Abstract: It is an object to suppress yellowing of a binder resin while obtaining an image with a high degree of whiteness and to suppress occurrence of image defects when printing at a high temperature and a high humidity. A toner for developing an electrostatic image, the toner including: white toner base particles containing a binder resin and titanium oxide having an average particle size of from 130 to 600 nm; and an external additive including strontium titanate.

Abstract: A high quality image excellent in low-temperature fixability and good in color stability can be formed by an image forming method of the present invention. In the image forming method, an image is formed by an electrophotographic method using toners of plural colors. Each of the toners of the plural colors contains a crystalline resin, methanol concentrations (%) at transmittance of 50% obtained for methanol wettability evaluation of the toners of the plural colors all fall in a range of 15 to 60%, and assuming that a maximum value and a minimum value of the methanol concentrations (%) at transmittance of 50% obtained for the methanol wettability evaluation of the toners of the plural colors are respectively WH (%) and WL (%), a relationship of 4?WH?WL?30 is satisfied.

Abstract: A two-component developer includes: a toner containing a binder resin and a layered inorganic mineral; and a carrier containing core material particles and a coating layer with which at least a part of surfaces of the core material particles is coated, the coating layer containing a coating resin, the coating resin containing a resin A having a constituent unit derived from a (meth)acrylate monomer, and the (meth)acrylate monomer containing an alicyclic (meth)acrylate monomer.

Abstract: It is an object to suppress yellowing of a binder resin while obtaining an image with a high degree of whiteness and to suppress occurrence of image defects when printing at a high temperature and a high humidity. A toner for developing an electrostatic image, the toner including: white toner base particles containing a binder resin and titanium oxide having an average particle size of from 130 to 600 nm; and an external additive including strontium titanate.

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: A high quality image excellent in low-temperature fixability and good in color stability can be formed by an image forming method of the present invention. In the image forming method, an image is formed by an electrophotographic method using toners of plural colors. Each of the toners of the plural colors contains a crystalline resin, methanol concentrations (%) at transmittance of 50% obtained for methanol wettability evaluation of the toners of the plural colors all fall in a range of 15 to 60%, and assuming that a maximum value and a minimum value of the methanol concentrations (%) at transmittance of 50% obtained for the methanol wettability evaluation of the toners of the plural colors are respectively WH(%) and WL(%), a relationship of 4?WH?WL?30 is satisfied.

Abstract: Provided is an electrostatic latent image developing toner comprising toner matrix particles that comprise resin components comprising a vinyl resin as a main component and a crystalline resin, and a mold release agent. The electrostatic latent image developing toner includes a structural body in which a portion of the crystalline resin is in contact with the mold release agent, and a portion of the crystalline resin having a thread-like structure that is not in contact with the mold release agent, in cross-sections of the toner matrix particles.

Abstract: Provided is an electrostatic image developing toner incorporating toner mother particles containing a binder resin and a releasing agent, wherein the binder resin contains an amorphous polyester resin and a crystalline resin; and the toner mother particles have a region (A) including a structure a formed with the releasing agent and the crystalline resin being in contact with each other, and a region (B) in which the crystalline resin forms a lamellar crystalline structure b independently existing without contacting with the releasing agent.

Abstract: Provided is an electrostatic latent image developing toner comprising toner matrix particles that comprise resin components comprising a vinyl resin as a main component and a crystalline resin, and a mold release agent. The electrostatic latent image developing toner includes a structural body in which a portion of the crystalline resin is in contact with the mold release agent, and a portion of the crystalline resin having a thread-like structure that is not in contact with the mold release agent, in cross-sections of the toner matrix particles.

Abstract: An image forming method includes: charging a surface of an electrostatic latent image holder with a charging roller; exposing the charged surface so as to form an electrostatic latent image; and developing the formed electrostatic latent image with toner. The toner contains at least a toner base particle and an external additive minute particle. The external additive minute particle contains a silica-polymer composite minute particle. A silicon atom abundance ratio obtained from abundances of a carbon atom, an oxygen atom and a silicon atom present on an outermost surface and within 3 nm from the outermost surface in a depth direction of the silica-polymer composite minute particle are measured with an x-ray photoelectron spectrometer satisfies at least the following condition A. 15.0 atm %?silicon atom abundance ratio ({Si/(C+O+Si)}×100)?30.

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: 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 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: A toner for electrostatic latent image development of the present invention includes toner particles containing toner mother particles and an external additive. The external additive contains fatty acid metal salt particles, and a volume based particle diameter (size) distribution of the fatty acid metal salt particles has two peaks on a side of smaller size and a side of larger size, respectively. A volume based mean particle diameter of the fatty acid metal salt particles having the peak on the side of smaller size is 3.0 ?m or smaller and a volume based mean particle diameter of the fatty acid metal salt particles having the peak on the side of larger size is larger than a volume based mean particle diameter of the toner mother particles.

Abstract: An electrostatic charge image developing toner includes: toner matrix particles containing a binder resin; and an external additive added to the toner matrix particles, wherein the external additive includes joined particles each including a secondary particle including a plurality of spherical primary particles joined together, the joined particles include at least particles with a secondary particle size d2 in the range of 70 nm to 400 nm, and particles with a ratio d2/d1 in the range of 1.6 to 4.2 make up at least 50% by number of the particles with a secondary particle size d2 in the range of 70 nm to 400 nm, wherein d1 is the diameter of primary particles in the joined particle, and d2 is the secondary particle size.

Abstract: An image forming method includes: charging a surface of an electrostatic latent image holder with a charging roller; exposing the charged surface so as to form an electrostatic latent image; and developing the formed electrostatic latent image with toner. The toner contains at least a toner base particle and an external additive minute particle. The external additive minute particle contains a silica-polymer composite minute particle. A silicon atom abundance ratio obtained from abundances of a carbon atom, an oxygen atom and a silicon atom present on an outermost surface and within 3 nm from the outermost surface in a depth direction of the silica-polymer composite minute particle are measured with an x-ray photoelectron spectrometer satisfies at least the following condition A. 15.0 atm %?silicon atom abundance ratio ({Si/(C+O+Si)}×100)?30.

Abstract: A foil transferring method employing an electrophotography is disclosed, in which a toner used for forming a foil transferring layer contains at least a vinyl based resin and a polyester based resin as a binder resin and an amount of the vinyl based resin is 50 to 95% by weight based on the total amount of the binder resin.

Abstract: A toner for electrostatic latent image development of the present invention includes toner particles containing toner mother particles and an external additive. The external additive contains fatty acid metal salt particles, and a volume based particle diameter (size) distribution of the fatty acid metal salt particles has two peaks on a side of smaller size and a side of larger size, respectively. A volume based mean particle diameter of the fatty acid metal salt particles having the peak on the side of smaller size is 3.0 ?m or smaller and a volume based mean particle diameter of the fatty acid metal salt particles having the peak on the side of larger size is larger than a volume based mean particle diameter of the toner mother particles.

Abstract: Provided are an image forming method by which an image in which arbitrary glossiness is adjusted to any section is formed, and an image forming apparatus thereof. It is a feature that an image forming method possesses the steps of forming a gloss adjusting layer possessing a gloss adjusting toner-fixed image formed with a gloss adjusting toner, on an image support, and forming a toner-fixed image obtained from a toner, on the gloss adjusting layer, wherein the gloss adjusting layer possesses an aggregate of gloss adjusting units; the gloss adjusting units each possess a section where the gloss adjusting toner is attached and another section where the gloss adjusting toner is unattached; and a borderline between the section and the another section is a straight line.