Fuji Xerox Co., Ltd.

Fujifilm Business Innovation Corp.

Mitsubishi Chemical Corporation

Takako Kobayashi

Yoshihiro Inaba

Daisuke Yoshino

Akira Imai

Koji Horiba

Masahiro Oki

Hiroyuki Moriya

Chisato Urano

Ryosaku Igarashi

Yoshifumi Iida

Hirotaka Matsuoka

Takashi Hasegawa

Ken Hashimoto

Hiroshi Yamamoto

Satoshi Inoue

Sumiaki Yamasaki

Takahiro Ishizuka

Masato Mikami

Satomi Kashiwagi

Takeshi Iwanaga

Mieko Seki

Satoshi Kamiwaki

Kiyohiro Yamanaka

Yoshitake Ogura

Hisae Yoshizawa

Satoshi Tatsuura

Yuki Suzuki

Fumiaki Mera

Yutaka Sugizaki

Keitaro Mori

Yutaka Nogami

Kentaro Ageishi

Yutaka Kurose

Masahiro Takamatsu

Hidehiko Soyama

Shuuichi Maeda

Yuko Ohkijima

A particle set for producing a printed matter includes: a chromatic color toner containing toner particles A; and pressure-responsive particles containing base particles B, in which the base particles B contain a styrene resin containing, as polymerization components, styrene and a vinyl monomer other than styrene, and a (meth)acrylate resin containing, as a polymerization component, a (meth)acrylate, a mass ratio of the styrene resin to the (meth)acrylate resin (styrene resin:(meth)acrylate resin) is 80:20 to 20:80, a difference between the lowest glass transition temperature and the highest glass transition temperature of the pressure-responsive particles is 30° C. or more, and when the toner particles A have a volume average particle diameter D50A and the base particles B have a volume average particle diameter D50B, the D50A and the D50B satisfy formula 1-1: 1.5 μm<(D50B−D50A).

Particle set for producing printed matter, apparatus for producing printed matter, and method for producing printed matter

Pressure-responsive particles include pressure-responsive base particles and first inorganic oxide particles, in which the pressure-responsive base particles contain a styrene-based resin which contains styrene and other vinyl monomers as polymerization components and a (meth)acrylic acid ester-based resin which contains at least two kinds of (meth)acrylic acid esters as polymerization components and in which a mass ratio of the (meth)acrylic acid esters to all polymerization components is 90% by mass or higher, Db/Da which is a ratio of a number average particle diameter Db of the first inorganic oxide particles to a number average particle diameter Da of the pressure-responsive base particles is 0.05 or higher and 0.25 or lower, the pressure-responsive particles have at least two glass transition temperatures, and a difference between a lowest glass transition temperature and a highest glass transition temperature is 30° C. or higher.

Pressure-responsive particles, cartridge, apparatus for manufacturing printed matter, method for manufacturing printed matter, printed matter, sheet for manufacturing printed matter, and method for manufacturing sheet for manufacturing printed matter

Pressure-responsive particles include pressure-responsive base particles and resin particles, in which the pressure-responsive base particles contain a styrene-based resin that contains styrene and other vinyl monomers as polymerization components and a (meth)acrylic acid ester-based resin that contains at least two kinds of (meth)acrylic acid esters as polymerization components, a ratio of a mass of the (meth)acrylic acid esters to a total mass of polymerization components is 90% by mass or more in the (meth)acrylic acid ester-based resin, the pressure-responsive particles have at least two glass transition temperatures, a difference between a lowest glass transition temperature and a highest glass transition temperature is 30° C. or higher, and a ratio of a mass of the resin particles to a total mass of the pressure-responsive particles is 0.05% by mass or more and 2.0% by mass or less.

Pressure-responsive particles, cartridge, apparatus for manufacturing printed matter, method for manufacturing printed matter, and printed matter

Pressure-responsive particles include pressure-responsive base particles and silica particles, in which the pressure-responsive base particles contain a styrene-based resin that contains styrene and other vinyl monomers as polymerization components and a (meth)acrylic acid ester-based resin that contains at least two kinds of (meth)acrylic acid esters as polymerization components and in which a ratio of a mass of the (meth)acrylic acid esters to a total mass of polymerization components is 90% by mass or more, the pressure-responsive particles have at least two glass transition temperatures, a difference between a lowest glass transition temperature and a highest glass transition temperature is 30° C. or higher, and a ratio of a surface coating rate Cs2 by the silica particles after application of the following first stress to a surface coating rate Cs1 by the silica particles before application of stress satisfies a relationship of 0.4≤Cs2/Cs1≤0.8.

Pressure-responsive particles, cartridge, and apparatus for manufacturing printed matter

Pressure-responsive particles include pressure-responsive base particles and fatty acid metal salt particles, in which the pressure-responsive base particles contain a styrene-based resin which contains styrene and other vinyl monomers as polymerization components and a (meth)acrylic acid ester-based resin which contains at least two kinds of (meth)acrylic acid esters as polymerization components and in which amass ratio of the (meth)acrylic acid esters to all polymerization components is 90% by mass or higher, the pressure-responsive particles have at least two glass transition temperatures, and a difference between the lowest glass transition temperature and the highest glass transition temperature is 30° C. or higher.

Pressure-responsive particles include pressure-responsive base particles and inorganic oxide particles, in which the pressure-responsive base particles contain a styrene-based resin which contains styrene and other vinyl monomers as polymerization components and a (meth)acrylic acid ester-based resin which contains at least two kinds of (meth)acrylic acid esters as polymerization components and in which amass ratio of the (meth)acrylic acid esters to all polymerization components is 90% by mass or higher, a liberation rate of the inorganic oxide particles is 10% by mass or higher and 40% by mass or lower, the pressure-responsive particles have at least two glass transition temperatures, and a difference between a lowest glass transition temperature and a highest glass transition temperature is 30&#xb0; C. or higher.

Provided is a solution for forming a surface protective resin member, containing: a fluorine-containing acrylic resin having a hydroxyl value of 40 to 280; a fluorine-free acrylic resin having a hydroxyl value of 40 to 280; and a polyether polyol or a polyester polyol.

Solution for forming surface protective resin member, solution set for forming surface protective resin member, and surface protective resin member

A liquid developer includes a carrier liquid and a toner including a urethane-modified acrylic resin.

Liquid developer and developer cartridge

A liquid developer includes a carrier liquid and a toner particle whose surface is treated by a polyamine, wherein an amount of sodium ion to be eluted in 1 g of the toner particles is 0.04 mg or less.

Liquid developer, developer cartridge, and image forming apparatus

A liquid developer contains a carrier liquid and a toner particle which contains a binder resin, wherein the toner particles have a content of aluminum measured by fluorescent X-ray analysis in a range of from 0.04% by weight to 0.1% by weight of total elements.

A positively chargeable toner includes at least a binder resin, and toner particles of which surfaces are modified by a polyvinylamine compound.

Positively chargeable toner, liquid developer, developer, developer cartridge, process cartridge, and image forming method

A liquid developer includes a carrier liquid, and a toner particle which contains a resin having an unsaturated double bond, a compound represented by the formula (I) and a photopolymerization initiator and whose surface is treated by a polyamine, wherein m and n each independently represent an integer of 1 to 10,000; m+n represents an integer of 10 to 10,000; and R, R, and Reach independently represent a single bond or a divalent aliphatic hydrocarbon group having 1 to 12 carbon atoms.

An electrostatic charge image developing toner includes a toner particle that contains a binder resin and is surface-modified by a polymer obtained by polymerizing a monomer containing dicyandiamide and diethylenetriamine, wherein toner particles have positive charging properties.

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

An image forming apparatus includes an electrostatic latent image holding member, a charging device, a latent image forming device, a developing device that stores a liquid developer containing a toner and a non-volatile carrier liquid, and develops the electrostatic latent image formed on the surface of the electrostatic latent image holding member by the liquid developer to form a toner image, a transfer device that transfers the toner image onto a surface of an impermeable recording medium, and a fixing device, wherein when the SP value of the toner is set as SP(t), the SP value of the non-volatile carrier liquid is set as SP(c), and the SP value of the recording medium is set as SP(m), an absolute value of a difference between SP(t) and SP(c) is from 1.5 to 7.0 and the following relational expression (A) is satisfied:|()&#x2212;()|&#x3e;|()&#x2212;()|.&#x2003;&#x2003;Relational expression (A)

Image forming apparatus using a developer with a solubility parameter

A liquid developer includes a carrier liquid having silicone oil, and toner particles including a polyester resin and having a value of ammonium ions contained therein measured by underwater extraction in a range of 0.005 ppm to 1 ppm.

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Kanagawa, Japan

Takako Kobayashi