A toner includes a plurality of toner particles each including a toner core and a shell layer disposed over the surface of the toner core. The shell layer includes a thermosetting portion substantially composed of a water-insoluble thermosetting resin and a thermoplastic portion substantially composed of a water-insoluble thermoplastic resin. At least a part of the thermoplastic portion has a shape of a film with projections and recesses and is located on the surface of the toner core. At least a part of the thermosetting portion is located on the thermoplastic portion. The part of the thermosetting portion located on the thermoplastic portion has a shape of a film along the shape of the thermoplastic portion.

A block copolymer includes a crystalline polyester block and an amorphous polyalkylsiloxane block, the block copolymer exhibiting baroplastic behavior. The block copolymer is used in a cold pressure fix toner. A method of making a block copolymer including a crystalline polyester block and an amorphous polyalkylsiloxane block includes heating a mixture of a diacid, a diol, and a carbinol-terminated poly(alkylsiloxane).

A block copolymer includes a crystalline polyester block and an amorphous polyalkylsiloxane block, the block copolymer exhibiting baroplastic behavior. The block copolymer is used in a cold pressure fix toner. A method of making a block copolymer including a crystalline polyester block and an amorphous polyalkylsiloxane block includes heating a mixture of a diacid, a diol, and a carbinol-terminated poly(alkylsiloxane).

A method for producing a resin particle dispersion includes using a resin particle dispersion production apparatus including: two or more resin particle dispersion production lines each including an emulsification tank in which a resin is subjected to phase inversion emulsification using two or more organic solvents and an aqueous medium to thereby obtain a phase-inverted emulsion, a distillation tank in which the organic solvents are removed from the phase-inverted emulsion by reduced pressure distillation to thereby obtain a resin particle dispersion, and plural distillate collection tanks that collect distillates formed during the reduced pressure distillation according to respective target distillate compositions; and a reusable distillate storage tank A that collects and stores a distillate collected in at least one distillate collection tank A among the distillates collected in the plural distillate collection tanks in each of the two or more resin particle dispersion production lines. The distillate collected in the reusable distillate storage tank A is delivered to the emulsification tank in at least one resin particle dispersion production line among the two or more resin particle dispersion production lines to reuse the distillate for production of a phase-inverted emulsion in the at least one resin particle dispersion production line.

Disclosed herein is a toner composition, developer and additive for a toner composition. The toner composition includes toner particles having at least one resin, an optional colorant, an optional wax, and a crosslinked polymer particle on at least a portion of an external surface of the toner particles. The crosslinked polymeric particle on a surface of the toner particles includes at least a hydrophobic monomer comprising a non-fluorinated monomer having a carbon to oxygen (C/O) ratio of 3 or greater or a fluorinated monomer. The crosslinked polymer particle includes a second monomer comprising two or more vinyl groups present in an amount from about 8 wt % to about 40 wt % of the copolymer, a metal oxide and optionally a charge control agent monomer.

Fluorescent magenta latexes are provided which may comprise water and fluorescent agent-incorporated resin particles, the particles comprising a resin, Solvent Red 49 as a red fluorescent agent, and Solvent Yellow 98 as a yellow fluorescent agent, wherein the fluorescent magenta latex has a weight ratio of the Solvent Red 49 to the Solvent Yellow 98 in a range of from 3:1 to 10:1. Fluorescent magenta toners and methods of making and using the fluorescent magenta toners are also provided.

Fluorescent orange latexes are provided which comprise water and fluorescent agent-incorporated resin particles, the particles comprising a resin, Solvent Red 49 as a red fluorescent agent, and Solvent Yellow 98 as a yellow fluorescent agent, wherein the fluorescent orange latex has a weight ratio of the Solvent Yellow 98 to the Solvent Red 49 in a range of from 20:1 to 0.5:1. Fluorescent orange toners and methods of making and using the fluorescent orange toners are also provided.

A toner for developing an electrostatic image includes a toner particle. The toner particle includes a binder resin and a black colorant. The binder resin includes a crystalline resin component. A toner layer formed through a deposition of the toner on a glass sheet in an amount of 6.5 g/m.sup.2 exhibits a light transmittance of 1 to 3% at a wavelength of 690 nm after applying heat at a temperature of 185° C. for five seconds to the toner layer from a position 100 μm away from a surface of the toner layer.

A toner includes toner particles. The toner particles each include a toner core, silica particles located on a surface of the toner core, and a shell layer disposed over the surface of the toner core on which the silica particles are located. For at least 80% by number of the toner particles, along at least 80% of a circumferential length of a cross-section of the toner particle when the cross-section is analyzed by EELS, the shell layer has a thickness of at least 5 nm and satisfies a condition that a ratio of an intensity INc relative to an intensity INs is at least 0.0 and no greater than 0.2. The intensity INs indicates intensity of an N—K shell absorption-edge originating from nitrogen atoms in the shell layer. The intensity INc indicates intensity of an N—K shell absorption-edge originating from nitrogen atoms in the toner core.

A toner includes a plurality of toner particles each having a core and a shell layer residing on a surface of the core. Each of the toner particles has a distribution of surface potential, as measured by a scanning probe microscope with respect to a 1 μm.sup.2 region of the toner particle in a state where no external additive adheres thereto, satisfying that the surface potential is at least Vmin+ΔV×0.4 in at least 70% and no greater than 95% of the 1 μm.sup.2 region, where ΔV denotes a potential difference calculated by subtracting a minimum surface potential Vmin of the 1 μm.sup.2 region from a maximum surface potential Vmax of the 1 μm.sup.2 region.