Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.

Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.

Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.

Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.

Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.

Abstract: To provide a fixing solution and an image forming method in which faster fixing rate and faster drying rate can be achieved while the amount of fixing solution supplied is reduced and furthermore, a wet feeling in a formed image is reduced and an image having a high fixing strength can be formed. A fixing solution that softens a toner to fix a toner image constituted by the toner to an image support contains a hydroxyl group-containing ester compound expressed by general formula (1) below: R1—(CO)—O—R2??general formula (1): where R1 represents a linear or branched alkyl group having 6 to 11 carbon atoms, and R2 represents a linear or branched alkyl group having at least one hydroxyl group and 2 to 4 carbon atoms.

Abstract: An image forming method forms a color toner image and a white toner image using an image forming apparatus having a plurality of developing machines. The color toner image is formed using a color developer containing a first carrier and at least one color toner selected from a yellow toner, a magenta toner, and a cyan toner. The white toner image is formed using a white developer containing a second carrier and a white toner containing at least titanium oxide as a pigment. Formula (1): Iw<Ic??(1) is satisfied. Ic (?A) is a dynamic current value of the first carrier at 100 V and Iw (?A) is a dynamic current value of the second carrier at 100 V.

Abstract: An electrostatic image developing toner includes toner particles that contain a binder resin and a coloring agent. The binder resin includes an amorphous resin and a crystalline polyester resin. The toner satisfies Relations (1) and (2). ?H1 is the amount of heat absorption based on a melting peak of the crystalline polyester resin in a first heating step from room temperature to 150° C. ?H2 is the amount of heat absorption based on a melting peak of the crystalline polyester resin in a second heating step from 0° C. to 150° C. ?H(theo.) is a value of fusion enthalpy calculated from a mass ratio of a structural unit derived from a linear aliphatic monomer contained in the binder resin based on a group contribution method. 0.2??H1/?H(theo.)?0.5??Relation (1): 0.1??H2/?H(theo.)?0.

Abstract: Provided is an electrostatic image developing toner comprising a toner base particle containing a binder resin and a releasing agent, wherein the binder resin comprises an amorphous vinyl resin and a crystalline polyester resin; a weight-average molecular weight of the electrostatic image developing toner is in the range of 50000 to 90000, when calculated from a chromatogram which represents a molecular weight distribution and is measured by gel permeation chromatography; a ratio of content of a resin component having a molecular weight of 100000 or more is in the range of 10 to 20% by area, in the chromatogram which represents the molecular weight distribution; the crystalline polyester resin has a melting point in the range of 65 to 85° C.; and, a ratio of content of the crystalline polyester resin in the binder resin is in the range of 5 to 20% by mass.

Abstract: The present invention relates to an image forming method of forming a color toner image and a white toner image using an image forming apparatus having a plurality of developing machines, in which the color toner image is formed using a color developer containing at least one color toner selected from the group consisting of a yellow toner, a magenta toner, and a cyan toner and a first carrier, the white toner image is formed using a white developer containing a white toner containing at least titanium oxide as a pigment and a second carrier, and formula (1) below is satisfied wherein Ic (?A) is a dynamic current value of the first carrier at 100 V and Iw (?A) is a dynamic current value of the second carrier at 100 V. According to the present invention, it is possible to suppress image unevenness of a color toner image and a white toner image on a recording medium.

Abstract: Disclosed is a toner for electrostatic image development having excellent low-temperature fixability and high-temperature off-set resistance, attaining good image density, and having excellent homogeneity in image density. The toner comprises toner particles containing a binder resin which contains an amorphous resin (A) and an amorphous polyester resin (B) different from the resin (A) and a colorant, wherein the toner particles have a domain-matrix structure having the resin (B) as a domain phase dispersed in a matrix phase comprising the resin (A), and in a cross-sectional image of the toner particles, the number average domain diameter of the domain phase of the resin (B) having a domain diameter of 100 nm or more is 100 to 200 nm and an area ratio of the domain phase having a domain diameter of 500 nm or more relative to the total area of the domain phase is 0 to 10%.

Abstract: The invention provides an image formation method, a toner set, and a white toner, by which a masking function of an image layer formed by a white toner on a recording medium can be developed efficiently, and low temperature fixability can be improved. An image formation method for fixing an image forming layer (A) to be formed using a white toner, and an image forming layer (B) to be formed adjacent to the image forming layer (A) using a toner different from the white toner on a recording medium; wherein the following relational expressions (1) and (2) are satisfied: 1.000<Dw/Dc<1.300?? (1); and 1.000<Sc/Sw<1.060??(2).

Abstract: The toner includes: a second amorphous polyester resin including a structural unit represented by any of the following general formulas (1) to (3); and a first amorphous polyester resin including no structural units represented by the general formulas (1) to (3). R1, R2, R5, R9 and R10 are each independently an alkyl group having 4 to 15 carbon atoms or an alkenyl group having 4 to 15 carbon atoms, R3, R4, R7, R8 and R11 are each independently an alkylene group having 4 to 14 carbon atoms or an alkenylene group having 4 to 14 carbon atoms, R6 is a saturated or unsaturated divalent aliphatic hydrocarbon group having 4 to 15 carbon atoms, and R12 is a saturated or unsaturated trivalent aliphatic hydrocarbon group having 4 to 14 carbon atoms, and X is an aromatic ring, a carbocyclic ring or a group represented by the following formula (A).

Abstract: An electrostatic image developing toner includes toner particles that contain a binder resin and a coloring agent. The binder resin includes an amorphous resin and a crystalline polyester resin. The toner satisfies Relations (1) and (2). ?H1 is the amount of heat absorption based on a melting peak of the crystalline polyester resin in a first heating step from room temperature to 150° C. ?H2 is the amount of heat absorption based on a melting peak of the crystalline polyester resin in a second heating step from 0° C. to 150° C. ?H(theo.) is a value of fusion enthalpy calculated from a mass ratio of a structural unit derived from a linear aliphatic monomer contained in the binder resin based on a group contribution method. 0.2??H1/?H(theo.)?0.5??Relation (1): 0.1??H2/?H(theo.)?0.

Abstract: The invention provides an image formation method, a toner set, and a white toner, by which a masking function of an image layer formed by a white toner on a recording medium can be developed efficiently, and low temperature fixability can be improved. An image formation method for fixing an image forming layer (A) to be formed using a white toner, and an image forming layer (B) to be formed adjacent to the image forming layer (A) using a toner different from the white toner on a recording medium; wherein the following relational expressions (1) and (2) are satisfied: 1.000<Dw/Dc<1.300??(1); and 1.000<Sc/Sw<1.060??(2).

Abstract: An image forming method includes: disposing a white toner image of a white toner and a colored toner image of a colored toner in the order named; and heat-fixing these toner images to a recording medium. The white toner and the colored toner satisfy the following relational expressions (1) and (2). In the expressions, G?0(w), G?10(w) and G?20(w) respectively represent storage moduli of the white toner 0 seconds after, 10 seconds after and 20 seconds after start of time variance measurement, and G?0(c), G?10(c) and G?20(c) respectively represent storage moduli of the colored toner 0 seconds after, 10 seconds after and 20 seconds after the start of time variance measurement. The storage moduli are obtained by the time variance measurement at 90° C.

Abstract: To provide a fixing solution and an image forming method in which faster fixing rate and faster drying rate can be achieved while the amount of fixing solution supplied is reduced and furthermore, a wet feeling in a formed image is reduced and an image having a high fixing strength can be formed. A fixing solution that softens a toner to fix a toner image constituted by the toner to an image support contains a hydroxyl group-containing ester compound expressed by general formula (1) below: R1—(CO)—O—R2??general formula (1): where R1 represents a linear or branched alkyl group having 6 to 11 carbon atoms, and R2 represents a linear or branched alkyl group having at least one hydroxyl group and 2 to 4 carbon atoms.

Abstract: Disclosed is a toner for electrostatic image development having excellent low-temperature fixability and high-temperature off-set resistance, attaining good image density, and having excellent homogeneity in image density. The toner comprises toner particles containing a binder resin which contains an amorphous resin (A) and an amorphous polyester resin (B) different from the resin (A) and a colorant, wherein the toner particles have a domain-matrix structure having the resin (B) as a domain phase dispersed in a matrix phase comprising the resin (A), and in a cross-sectional image of the toner particles, the number average domain diameter of the domain phase of the resin (B) having a domain diameter of 100 nm or more is 100 to 200 nm and an area ratio of the domain phase having a domain diameter of 500 nm or more relative to the total area of the domain phase is 0 to 10%.

Abstract: Provided is a toner for electrostatic image development, having both sufficient low-temperature fixability and good post-fixing separability simultaneously. The toner for electrostatic image development includes: a second amorphous polyester resin including a structural unit represented by any of the following general formulas (1) to (3); and a first amorphous polyester resin including no structural units represented by the general formulas (1) to (3).

Abstract: In an image forming method of wet fixing system, the fixing solution contains an ester compound represented by at least one of general formula (1) and general formula (2) below: R11—(CO)—O—R12??General formula (1): where R11 represents a linear or branched alkyl group having at least one hydroxyl group and 2 to 11 carbon atoms, and R12 represents a linear or branched alkyl group having 1 to 4 carbon atoms; R21—O—(CO)—R22—(CO)—O—R23??General formula (2): where R21 represents a linear or branched aliphatic hydrocarbon group having 1 to 4 carbon atoms, R22 represents a linear or branched aliphatic hydrocarbon group having at least one hydroxyl group and 1 to 8 carbon atoms, and R23 represents a linear or branched aliphatic hydrocarbon group having 1 to 4 carbon atoms.