Abstract: A toner or developer is provided having toner particles which exhibit a higher glass transition temperature on their surface than the interior thereof. In one aspect, the toner particles contain a crystalline polyester resin, an amorphous polyester resin and a coloring material, in which the core of the toner particles exhibit the glass transition temperature g of from 30° C. to 45° C. and the surface of the toner particles exhibits the glass transition temperature of from 50° C. to 70° C.

Abstract: A resin binder for use in a toner, containing an amorphous polyester having a furan ring; and a toner for electrophotography, containing the resin binder. The resin binder for use in a toner of the present invention is suitably used in a toner usable in development of latent images formed in electrophotography, an electrostatic recording method, an electrostatic printing method, or the like.

Abstract: A plurality of image parts, each having a different gloss level, are formed on the same recording material by electrophotographic technology. The plurality of gloss levels are visually recognized due to the plurality of image parts. The image forming method includes: developing electrostatic latent images on respective image carriers using a high softening point clear toner and a low softening point clear toner, to form a toner image by the high softening point clear toner and a toner image by the low softening point clear toner; transferring the toner images onto a recording material; and heat-fixing the toner image for low gloss and the toner image for high gloss transferred and formed onto the recording material, wherein a softening point Tm(a) of the high softening point clear toner and a softening point Tm(b) of the low softening point clear toner satisfy Tm(a)?Tm(b)>6° C.

Abstract: A toner containing at least a binder resin and a colorant, wherein the toner has a core-shell structure composed of a core, and a shell having a thickness of 0.01 ?m to 2 ?m on a surface of the core, and wherein the toner satisfies the following relation: 1.1?ST/CT?2.0 where ST is a softening temperature of the shell, and CT is a softening temperature of the core, both measured by a SPM probe with an integrated heater.

Abstract: A toner for forming an electrophotographic image is provided, wherein the toner includes at least four types of binder resins, wherein the binder resins includes at least: a crystalline polyester resin (A); a non-crystalline resin (B); a non-crystalline resin (C); and a composite resin (D) which includes a condensation polymerization resin unit and an addition polymerization resin unit, wherein the non-crystalline resin (B) includes a chloroform insoluble matter, wherein the non-crystalline resin (C) has a softening temperature (T½) lower than that of the non-crystalline resin (B) by 25° C. or more, and wherein the toner has a main peak between 1,000 to 10,000 in a molecular weight distribution obtained by GPC from a tetrahydrofuran soluble matter, and the toner has a half-value width of the molecular weight distribution of 15,000 or less.

Abstract: A method for forming an image at least comprising steps of forming an electrostatic latent image by exposing an electrophotographic photoreceptor, forming a foil transferring face by supplying a toner onto the electrophotographic photoreceptor having the electrostatic latent image, transferring the foil transferring face formed on the electrophotographic photoreceptor to a base substance, fixing the foil transferring face transferred on the base substance, supplying a transfer foil to the base substance fixed with the foil transferring face, adhering the transfer foil onto the foil transferring face by heating under a condition of contacting the transfer foil with the foil transferring face; and removing the transfer foil from the base substance while leaving the foil adhered onto the foil transferring face, wherein the toner comprises a binder resin having a softening temperature in the range of from not less than 105° C. to not more than 140° C.

Abstract: An image forming apparatus includes plural developing units separately containing a toner A and a toner B that satisfy relationships (1) and (2) and have similar colors. The toner A and the toner B each contain a binder resin containing a polyester about 90 mass % or more of the binder resin, and about 90 mass % of the binder resin of the toner A and about 90 mass % of the binder resin of the toner B are the same resin. The polyester contains an amorphous polyester having an alkyl side chain and a crystalline polyester. The relationship (1) is Ta (toner A)>Tb (toner B) in terms of flow tester ½ effluent temperature. The relationship (2) is Aa (toner A)>Ab (toner B) in terms of an amount of an aluminum (with reference to net intensity) measured with fluorescent X-ray.

Abstract: Disclosed is a full-color image forming method by which an image exhibiting comfortable image quality reliably suitable for a human visual system can be obtained in such a way that a halftone image exhibiting excellent granularity and evenness thereof is acquired.

Abstract: An image forming method, including charging a photoreceptor with a charger contacting thereto; irradiating the photoreceptor to form an electrostatic latent image thereon; developing the electrostatic latent image with a toner to form a toner image on the photoreceptor; transferring the toner image onto a recording material directly or through an intermediate transferer; and fixing the toner image on the recording material, wherein the toner includes a binder resin; a colorant; a composition having a low softening point; and an external additive, and wherein a surface resistivity Rse [?] of the charger and a volume resistivity Rsw [?·cm] of the composition having a low softening point satisfy the following relationship: 0.8×10?1Rse<Rvw<1.5×10Rse.

Abstract: In an imaging color toner employing a photofixing system, a binder resin, which contains, as a principal component, a polyester resin obtained by mixing a first polyester resin having a softening point Tsp of not lower than 120° C. and lower than 170° C. with a second polyester resin having a softening point Tsp of not lower than 80° C. and lower than 110° C. in a weight ratio of 80:20 to 20:80, is used. The color toner is used in an electrophotographic process and other imaging processes.