Fuji Xerox Co., Ltd.

Fujifilm Business Innovation Corp.

Nissan Motor Company Limited

Tsuyoshi Murakami

Kana Yoshida

Atsushi Sugawara

Satoshi Yoshida

Masaki Iwase

Yukiaki Nakamura

Shinya Sakamoto

Eisuke Iwazaki

Asafumi Fujita

Kotaro Yoshihara

Satoshi Inoue

Tomoaki Tanaka

Teppei Yawada

Satoshi Kamiwaki

Tsutomu Furuta

Yasuo Matsumura

Sumiaki Yamasaki

Yutaka Saito

Shuji Sato

Sakon Takahashi

Akihiro Iizuka

Tetsuya Taguchi

Akira Matsumoto

Yosuke Tsurumi

Koji Sasaki

Hirokazu Hamano

Masahiro Takagi

Satoshi Miura

Fusako Kiyono

Noriyuki Mizutani

Moegi Iguchi

Yasuaki Hashimoto

Yuka Yamagishi

Mona Tasaki

Ryutaro Kembo

Soutaro Kakehi

Takahiro Yamashita

Yuki Takamiya

Hidefumi Mihara

Kai Takeuchi

Yoichi Kaku

A white toner includes a toner particle that contains a binder resin containing a hybrid resin in which an amorphous resin unit and a crystalline polyester resin unit are chemically bonded to each other, surface-treated titanium oxide, and a release agent, in which a proportion of Al atoms in a surface of the surface-treated titanium oxide is 3 atomic % or greater and 20 atomic % or less, and a proportion of Ti atoms in the surface is 5 atomic % or greater and 15 atomic % or less.

White toner, electrostatic charge image developer, and toner cartridge

A green toner for electrostatic charge image development includes green toner particles containing a binder resin, an azomethine fluorescent pigment having an emission peak in a wavelength region of 500 nm or more and 550 nm or less in an emission spectrum, and a non-fluorescent pigment having a reflection peak in a wavelength region of 480 nm or more and 540 nm or less in a reflection spectrum, wherein a mass proportion of the azomethine fluorescent pigment in the green toner particles is 3% by mass or more and 10% by mass or less and a mass ratio M1/M2 of a content M1 of the azomethine fluorescent pigment to a content M2 of the non-fluorescent pigment is 1 or more and 5 or less; and oil-treated silica particles externally added to the green toner particles.

Green toner for electrostatic charge image development, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

A white toner includes a toner particle that contains a binder resin, a release agent, and titanium oxide, at least a part of the titanium oxide being present in a release agent domain, in which in observation of a cross section of the toner particle, an average major axis length Dt of the toner particle, an average major axis length Dw of the release agent domain, and an average major axis length Dp of the titanium oxide in the release agent domain satisfy Expressions (1) and (2).2×≤10×  Expression (1):0.1×≤0.5×  Expression (2).

A photoluminescent toner includes a photoluminescent toner particle that contains a binder resin, a release agent, and a photoluminescent pigment and has a release agent domain, and a silicone oil-treated silica particle that is externally added to the photoluminescent toner particle, in which in observation of a cross section of the photoluminescent toner particle, an average major axis length Dw of the release agent domain and an average major axis length Dp of the photoluminescent pigment satisfy Expression (1).0.3≤≤1.0  Expression (1):

Photoluminescent toner, electrostatic charge image developer, and toner cartridge

A method for producing a circuit board includes providing a substrate on which a toner image formed of a thermoplastic toner has been formed and forming a conductive foil layer having a thickness of 0.1 μm to 2 μm on the toner image that has been formed on the substrate and then applying heat to the toner image and the conductive foil layer to form a wire constituted by conductive foil.

Circuit board producing apparatus

A white toner for electrostatic image development contains white toner particles that contain a binder resin and a white pigment and satisfy condition 1 below:

White toner for electrostatic image development, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, image forming method, toner set for electrostatic image development, and electrostatic image developer set

A method for producing a circuit board includes providing a substrate on which a toner image formed of a thermoplastic toner has been formed and forming a conductive foil layer having a thickness of 0.1 &#x3bc;m to 2 &#x3bc;m on the toner image that has been formed on the substrate and then applying heat to the toner image and the conductive foil layer to form a wire constituted by conductive foil.

Method for producing circuit board and method for producing integrated circuit including the same

A resin particle set includes a fluorescent color resin particle containing a fluorescent coloring agent; and a colored resin particle containing a colored coloring agent, wherein a volume average particle diameter of the fluorescent color resin particles is larger than a volume average particle diameter of the colored resin particles, and an average circularity of the fluorescent color resin particles is 0.93 or more.

Resin particle set

A toner for developing an electrostatic image includes toner particles that each include a binder resin and a release agent. The ratio B/A of a half-width B of an exothermic peak Tc resulting from the release agent which is determined in a first cooling step by differential scanning calorimetry to a half-width A of an endothermic peak Tm resulting from the release agent which is determined in a first heating step prior to the first cooling step by differential scanning calorimetry is 1.5 or more and 4 or less.

Toner for developing electrostatic image, electrostatic-image developer, and toner cartridge

An image forming apparatus includes an image holding member; a charging unit that charges the surface of the image holding member; an electrostatic charge image forming unit that forms an electrostatic charge image on the charged surface of the image holding member; a developing unit that has an electrostatic charge image developer and that develops the electrostatic charge image on the surface of the image holding member with the electrostatic charge image developer to form a toner image; a transfer unit that transfers the toner image formed on the surface of the image holding member to a recording medium; and a fixing unit that includes a fixing belt that comes into contact with the toner image transferred to the recording medium, a rotational member that is disposed in contact with the outer surface of the fixing belt and that forms a contact area between the fixing belt and the rotational member, and a heat source that is disposed so as to face the inner surface of the fixing belt to directly heat the fixing belt, wherein the electrostatic charge image developer contains a toner that has a temperature Tat a storage modulus of G'=1&#xd7;10Pa and a temperature Tat a storage modulus of G&#x2032;=1&#xd7;10Pa and that satisfies a condition 1 and a condition 2, and the recording medium having the transferred toner image passes through the contact area to fix the toner image to the recording medium1.215&#x2264;&#x2264;1.365&#x2003;&#x2003;Condition 1:50&#xb0; C.&#x2264;&#x2264;68&#xb0; C.&#x2003;&#x2003;Condition 2:

Image forming apparatus and method for forming image

A white toner for electrostatic image development includes white toner particles containing a binder resin and a white pigment. When in a circularity distribution of the white pigment determined by sectional observation of the white toner particles, the cumulative 10% circularity from the smaller side is C10, and the cumulative 50% circularity is C50, the following formula (1) and formula (2) are satisfied.0.900&#x2264;50&#x2264;1.000&#x2003;&#x2003;Formula (1):1.00&#x2264;50/10&#x2264;1.13&#x2003;&#x2003;Formula (2):

White toner for electrostatic image development, electrostatic image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

An electrostatic charge image developing toner includes: a toner particle and a strontium titanate particle that is externally added to the toner particle, in which an average primary particle diameter of the strontium titanate particle that is present on a surface of the toner particle is 30 nm or more and 100 nm or less, and average primary particle circularity is 0.82 or more and 0.94 or less, and in which circularity that becomes 84% of accumulation of the primary particle is greater than 0.92.

Electrostatic charge image developing toner and electrostatic charge image developer

An electrostatic charge developing toner includes a toner particle that includes a pigment particle having a surface aluminum proportion by an X-ray photoelectron spectroscopy of 6.0 atom % or more and 12.0 atom % or less and a binder resin having a carboxy group.

Electrostatic charge image developing toner, electrostatic charge image developer, and toner cartridge

An electrostatic charge image developing toner includes toner particles containing a binder resin and a white pigment, wherein, in a particle size distribution of a maximum Feret diameter of particles of the white pigment present in the toner particle, a ratio of particles of the white pigment having a maximum Feret diameter of 200 nm or more and less than 400 nm is 50% by number or more with respect to the entire particles of the white pigment, and a maximum value of a frequency with respect to particles of the white pigment having a maximum Feret diameter of 650 nm or more and less than 1,000 nm is larger than a minimum value of a frequency with respect to particles of the white pigment having a maximum Feret diameter of 500 nm or more and less than 650 nm.

An electrostatic charge image developing toner includes toner particles including a binder resin and a white pigment, wherein a maximum frequent value in distribution of eccentricity B of the white pigment represented by the following Expression (1) is from 0.75 to 0.95, and a skewness in the distribution of the eccentricity B is from &#x2212;1.20 to 0.00: Expression (1): eccentricity B=2d/D, wherein D represents an equivalent circle diameter (&#x3bc;m) of a toner particle in observation of the cross section of the toner particle, and d represents a distance (&#x3bc;m) from the centroid of the toner particle to the centroid of the white pigment in observation of the cross section of the toner particle.

Growing community of inventors

Kanagawa, Japan

Tsuyoshi Murakami