Canon Kabushiki Kaisha

Ryohei Goto

Kazuhiro Yamada

Fumihiro Goto

Toru Ohnishi

Toshimori Miyakoshi

Ryosuke Hirokawa

Yohei Iwasaki

Hiroaki Motooka

Shuzo Iwanaga

Akihiro Mouri

Atsushi Sakamoto

Toru Yamane

Noboru Toyama

Takatsugu Moriya

Takumi Otani

Kyosuke Deguchi

Tomoko Suzuki

Susumu Hirosawa

Satoshi Masuda

Zentaro Tamenaga

Yoshiyuki Honda

Kanako Soma

A printed material of the present invention is a printed material including a recording medium, a color material layer, and a fine irregular layer functioning as an outermost layer in this order; the color material layer contains a pigment; the fine irregular layer contains spherical particles having a specific average particle diameter; the spherical particles are present in a thickness direction of the fine irregular layer; and the surface of the fine irregular layer has convex portions having an average height of 0.04 to 0.15 &#x3bc;m and an image definition C(2) is 50% or more.

Printed material, image recording method, and image recording apparatus

An ink jet recording method of the present invention includes a fixing step under the following condition (1) or (2) when on a recording medium, an image including an image part formed of colored ink and an image part formed of transparent ink is fixed:1&#x3e;MFT1&#x3e;MFT2 and MFT1&#x3e;2&#x3e;MFT2&#x2003;&#x2003;(1)1&#x3e;MFT2&#x3e;MFT1 and MFT2&#x3e;2&#x3e;MFT1.&#x2003;&#x2003;(2)MFT1: Minimum film forming temperature of colored inkMFT2: Minimum film forming temperature of transparent inkT1: Temperature of fixing member when image is heated and pressedT2: Temperature of fixing member when image is separated from fixing member.

Ink jet recording method

An ink jet recording method of the present invention includes a step of applying a reaction liquid onto a transfer body, an ink image forming step, a liquid removing step of bringing a porous body of a liquid absorbing member into contact with the ink image on the transfer body to remove 70% by mass or more of the liquid component from the ink image, a transfer step, and a smoothing step of bringing a fixing member into contact with the ink image on the recording medium, heating and pressing the ink image at a temperature not less than the softening point of the resin to smooth the surface of the ink image, and releasing the heated and pressed ink image from the fixing member at a temperature less than the softening point of the resin.

Ink jet recording method and ink jet recording apparatus with bringing porous body of liquid absorbing member into contact with ink image

On a conveyance path of a liquid absorbing member including a porous body, a liquid absorbing unitthat absorbs a first liquid from a first image, a recovery liquid applying unitthat applies a recovery liquid to the porous body absorbing the liquid and a liquid collecting unitthat collects a liquid component absorbed by the porous body are arranged in this order, and a cleaning unitthat brings a cleaning member into contact with the conveyance path of the porous body is disposed at least between the liquid absorbing unit and the recovery liquid applying unit or between the liquid collecting unit and the liquid absorbing unit.

Ink jet printing apparatus and ink jet printing method

An ink jet recording method is disclosed where, when a liquid including water is absorbed and removed from an image including an aqueous liquid component and a coloring material, by use of a water repellent porous body, a contact surface of the porous body with the image is treated with a wetting liquid whose contact angle to the contact surface is less than 90&#xb0;, and thereafter absorption and removal of the aqueous liquid component from the image by the porous body are performed.

Ink jet recording apparatus and ink jet recording method

When a porous body is repeatedly used to perform treatment of absorbing and removing an aqueous liquid component on an image which is formed using a reaction liquid and an ink and contains the aqueous liquid component and a coloring material, recovery treatment for applying a recovery liquid to the porous body is performed, the recovery liquid having a viscosity lower than a viscosity of the reaction liquid and the ink.

A recording method includes: applying a reactant configured to thicken upon contact with ink to an intermediate transfer body; forming an intermediate image by applying ink to the intermediate transfer body; applying an auxiliary liquid containing a water-soluble polymer to the intermediate image to form an intermediate image layer; and transferring the intermediate image layer to a recording medium. At least one of the reactant, the ink, and the auxiliary liquid contains a certain compound. The reactant contains a surfactant different from this compound and having a cloud point. The temperature of the intermediate image layer at contact with the recording medium is equal to or higher than both the cloud point of the surfactant and the glass transition temperature of the water-soluble polymer, and that at release from the intermediate transfer body is lower than the glass transition temperature of the water-soluble polymer.

Recording method and recording apparatus

An image recording method includes a reaction liquid applying step; a first liquid composition applying step; an ink applying step of applying an ink containing a second water-soluble resin so as to at least partly overlap with an area where the first liquid composition is applied on an intermediate transfer member to form an intermediate image; and a step of transferring the intermediate image to a recording medium by bringing the intermediate image into contact with the recording medium to separate the intermediate image from the intermediate transfer member. The temperatures Tc, Tof the intermediate image and intermediate transfer member from start of the contact to the separation are adjusted to be not less than the glass transition temperature Tgs of the second water-soluble resin. The temperatures Tr, Tof the intermediate image and recording medium at the separation are adjusted to be less than Tgs.

Image recording method and image recording apparatus

A recording method according to an aspect of the invention includes: applying a reactant to an intermediate transfer body, the reactant configured to thicken upon contact with ink; forming an intermediate image by applying ink to the intermediate transfer body carrying the reactant; applying an auxiliary liquid to the intermediate image to form an intermediate image layer, the auxiliary liquid containing a water-soluble polymer; and transferring the intermediate image layer to a recording medium; in this order. At least one selected from the group consisting of the reactant, the ink, and the auxiliary liquid contains a certain compound.

An image recording method includes applying a reaction liquid onto an intermediate transfer member, applying an ink onto the reaction liquid on the intermediate transfer member, forming an intermediate image by applying a liquid composition containing a water-soluble polymer onto the reaction liquid and the ink on the intermediate transfer member, and transferring the intermediate image by bringing the intermediate image on the intermediate transfer member into contact with a recording medium and separating the intermediate image from the intermediate transfer member with the contact with the recording medium maintained. The intermediate image to be brought into contact with the recording medium has a temperature Tc higher than or equal to the glass transition temperature of the water-soluble polymer, and the intermediate image to be separated from the intermediate transfer member has a temperature Tr lower than the glass transition temperature of the water-soluble polymer.

Image processing method and image processing apparatus

A liquid ejection head includes, a first support member including a flow path for supplying liquid and an opening communicating with the flow path; at least one second support member that includes an individual liquid chamber communicating with the opening and arranged on the first support member along the flow path; and a recording element substrate including an energy-generating element for generating energy for ejecting the liquid, and a supply port for supplying the liquid to the energy-generating element, the supply port communicating with the individual liquid chamber, the recording element substrate being supported by a back surface of the second support member with respect to an opposite surface thereof facing the first support member. When P (&#x3bc;J/pL) represents energy to be input per ejection liquid droplet volume in the energy-generating element, thermal resistance R (K/W) of a shortest heat transfer path of the second support member between the recording element substrate and the first support member satisfies:/}.

Liquid ejection head and liquid ejection apparatus

A liquid discharge head includes: a recording element substrate including a discharge port group for discharging liquid and a supply port for supplying the liquid to the discharge port group; a supporting member including a liquid chamber for storing the liquid therein, the supporting member being configured to support the recording element substrate; a flow path formed between the liquid chamber and the supply port and configured to allow the liquid to flow therethrough along a main surface of the recording element substrate on which the supply port opens; and a plurality of through holes communicating the liquid chamber with the flow path. A sum of opening areas of the plurality of through holes per unit area is greater in a region having relatively high temperature than that in a region having relatively low temperature in an in-plane direction of the main surface of the recording element substrate.

Liquid discharge head and recording apparatus using the same

An inkjet recording head includes plural element substrates and a coolant flow channel. Each of the plural element substrates is provided with an ejection port surface and plural energy generating elements. The coolant flow channel is provided with a first heat transfer portion overlapping, in a direction vertical to the ejection port surface, a central portion of each of the element substrates in a direction in which the plural energy generating elements are arranged, and a second heat transfer portion overlapping, in the vertical direction, an area between the plural element substrates which adjoin in the arranged direction. The first heat transfer portion and the second heat transfer portion are provided with recesses or projections, and arrangement density of the recesses or the projections of the first heat transfer portion being greater than that of the second heat transfer portion.

Inkjet recording head

A liquid discharge recording head includes: a recording element substrate including a plurality of recording elements and discharge ports for discharging liquid; an electric wiring board including an opening for disposing the recording element substrate, and a plurality of electrode terminals disposed at an edge of the opening and electrically connected to a plurality of electrodes provided at an edge of the recording element substrate; a supporting plate supporting the recording element substrate and the electric wiring board and including a material having a linear expansion coefficient lower than the linear expansion coefficient of the electric wiring board; and a cover plate including a material having a linear expansion coefficient lower than the linear expansion coefficient of the electric wiring board, stacked on the electric wiring board on the supporting plate and fixed to both the supporting plate and the electric wiring board.

Growing community of inventors

Fujisawa, Japan

Ryohei Goto