Provided is an image forming method, including: transferring and fixing a toner onto a recording medium, and forming an image including a plurality of layers, in which an attachment amount of the toner on the recording medium is greater than or equal to 8 g/m.sup.2 and less than or equal to 40 g/m.sup.2, a toner forming a layer in contact with a fixing member contains at least a first mold release agent containing ester wax and a second mold release agent containing microcrystalline wax, and a special color toner is contained in any layer of the plurality of layers.

A liquid developer containing a liquid carrier and a toner particle that is insoluble in the liquid carrier, wherein a particular substructure is bonded through a covalent bond to a surface of the toner particle, and a method of producing a liquid developer containing a liquid carrier and a toner particle that is insoluble in the liquid carrier, the method comprising a step (I) of covalently bonding, to a surface of the toner particle, a compound having a particular substructure.

A toner comprising a toner particle having a binder resin and a colorant, and metal titanate fine particles, wherein the toner particle includes a polyvalent metal element having an electric resistivity of from 2.510.sup.8 .Math.m to 10.010.sup.8 .Math.m; the amount of the polyvalent metal element in the toner particle is from 0.080 mol/g to 20.000 mol/g; the metal titanate fine particles have a perovskite crystal structure; and the number average particle diameter of primary particles of the metal titanate fine particles is from 10 nm to 80 nm.

A part material for printing three-dimensional parts with a selective deposition-based additive manufacturing system has a composition having a thermoplastic polyuiethane polymer and a charge control agent. The part material is provided in a powder form having a D90/D50 particle size distribution and a D50/D10 particle size distribution each ranging from about 1.00 to about 1.40, wherein the part material is configured for use in the selective deposition-based additive manufacturing system having a layer transfusion assembly for printing the three-dimensional parts in a layer-by-layer manner.

Provided is a toner has a toner particle containing a binder resin and is characterized in that the binder resin contains a polymer A, which is a polymer of a composition containing a first polymerizable monomer, a second polymerizable monomer and a crosslinking agent, the first polymerizable monomer is at least one monomer selected from the group consisting of (meth)acrylic acid esters having an alkyl group with 18 to 36 carbon atoms, the crosslinking agent has two or more polymerizable double bonds, a content of the first polymerizable monomer in the composition is 5.0 to 60.0 mol %, a content of the second polymerizable monomer is 20.0 to 95.0 mol %, and when the SP values of the first polymerizable monomer, the second polymerizable monomer and the crosslinking agent are denoted by SP.sub.12, SP.sub.22 and SP.sub.C2, respectively, the formulae 0.60(SP.sub.22SP.sub.12)15.00 and SP.sub.12<SP.sub.C2<(SP.sub.22+3.00) are satisfied.

A toner process including a) mixing reagents comprising at least one amorphous resin, an optional crystalline resin, an optional styrene, acrylate or styrene/acrylate, an optional wax, and an optional colorant to form an emulsion comprising a resin particle; b) adding at least one aggregating agent and aggregating said resin particle to form a nascent toner particle; c) optionally, adding one or more resins to form a shell on said nascent toner particle to yield a core-shell particle; d) adding a first chelating agent and a second chelating agent; wherein said first chelating agent and said second chelating agent are different; e) freezing particle growth to form an aggregated toner particle; f) coalescing said aggregated toner particle to form a toner particle; and g) optionally, collecting said toner particle.

A toner is provided that contains a crystalline polyester resin comprising a polycondensed resin of a dicarboxylic acid represented by the following formula (1) with a diol represented by the following formula (2). A content of a cyclic ester represented by the following formula (3) in the toner, measured by a thermal extraction gas chromatographic mass spectrometry at a thermal extraction temperature of 160 C., is from 1 to 200 ppm in terms of toluene: ##STR00001##
where n represents an integer of from 2 to 12; ##STR00002##
where m represents an integer of from 2 to 12; and ##STR00003##
where n represents an integer of from 2 to 12, m represents an integer of from 2 to 12, and m+n6 is satisfied.

A brilliant toner includes a first toner which contains a first toner particle containing a flake-shape brilliant pigment; and a second toner which contains a second toner particle containing a flake-shape brilliant pigment, and has a different color from that of the first toner, and an electrostatic charge image developing toner includes a first toner which contains a first toner particle; and a second toner which has a different color from that of the first toner, and contains the second toner particle, in which, based on a charge distribution of each of the first toner and the second toner obtained according to a charge spectrograph method, maximum peak positions of the first toner and the second toner are taken as P.sub.1 and P.sub.2, respectively, and full widths at half maximum of the first toner and the second toner are taken as W.sub.1 and W.sub.2, respectively, |P.sub.1P.sub.2| is 3 mm or less, and |W.sub.1W.sub.2| is 3 mm or less.

A toner comprising an external additive and a toner particle including a binder resin, a colorant and inorganic fine particles A, wherein the external additive contains an external additive B, a number average particle diameter of primary particles of the external additive B is 30 to 200 nm, an adhesion index of the external additive B to the toner particle is 0.00 to 3.00, a number average particle diameter of primary particles of the inorganic fine particles A is greater than that of the external additive B, and in SEM observations of the toner under specific condition, the number of particles (Na) of the external additive B in a 2 m square region of the toner surface and the number of particles (Nb) of the external additive B observed in a state of overlapping with the inorganic fine particles A in the region satisfy Nb/Na of 0.20 or more.

The toner for developing electrostatic images comprises colored resin particles comprising a binder resin, a colorant, a charge control resin and a softening agent, and an external additive, wherein the charge control resin is a copolymer having a composition in which a content ratio of a methyl methacrylate monomer unit is from 85.0 to 99.7% by mass; a content ratio of a quaternary ammonium salt group-containing (meth)acrylate monomer unit is from 0.3 to 15.0% by mass; and a content ratio of a vinyl-based monomer unit other than the methyl methacrylate monomer unit and the quaternary ammonium salt group-containing (meth)acrylate monomer unit, is from 0 to 14.7% by mass, and wherein a content ratio of the charge control resin is from 0.2 to 4.0 parts by mass, with respect to 100 parts by mass of the binder resin.