a crystalline resin ?, the releasing agent a has an average particle diameter as a long diameter of 0.2 ?m to 2.0 ?m, and there is a relationship of 1<A/B<1.5, where A is an area of the releasing agent a in a transparent toner cross-section from a surface thereof to a ?-depth of a volume-average particle diameter, and B is an area of the releasing agent b in a color-toner cross-section from a surface thereof to a ?-depth of a volume-average particle diameter.

Abstract: A toner including: toner base particles; and an external additive, the toner base particles each comprising a binder resin and a colorant, wherein the external additive comprises non-spherical particles and spherical particles, wherein the non-spherical particles are each a secondary particle in which spherical primary particles are coalesced together, and wherein the non-spherical particles and the spherical particles in the external additive satisfy a relationship expressed by the following formula (1): 3Ca(%)<Cb(%)??Formula (1) where Ca is greater than 10% but smaller than 20% and Cb is greater than 40% but smaller than 70%, and Ca and Cb are values given by: Ca = ( an ? ? amount ? ? of ? ? the ? ? non ? - ? spherical ? ? particles ? ? ( % ? ? by ? ? mass ) / 100 ) × ( a ? ? projected ? ? area ? ? of ? ? the ? ? non ? - ? spherical ? ? particles ? ? ( cm 2 ? / ? g ) ) ( an ? ? amount ? ? of ?