Fujifilm Business Innovation Corp.

Fuji Xerox Co., Ltd.

Satomi Kashiwagi

Yoshifumi Iida

Takeshi Iwanaga

Takashi Hasegawa

Satoshi Inoue

Sakae Takeuchi

Takahiro Ishizuka

Yuko Iwadate

Satoshi Kamiwaki

Takashi Imai

Kenji Yao

Sumiaki Yamasaki

Takako Kobayashi

Tetsuya Taguchi

Susumu Yoshino

Hirokazu Hamano

Hideaki Yoshikawa

Masaki Hirakata

Fumiaki Mera

Masahiro Oki

Nobuyuki Torigoe

Yoichi Kigoshi

Kazusei Yoshida

Ayu Naito

Shota Matoba

Yuka Zenitani

Kenji Kajiwara

Shigeru Seitoku

Kiyohiro Yamanaka

Hideya Katsuhara

Hajime Sugahara

Tatsuki Sano

Sachiko Nishioka

A cellulosic particle contains cellulose as its base constituent, and the intensity of sodium fluorescent x-rays from the cellulosic particle measured by x-ray fluorescence analysis is 0.015 kps or more and 0.1 kps or less.

Cellulosic particle

A resin composition contains a biodegradable resin and cellulose particles that have a sphericity of 0.9 or more.

Resin composition and resin molded body

A pressure sensitive adhesive particle includes a styrene resin; and a (meth)acrylate resin, wherein the (meth)acrylate resin contains two kinds of (meth)acrylates as a polymerization component in which the weight proportion of the (meth)acrylate to the total polymerization components is 90% by weight or more, and has two glass transition points in which a difference between the lowest glass transition temperature and the highest glass transition temperature is 30° C. or higher.

Pressure sensitive adhesive particle and method of producing printed matter

A cellulosic particle contains cellulose as its base constituent, and the percentage water absorption of the cellulosic particle measured by method B in ISO 15512:1999 is 11% or more and 20% or less.

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 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.

A pressure sensitive adhesive particle includes a pressure sensitive adhesive base particle that contains a styrene resin containing styrene and a vinyl monomer other than styrene as polymerization components, and a (meth)acrylate resin containing at least two (meth)acrylates as polymerization components, in which a mass ratio of the (meth)acrylates relative to a total of polymerization components of the (meth)acrylate resin is 90 mass % or more; and an external additive. The pressure sensitive adhesive particle has a surface having an arithmetic average roughness Ra within a range of 0.005 μm to 0.100 μm. The pressure sensitive adhesive particle has at least two glass transition temperatures, and the difference between the lowest glass transition temperature and the highest glass transition temperature among the glass transition temperatures of the pressure sensitive adhesive particle is 30° C. or more.

Pressure sensitive adhesive particles, method for producing printed material, and printed material

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.

A method for forming a printed material includes forming an image on a recording medium; applying particles to a surface of the recording medium, the surface having the image formed thereon; heating the particles applied to the recording medium; and pressurizing, in a thickness direction, a multilayer body obtained by folding the recording medium so that the heated particles are sandwiched between flaps of the recording medium or a multilayer body obtained by placing another medium on top of the recording medium with the heated particles therebetween. The particles contain a styrene resin and a (meth)acrylic acid ester resin. The (meth)acrylic acid ester resin contains two (meth)acrylic acid ester monomer units, and a mass ratio of the (meth)acrylic acid ester monomer units relative to a total of polymerization components is 90 mass % or more.

Method for forming printed material and system for forming printed material

A method for producing a printed material includes providing pressure-induced phase transition particles to a part of an outside margin portion or a portion to be folded of a recording medium; bonding the pressure-induced phase transition particles to the recording medium; and pressure-bonding a multilayer body in which plural recording media are stacked, the recording media including the recording medium having the pressure-induced phase transition particles bonded thereon.

Method for producing printed material and system for producing printed material

Electrophotographic photoreceptor including a conductive substrate, an organic photosensitive layer on an outer peripheral surface of the conductive substrate, and an inorganic protective layer on an outer peripheral surface of the organic photosensitive layer, the inorganic protective layer containing gallium and oxygen. A volume resistivity of an inner region of the inorganic protective layer, the inner region extending 0.2 &#x3bc;m or about 0.2 &#x3bc;m from an inner peripheral surface of the inorganic protective layer in a thickness direction, and a volume resistivity of an outer region of the inorganic protective layer, the outer region extending 0.2 &#x3bc;m or about 0.2 &#x3bc;m from an outer peripheral surface of the inorganic protective layer in the thickness direction, are both 6.0&#xd7;10&#x3a9;&#xb7;cm or more and 4.0&#xd7;10&#x3a9;&#xb7;cm or less or about 6.0&#xd7;10&#x3a9;&#xb7;cm or more and about 4.0&#xd7;10&#x3a9;&#xb7;cm or less.

Electrophotographic photoreceptor and image forming apparatus

An electrophotographic photoreceptor includes an electroconductive substrate, an organic photosensitive layer on the electroconductive substrate and an inorganic protective layer on the organic photosensitive layer, wherein a layer that forms a surface of the organic photosensitive layer contains a charge transporting material, a binder resin, and a silica particle; the inorganic protective layer contains a group 13 element, an oxygen atom, and a hydrogen atom; a sum of element constitution ratios of the group 13 element, the oxygen atom, and the hydrogen atom to all elements constituting the inorganic protective layer is equal to or more than 90 atomic %; and an element composition ratio (oxygen atom/group 13 element) of the oxygen atom and the group 13 element is 1.0 or more and less than 1.5.

Electrophotographic photoreceptor, process cartridge, and image forming apparatus

An image forming apparatus includes an electrophotographic photoreceptor that includes a conductive substrate, an organic photosensitive layer provided on the conductive substrate, and an inorganic protective layer provided on the organic photosensitive layer; a charging unit that charges a surface of the electrophotographic photoreceptor; an electrostatic latent image forming unit that forms an electrostatic latent image on a charged surface of the electrophotographic photoreceptor; a developing unit that develops the electrostatic latent image formed on the surface of the electrophotographic photoreceptor to thereby form a toner image, by using a developer which contains a toner, and a carrier in which a ratio occupied by carrier particles having a particle diameter of 50 &#x3bc;m or greater is equal to or smaller than 1% by number; and a transfer unit that transfers the toner image to a surface of a recording medium.

Growing community of inventors

Kanagawa, Japan

Satomi Kashiwagi