Canon Kabushiki Kaisha

Leibniz-institut Fuer Neue Materialien Gemeinnuetzige Gmbh

Leibniz-institut Fur Neue Materialien Gemeinnutzige Gmbh

Mitsutoshi Noguchi

Yoshikazu Saito

Midori Kushida

Norio Ohkuma

Shingo Okushima

Yoichi Takada

Toru Ohnishi

Ryosuke Hirokawa

Etsuko Hino

Carsten Becker-Willinger

Pamela Kalmes

Helmut Schmidt

Tetsuya Kosuge

Mamiko Kaji

Hikaru Ueda

Yuichiro Kanasugi

Tsukasa Sano

Takuto Moriguchi

Takashi Imai

Tadayoshi Inamoto

Takumi Suzuki

Michael Veith

Ryota Takeuchi

A porous layer included in a transfer body for image recording by a heat transfer method has a multiple layer configuration, and porous layers are provided such that when a thickness (mm) of each porous layer from a porous layer P(1) of the plurality of porous layers on a side closest to the surface layer to a porous layer P(n) on a side closest to the substrate is set to t(n) (n&#x2265;2), and a total thickness of the transfer body is set to T (mm), Expression (1): C&#xd7;T&#x2264;t(1)+ . . . +t(n) (here, C=0.4, and T&#x2265;1) is satisfied.

Transfer body, image recording method and image recording apparatus

An ink jet recording method of the present invention includes: forming an ink image by ejecting an ink onto a transfer body with an ink jet head in which a recording element substrate provided with an element generating energy to be used for ejecting the ink, a pressure chamber including the element inside, and an ejection orifice ejecting the ink is provided, and the ink in the pressure chamber is circulated between the pressure chamber and the outside of the pressure chamber; and transferring the ink image onto a recording medium by bringing the recording medium into contact with the transfer body on which the ink image is formed, wherein a viscosity of the ink is 2 mPa&#xb7;s or more to 20 mPa&#xb7;s or less.

Ink jet recording method and ink jet recording apparatus

An ink jet printing apparatus including: an image forming unit which forms an ink image containing an aqueous liquid component and a coloring material, including a reaction solution applying unit and an ink applying unit; and a liquid absorbing unit for absorbing at least a portion of a liquid component from the ink image by bringing a porous body into contact with the ink image, the liquid absorbing unit including a liquid absorbing member having the porous body, wherein the ink applying unit includes a liquid ejection head including a plurality of printing element substrates each having an element which generates energy that is utilized for discharging a liquid, a pressure chamber which has the element in the inside, and a plurality of ejection orifices which discharge a liquid, and the ink is circulated between the inside of the pressure chamber and the outside of the pressure chamber.

Ink jet printing apparatus and ink jet printing method

A liquid ejection apparatus includes a liquid ejection head which is provided with a pressure chamber having, in the inside thereof, an energy-generating element, a transfer body onto which a liquid is ejected through the liquid ejection head to form an image, and a pressing unit which presses a recording medium against the transfer body to transfer the image formed on the transfer body onto the recording medium, wherein the liquid ejection apparatus further includes a heating unit for heating the transfer body during a period from the ejection of the liquid through the liquid ejection head and until the pressing of the recording medium by means of the pressing unit, and the liquid in the pressure chamber in the liquid ejection head is circulated between the pressure chamber and the outside of the pressure chamber.

Liquid ejection apparatus with liquid in pressure chamber in liquid ejection head being circulated between pressure chamber and outside

A transfer member for transfer-type image formation according to the present invention includes, in this order, a heat insulating layer, a heat storage layer and a top layer having an image formation surface, and satisfies Expressions 1 to 6: Expression 1: 0.5&#x2264;t&#x2264;1.5 (trepresents the thickness [mm] of the heat insulating layer), Expression 2: 0.05&#x2264;t&#x2264;0.50 (trepresents the thickness [mm] of the heat storage layer), Expression 3: t&#x2264;0.020 (trepresents the thickness [mm] of the top layer), Expression 4: &#x3bb;&#x2264;0.20 (&#x3bb;represents the thermal conductivity [W/(m&#xb7;K)] of the heat insulating layer), Expression 5: &#x3bb;&#x2265;0.23 (&#x3bb;represents the thermal conductivity [W/(m&#xb7;K)] of the heat storage layer), and Expression 6: C&#x2265;1.52 (Crepresents the volume specific heat [MJ/(m&#xb7;K)] of the heat storage layer).

Transfer member, image-forming method and image-forming apparatus

The transfer member for transfer-type inkjet recording of the present invention is formed so that a surface layer includes an organosiloxane compound having a polyalkylene oxide unit and the contact angle of water and the contact angle of hexadecane on the surface are 85&#xb0; or more and 110&#xb0; or less and 25&#xb0; or more and 50&#xb0; or less, respectively.

Transfer member for transfer-type inkjet recording, inkjet recording method and inkjet recording apparatus

An inkjet recording method of the present invention comprises forming an ink image by ejecting ink on an ejection receiving medium by an inkjet head including a recording element substrate having an energy generation element, a pressure chamber, and an ejection port, wherein the ink is circulated between the inside of the pressure chamber and the outside of the pressure chamber; and removing at least a portion of a liquid component from the ink image by bringing a liquid absorbing member into contact with the ink image, wherein the ink contains 5 to 30 mass % of a water-soluble organic solvent having a bp of 110&#xb0; C. or more, and 50 mass % or more of the water-soluble organic solvent contained in the ink image and having a bp of 110&#xb0; C. or more is removed from the ink image in the removal of at least a portion of a liquid component from the ink image.

Inkjet recording method and inkjet recording apparatus

An inkjet recording apparatus includes an ejection head configured to eject an ink to form an image, a head heater configured to heat the ejection head to a temperature Tand a control unit configured to control the temperature of the ejection head and the temperature at an image forming position by the ejection head. The control unit controls heating of the ejection head by the head heater and the temperature at the image forming position in such a way that the temperature of the ejection head is higher than the temperature at the image forming position.

Inkjet recording apparatus and inkjet recording method

There is provided an intermediate transfer member used in an image forming method including applying a treatment liquid onto an intermediate transfer member, forming an intermediate image by applying an ink onto the intermediate transfer member coated with the treatment liquid so as to form dots having an average diameter of R, and transferring the intermediate image to a recording medium. The intermediate transfer member includes a surface having recessed portions therein. Each recessed portion allows a circle having a diameter of less than the average diameter R of the ink to be present therein. The surface of the intermediate transfer member has a projected area Sand an actual surface area Ssatisfying the relationship 1.1&#x2264;S/S&#x2264;5.

Intermediate transfer member and image forming method

An intermediate transfer body includes a surface layer, an elastic layer, and a heat-insulating layer contiguously in the mentioned order, and the surface layer, the elastic layer, and the heat-insulating layer satisfy the following Equations 1 to 4:(1+2)&#xd7;&#x394;&#x2003;&#x2003;Equation 1:100 MPa&#x2264;1&#x2264;1,000 MPa&#x2003;&#x2003;Equation 2:0.5 MPa&#x2264;2&#x2264;50 MPa&#x2003;&#x2003;Equation 3:&#x3bb;3&#x2264;0.13 W/m&#xb7;K&#x2264;&#x3bb;1&#x2264;&#x3bb;2.&#x2003;&#x2003;Equation 4:

Intermediate transfer body, image recording method, and image forming apparatus

An image recording method includes an intermediate image-forming step of forming an intermediate image by applying an ink to an intermediate transfer body, a temperature adjusting step, and a transfer step of transferring the intermediate image onto a recording medium in this order. The ink contains polymer particles and a surfactant which is at least one selected from a compound represented by general formula (1) and a compound represented by general formula (2). In the temperature adjusting step, a temperature of the intermediate image is adjusted to a temperature higher than or equal to a minimum film-forming temperature of the polymer particles. A temperature of the intermediate image in the transfer step is lower than the minimum film-forming temperature of the polymer particles.

Image recording method

An intermediate transfer member for use in a transfer-type image recording method including the steps of applying an ink to an intermediate transfer member to form an intermediate image and transferring the intermediate image to a recording medium. The intermediate transfer member includes a surface layer part onto which an ink is applied, the surface layer part containing an organic siloxane compound having a siloxane bond and a polyalkylene oxide unit.

Intermediate transfer member, image recording apparatus, and image recording method

Provided an intermediate transfer member for use in an image forming method including: (1) applying a liquid for reducing fluidity of ink onto the intermediate transfer member; (2) forming an image by applying the ink onto the intermediate transfer member on which the liquid for reducing the fluidity of the ink is applied; and (3) transferring the image onto a recording medium, the intermediate transfer member including: a base; and an elastic layer formed on the base, the elastic layer including: a stack of a first layer being an outer layer and having a plurality of protrusions formed on a surface thereof; and a second layer located below the first layer, an elastic modulus (E1) [MPa] of the first layer and an elastic modulus (E2) [MPa] of the second layer satisfying a relationship of (E1&#x2212;E2)&#x2267;5 [MPa].

Intermediate transfer member, method of manufacturing the same, and image forming method

There is provided an intermediate transfer member used in an image forming method including applying a treatment liquid onto an intermediate transfer member, forming an intermediate image by applying an ink onto the intermediate transfer member coated with the treatment liquid so as to form dots having an average diameter of R, and transferring the intermediate image to a recording medium. The intermediate transfer member includes a surface having recessed portions therein. The surface of the intermediate transfer member has a projected area Sand an actual surface area Ssatisfying the relationship 1.1&#x2266;S/S&#x2266;5.

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Kawaguchi, Japan

Mitsutoshi Noguchi