Abstract: A toner comprising a toner particle, the toner particle comprising: a binder resin and a wax; wherein the toner particle has a toner core particle and a protrusion present on the surface of the toner core particle, the protrusion comprises an organosilicon polymer, where in cross-sectional observation of the toner particle, a line segment connecting both ends of an interface between the toner core particle and the protrusion is defined as a reference line, and the length of the reference line is denoted by W (nm), and a maximum length of the protrusion in the toner core particle direction from the reference line in the normal direction of the reference line is defined as a maximum penetration depth I (nm), W and I satisfy I/W?0.050, and Young's modulus of the protrusion E1 is 1.00 to 3.90 GPa.

Abstract: A toner comprising a toner particle, wherein the toner particle comprises a toner core particle, and the toner core particle comprises a binder resin; the binder resin comprises a resin A; the resin A comprises a monomer unit M1 having a specific structure in a specific amount, and a monomer unit M2 comprising an organosilicon polymer segment in a specific amount; the organosilicon polymer segment has a T3 unit structure and a T2 unit structure; in a DD/MAS measurement of the resin A by solid-state 29Si-NMR, a proportion of a peak area corresponding to a silicon atom with the T3 unit structure, and a proportion of a peak area corresponding to a silicon atom with the T2 unit structure satisfy a specific relationship; and the weight-average molecular weight Mw of a tetrahydrofuran-soluble fraction of the resin A lies within a specific range.

Abstract: A toner comprising a toner particle, wherein the toner particle comprises a binder resin and wax, and where with respect to a slope X of a straight line obtained by performing a micro-compression test on the toner, obtaining a relationship of a deformation amount (?m) to a load (mN), calculating a percentage deformation (%), which is a ratio of the deformation amount to a particle diameter of the particle measured, plotting a load (mN)?percentage deformation (%) plot, and then using all the points plotted within the range in which the percentage deformation was 15% or less of the particle diameter of the particle for approximation by a least squares method, the slope X measured at 30° C. is denoted by X30 and the slope X measured at 45° C. is denoted by X45, the X30 is 25 to 300, and the X45 is 400 to 1000.

Abstract: A toner comprising a toner particle, wherein the toner particle comprises a binder resin, the binder resin comprises a resin A and a resin B, the toner particle comprises protrusions on a surface thereof, each of the protrusions comprises the resin B, a shape factor SF-2 of the toner as observed under SEM is 105 to 120, and when the toner is observed under the SEM, a surface unevenness index of the toner as calculated by formula (1) below is 0.010 to 0.050: Surface unevenness index=(area of region surrounded by convex hull of toner?projected area of toner)/projected area of toner??(1).

Abstract: A toner, comprising a toner particle, wherein the toner particle has a core-shell structure comprising a core particle and a shell on a surface of the core particle, the shell comprises a polymer having monomer units represented by Formula (I) below, the toner comprises a specific external additive A, the external additive A is at least one selected from the group consisting of silica fine particles and organosilicon polymer fine particles, and a ratio of coverage of a surface of the toner particle with the external additive A is 0.3 area % or higher: in Formula (I), L1 represents —COO(CH2)n— (where n is an integer of 1 to 10), and carbonyl of L1 is bonded to a carbon atom of a main chain; R1 represents hydrogen or a methyl group; and R2 to R10 represent each independently an alkyl group having 1 to 4 carbon atoms.

Abstract: A toner comprising a toner particle that includes a binder resin, wherein in dynamic viscoelasticity measurement of the toner, the storage elastic modulus of the toner at 70° C. is from 0.10 MPa to 3.00 MPa, and in nanoindentation measurement of the toner, the surface storage elastic modulus of the toner at 25° C. under 150 ?N of load is from 2.80 GPa to 4.50 GPa.

Abstract: A toner comprises a toner particle comprising a core particle comprising a resin component, a shell coating the surface of the core particle, and a polyvalent metal. The resin component comprises a polyester resin, and the shell comprises an amino resin; in an electron image of a cross section of the toner acquired using a transmission electron microscope, a polyvalent metal content P(M) obtained by energy-dispersive x-ray analysis at the core/shell interface and in the vicinity of this interface is 0.0010 to 2.00 atomic %; and the surface storage elastic modulus of the toner at a load of 30 ?N at 25° C., according to nanoindentation measurement of the toner, is from 6.50 GPa to 12.00 GPa.

Abstract: A toner comprising a toner particle comprising a binder resin, wherein the toner particle comprises a condensation product of an organosilicon compound, in time-of-flight secondary ion mass spectrometry of the toner particle, a normalized intensity of silicon ions derived from the condensation product of the organosilicon compound is from 7.00×10?4 to 3.00×10?2, a normalized intensity of silicon ions after sputtering the toner particle under a specific condition is 6.99×10?4 or lower, the toner comprises a fine particle on the surface of the toner particle, and the fine particle has at least one selected from the group consisting of a specific fine particle of a polyhydric acid metal salt, a strontium titanate fine particle, a titanium oxide fine particle and an aluminum oxide fine particles.

Abstract: A toner comprising a toner particle and a silica particle on a surface of the toner particle, wherein an area formed by a polyester resin and an area formed by a styrene-acrylic resin are present on the surface of the toner particle; the silica particle has the number-average particle diameter of 15 to 60 nm; the silica particle has the average pore diameter of 5.0 to 20.0 nm; and the silica particle has the total pore volume of 0.20 to 1.50 cm3/g.

Abstract: A toner comprising a toner particle, wherein the toner particle comprises a binder resin, the binder resin comprises a resin A and a resin B, the toner particle comprises protrusions on a surface thereof, each of the protrusions comprises the resin B, a shape factor SF-2 of the toner as observed under SEM is 105 to 120, and when the toner is observed under the SEM, a surface unevenness index of the toner as calculated by formula (1) below is 0.010 to 0.050: Surface unevenness index=(area of region surrounded by convex hull of toner?projected area of toner)/projected area of toner??(1).

Abstract: A toner comprising a toner particle that includes a binder resin, wherein in dynamic viscoelasticity measurement of the toner, the storage elastic modulus of the toner at 70° C. is from 0.10 MPa to 3.00 MPa, and in nanoindentation measurement of the toner, the surface storage elastic modulus of the toner at 25° C. under 150 ?N of load is from 2.80 GPa to 4.50 GPa.

Abstract: A toner having toner particles, each of which contains a binder resin, a wax and inorganic fine particles, wherein the inorganic fine particles are fixed at the surface of the toner particles as a result of a surface treatment by hot air, and the degree of uneven distribution of wax in the toner is controlled in a depth direction of the toner, from the toner surface towards a toner central portion.

Abstract: A toner contains toner particles. The toner particles are made of a resin containing an amorphous polyester resin, a releasing agent, an additive and a coloring agent. The additive has a polyester portion and a crystalline acrylic portion that are chemically bound to each other.

Abstract: A toner having toner particles, each of which contains a binder resin, a wax and inorganic fine particles, wherein the inorganic fine particles are fixed at the surface of the toner particles as a result of a surface treatment by hot air, and the degree of uneven distribution of wax in the toner is controlled in a depth direction of the toner, from the toner surface towards a toner central portion.

Abstract: Provided is a toner has toner particle containing a crystalline polyester resin A, an amorphous resin B and a colorant, wherein (1) the crystalline polyester resin A is a resin that has a crystal nucleating agent segment (D) on the end of a polyester molecular chain (C), (2) the amorphous resin (B) is a hybrid resin in which a polyester unit (E) and a vinyl polymer unit (F) are chemically bonded, and (3) the SP value of the polyester molecular chain (C) (Sc), the SP value of the crystal nucleating agent segment (D) (Sd), the SP value of the polyester unit (E) (Se) and the SP value of the vinyl polymer unit (F) (Sf) satisfy specific relationships.

Abstract: Provided is a toner having excellent long-term storage stability and exhibiting both low-temperature fixability and uniform gloss in high-speed printing. A toner has a toner particle that contains a crystalline polyester resin A, an amorphous polyester resin B and a colorant, wherein the crystalline polyester resin A has a polyester molecular chain having a nucleating agent segment at the terminal end thereof, and an SP value Sa ((cal/cm3)1/2) of the crystalline polyester resin A ranges from 9.00 to 11.50, and the amorphous polyester resin B has a specific functional group.

Abstract: A toner having toner particles, each of which contains a binder resin, a wax and inorganic fine particles, wherein the inorganic fine particles are fixed at the surface of the toner particles as a result of a surface treatment by hot air, and the degree of uneven distribution of wax in the toner is controlled in a depth direction of the toner, from the toner surface towards a toner central portion.

Abstract: A toner contains toner particles. The toner particles are made of a resin containing an amorphous polyester resin, a releasing agent, an additive and a coloring agent. The additive has a polyester portion and a crystalline acrylic portion that are chemically bound to each other.

Abstract: A toner manufacturing method includes a first mixing process of mixing toner base particles, each of which contains a colorant, a crystalline resin, an amorphous resin, and wax with inorganic fine particles to obtain a mixture and a second mixing process of further mixing the mixture, in which, in both the mixing processes, a stirring unit for imparting mechanical impact force is used and the processing is performed at a specific processing temperature (° C.) with a specific stirring power (W/kg).

Abstract: A toner is provided that exhibits a satisfactory heat-resistant storability and an excellent low-temperature fixability. The toner has toner particles each of which contains at least a binder resin and a wax, and is characterized in that this toner is obtained by attaching a metal compound to the surface of the toner particle and thereafter performing a surface treatment with a hot air current; the binder resin contains at least a polyester resin; and the metal compound is formed by coordinating or bonding a specific aromatic oxycarboxylic acid to a metal.