Fuji Xerox Co., Ltd.

Fujifilm Business Innovation Corp.

Soichiro Kitagawa

Shinpei Takagi

Tomohiro Shinya

Hiroyuki Tanaka

Hideo Maehata

Noriyuki Mizutani

Shinya Sakamoto

Susumu Yoshino

Hirokazu Hamano

Masaru Takahashi

Moegi Iguchi

Kiyohiro Yamanaka

Satoshi Yoshida

Akira Matsumoto

Katsumi Daimon

Takahiro Ishizuka

Yosuke Tsurumi

Yusuke Ikeda

Shunsuke Nozaki

Yuka Ishihara

Suguru Nakaso

Tatsuki Sano

Naomi Miyamoto

Yosuke Tsurmi

A resin molded product contains a resin and hollow particles each having a shell layer containing a silsesquioxane represented by the following formula (RSiO)wherein R represents an alkyl group having 1 or more and 3 or less carbon atoms, a phenyl group, or a vinyl group, and n is an integer of 7 or more and 150 or less.

Resin molded product and resin composition

A particle dispersion liquid includes: an aqueous medium; at least one of a compound represented by Formula (I) and a compound represented by Formula (II), which is dispersed in the aqueous medium; and at least one of: (i) a polymer having alkyl (meth) acrylate as a structural unit, the alkyl (meth) acrylate containing an alicyclic hydrocarbon group having a bridged bond, the polymer having an acid value ranging from 6 mgKOH/g to 100 mgKOH/g, and (ii) a polyester resin containing 20% by mass or more of a unit represented by Formula (F1) in the polyester.

Particle dispersion liquid, aqueous ink, ink cartridge, recording apparatus, and recording method

An electrostatic charge image developing toner includes toner particles containing an amorphous resin and a crystalline resin, wherein when a softening temperature is measured at 30 points in surface layer parts of the toner particles, a difference (T(&#xb0; C.)&#x2212;T(&#xb0; C.)) between a maximum value (T(&#xb0; C.)) and a minimum value (T(&#xb0; C.)) out of the softening temperatures at the 30 points is from 25&#xb0; C. to 100&#xb0; C.

Electrostatic charge image developing toner and toner container

An electrostatic charge image developing toner includes an unsaturated polyester resin that contains a structural unit derived from a dicarboxylic acid component having an ethylenically unsaturated bond and a structural unit derived from a dialcohol component having a rosin ester group, wherein a surface layer portion of the toner contains a crosslinked material of the unsaturated polyester resin.

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

An electrostatic charge image developing toner includes toner particles having a core that includes a block copolymer of a crystalline polyester block and an amorphous polyester block, and a shell that covers the core and includes an amorphous polyester resin having an ethylenically unsaturated double bond, and of which a surface layer part includes a crosslinked product of the amorphous polyester resin having an ethylenically unsaturated double bond.

Electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

An electrostatic charge image developing toner is provided which includes a core particle that contains an amorphous polyester resin and a colorant; and a shell layer that covers the core particle and contains a polystyrene resin, wherein a softening temperature Ma of the shell layer and a softening temperature Mb of the core particle satisfy a relationship of 10&#xb0; C.&#x2266;Ma-Mb&#x2266;45&#xb0; C.

Electrostatic charge image developing toner, method of manufacturing electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, and image forming method

Provided is an electrostatic charge image developing toner, each toner particle including a core portion, a first shell layer, and a second shell layer, wherein the core portion contains a first polyester resin, a colorant, and a release agent, the first shell layer contains a second polyester resin and covers the core portion, the second shell layer contains a polymer of an aromatic vinyl monomer and a third polyester resin having an ethylenic unsaturated double bond that is polymerizable with the aromatic vinyl monomer, and covers the first shell layer, and a total amount of the first shell layer and the second shell layer is within a range of from 16% by weight to 40% by weight of the toner particle.

Electrostatic charge image developing toner and manufacturing method thereof, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming method

A toner for developing an electrostatic image, contains a binder resin having an acid value of from approximately 10 mgKOH/g to approximately 20 mgKOH/g and carbon black having a surface carboxyl group density of from approximately 2&#xd7;10mol/m to approximately 8&#xd7;10mol/m, and is prepared in an aqueous medium.

Toner for developing electrostatic image, method for preparing toner for developing electrostatic image, developer for electrostatic image, toner cartridge, process cartridge, image forming method, and image forming apparatus

The invention provides an image formation apparatus having at least a first toner image-forming unit that forms a first toner image which directly contacts a surface of a recording medium, a second toner image-forming unit that forms a second toner image which is disposed on the first toner image without directly contacting the recording medium, and a fixing unit. The invention further provides a printed item having at least a recording medium, a first toner image directly contacting a surface of the recording medium, and a second toner image residing on the first toner image without directly contacting the recording medium. A contact angle &#x3b8;of the first toner and the first toner image with respect to an aqueous de-inking solution, is smaller than a contact angle &#x3b8;of the second toner and the second toner image with respect to the aqueous de-inking solution.

Image formation apparatus and printed item

A toner for developing electrostatic images, comprising a binder resin and a colorant, the binder resin including a crystalline polyester resin and an amorphous resin. When, in differential scanning calorimetry of the toner according to ASTM D3418-8, the temperature of the endothermic peak derived from the crystalline polyester resin in a first heating process is defined as Tm1 (&#xb0; C.), the endothermic quantity based on the endothermic peak in the first heating process is defined as &#x394;H1 (mW/g), and the endothermic quantity based on the endothermic peak in a second heating process is defined as &#x394;H2 (mW/g), Tm1 is 50 to 80&#xb0; C., and &#x394;H1 and &#x394;H2 satisfy the relationship represented by the following Formula (1). When the softening temperature of the toner is defined as T(&#xb0; C.), Tfis 85 to 135&#xb0; C. Tm1 and Tsatisfy the relationship represented by the following Formula (2):0.35&#x2266;&#x394;2/&#x394;1&#x2266;0.95&#x2003;&#x2003;Formula (1)&#x2266;205&#x2212;(1.4&#xd7;1)&#x2003;&#x2003;Formula (2).

Toner for developing electrostatic images, electrostatic image developer, and image-forming method

An electrophotographic toner that includes a colorant, a release agent, a non-crystalline resin and a crystalline resin, wherein the crystalline resin is a polyalkyl acrylate or polyalkyl methacrylate having an alkyl group of approximately 18 or more carbon atoms, and is produced by copolymerization with approximately 10 mol % or more, but no more than approximately 50 mol %, of a vinyl monomer having a carboxyl group.

Electrophotographic toner and electrophotographic developer and image forming method

A toner for electrostatic charge developing prepared by a production method including aggregating one or more kind of particles in a raw material dispersion including the particles to form aggregated particles, and coalescing the aggregated particles by heating. At least one kind of the particles is resin particles including an amorphous polyester resin synthesized by copolymerizing one or more polyvalent carboxylic acids and two or more polyhydric alcohols; at least one of the polyvalent carboxylic acids is polyvalent carboxylic acid having a sulfonic acid group; two of the polyhydric alcohols are an ethylene oxide adduct of bisphenol A and a propylene oxide adduct of bisphenol A; and the following equation is satisfied:10/90&#x2266;()/()&#x2266;90/10. In the equation, BPA(EO) represents a total mole amount of the ethylene oxide adduct of bisphenol A used in synthesis of the amorphous polyester resin, and BPA(PO) represents a total mole amount of the propylene oxide adduct of bisphenol A used in synthesis of the amorphous polyester resin.

Toner for electrostatic charge developing, production method thereof, developer for electrostatic charge developing using the same, and image forming method

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Kanagawa, Japan

Soichiro Kitagawa