Sumitomo Riko Company Limited

Panasonic Intellectual Property Management Co., Ltd.

Daisuke Inoue

Hideyuki Hashimoto

Yasuyuki Hayasaki

Takeru Horiuchi

Yosuke Hayashi

Kouji Sinzaki

Daiki Ito

Yasuhide Watanabe

Yuma Yoshida

Manabu Sakuda

Koji Morihara

Fumio Misumi

Hironari Nishioka

Sho Sakamoto

Yutaro Yamada

Koki Matsuoka

Isamu Maruyama

Shingo Nakaichi

The disclosure provides a flexographic printing original plate which comprises an adhesive layer that exhibits excellent solvent resistance and excellent adhesion to a supporting body. The disclosure provides a flexographic printing original platewhich sequentially comprises, on a surface of a supporting body, an elastic layerand an adhesive layer, wherein the supporting bodycontains a polyester resin and the adhesive layercontains the components (a), (b) and (c) described below. (a) a polyester resin (b) an isocyanate compound (c) a xylene resin which has a melting point or softening point of 100° C. or less.

Flexographic printing original plate

A conveying belt has a cylindrical base layer, and a surface layer that is formed on the outer peripheral surface of the base layer. The base layer contains polyimide or polyamide-imide, and has an elastic modulus from 3-7 GPa, inclusive. The surface layer is configured as a cured object from a resin composition that contains a fluororesin having a hydroxy group, an isocyanate curing agent, and a silicone copolymer. The silicone copolymer is a copolymer containing a silicone unit and another kind of unit not having a siloxane skeleton, has a hydroxy group, and contains siloxane units in a proportion of at least 95 mol % and less than 100 mol %, or from 40-70 mol %, inclusive. The silicone copolymer content in the resin composition is 1-5 parts by mass, inclusive, relative to a total 100 parts by mass of the fluororesin and the isocyanate curing agent.

Conveying belt

Provided is a flexographic printing plate precursor which can suppress chipping of relief images while maintaining printing properties. The flexographic printing plate precursor () includes a photosensitive layer () which includes (A) a water-dispersed latex, (B) a millable rubber, (C) a surfactant, (D) photopolymerizable compounds, and (E) a photopolymerization initiator, the (D) including the following (d1) to (d3). (d1) is a photopolymerizable compound of a chain structure having no cyclic structure, (d2) is a monofunctional photopolymerizable compound having a cyclic structure, and (d3) is a bifunctional photopolymerizable compound having a cyclic structure.

Flexographic printing plate precursor

To provide a conductive roll for an electrophotographic apparatus that includes a conductive rubber elastic body layer having a lower hardness and lower settling properties than a conventional conductive rubber elastic body layer. A conductive rollfor an electrophotographic apparatus includes a shaft bodyand a conductive rubber elastic body layerprovided on the outer periphery of the shaft bodythe conductive rubber elastic body layercontaining polar rubber, non-polar rubber, and a dispersing agent, wherein the polar rubber is at least one of nitrile rubber, hydrin rubber, and chloroprene rubber, wherein the non-polar rubber is at least one of isoprene rubber, hydrogenated isoprene rubber, and natural rubber, and wherein the dispersing agent is at least one of a polymer containing a block made of a nitrile rubber component and a block made of an isoprene rubber component, modified natural rubber, and modified isoprene rubber.

Conductive member for electrophotographic apparatus

A centrifugal fan includes a casing side plate with a casing inlet, a spiral scroll, a tongue, a casing outlet, a main plate, a retaining ring, multiple blades arranged between the main plate and the retaining ring, and an air-intake space surrounded by the blades. The centrifugal fan further includes an airflow accelerator in the air-intake space for increasing an airflow speed of a gas toward the blades.

Centrifugal fan and fan with sound-muffling box having the centrifugal fan built-in

Growing community of inventors

Aichi, Japan

Daisuke Inoue