Fuji Xerox Co., Ltd.

Hiroyuki Ueki

Mami Hatanaka

Toshitake Yui

Hirohito Yoneyama

Ken Hashimoto

Yoshiro Yamashita

Reika Abe

Reika Yomogida

Chikara Manabe

Naoki Morita

Daisuke Nakashima

An image forming device includes: a transporting route on which a recording medium is transported; an image forming unit that is provided on the transporting route and forms an image by discharging liquid droplets containing macromolecular particles on a front surface of the transported recording medium; a heating unit that heats the image formed on the front surface of the recording medium to a temperature higher than a glass transition point of the macromolecular particles; and a cooling unit that, before the image heated by the heating unit comes into contact with a member on the transporting route, cools the image formed on the front surface of the recording medium to a temperature equal to or lower than the glass transition point of the macromolecular particles in a non-contact state with the image.

Image forming device and image forming apparatus

A recording method includes: ejecting aqueous ink to a surface of a recording medium by an ejection head, the aqueous ink containing a colorant, polymer particles having a glass-transition temperature Tg of 35&#xb0; C. to 65&#xb0; C., and a solvent containing water and an aqueous organic solvent, the aqueous ink having a viscosity ratio (V35/Vi) of a viscosity V35 that is obtained when the aqueous ink is heated at 35&#xb0; C. for 30 minutes to an initial viscosity Vi of the aqueous ink being lower than 2.0 and a viscosity ratio (V65/Vi) of a viscosity V65 that is obtained when the aqueous ink is heated at 65&#xb0; C. for 30 minutes to Vi being 8.0 to 20.0; and drying the aqueous ink ejected to the recording medium. The head temperature Th of the ejection head, the glass-transition temperature Tg, and the drying temperature Td satisfy an expression: Th&#x3c;Tg&#x3c;Td.

Recording method, recording system, and recording apparatus

A recording apparatus includes an ejecting head that ejects aqueous ink which includes a colorant, polymer particles, water, and an aqueous organic solvent, of which static surface tension is from 22 mN/m to 30 mN/m, and a difference between a value of dynamic surface tension after 10 msec and a value of dynamic surface tension after 1000 msec is greater than 2 mN/m and equal to or smaller than 10 mN/m, when dynamic surface tension is measured with a maximum bubble pressure technique, in an the ink droplet amount in a range of less than 10 pl.

Recording apparatus and recording method

An ink includes pigment particles, polymer particles in such an amount that a total volume thereof is from 0.3 to 1.6 when a total volume of the pigment particles is taken as 1, water, and an aqueous organic solvent.

Ink, recording device, and recording method

Provided is an image forming apparatus including an ejection section that ejects liquid droplets of plural colors including black liquid droplets, a control section that controls the ejection section such that the black liquid droplets and at least a part of the liquid droplets of other colors contact on a recording medium when preliminary ejection is performed on a non-image forming region of the recording medium, and a drying section that dries the liquid droplets of the plural colors.

Image forming apparatus, image forming method, and non-transitory computer readable medium

There is provided an ink jet recording apparatus equipped with an ink for ink jet recording, and a discharge unit that discharges a liquid droplet of the ink onto a recording medium, wherein the ink contains at least a colorant, a polymer particle, a water-soluble organic solvent, and water, and has a dynamic surface tension after 1 msec of 32 mN/m or less, a dynamic surface tension after 1 sec of less than 30 mN/m, when the dynamic surface tension is measured by a maximum bubble pressure method, and has a variation width in the dynamic surface tension for the period from 1 msec after to 1 sec after of from 0.2 mN/m to 3.0 mN/m, a recording speed is from 10 m/min to 50 m/min.

Ink jet recording apparatus and ink jet recording method

A recording method includes ejecting an ink on an recording medium, wherein the ink includes a colorant, polymer particles, water, and an aqueous organic solvent, has a static surface tension of equal to or less than 30 mN/m, and has a fluctuation range of a dynamic surface tension from after 1 millisecond to after 1 second of from 0.2 mN/m to 2.0 mN/m when measuring the dynamic surface tension by a maximum bubble pressure method, and wherein the recording medium has a maximum liquid absorption amount of the ink within a contact time of 500 milliseconds measured by a dynamic scanning liquid absorption meter of equal to or greater than 5 ml/m.

Recording method and recording apparatus

There is provided an ultraviolet-curable aqueous ink containing: a continuous phase containing water; and a dispersed phase dispersed in the continuous phase, wherein the dispersed phase contains a water-insoluble ultraviolet polymerizable compound, and a water-insoluble ultraviolet polymerization initiator having an absorption at a wavelength range of 375 nm or more and 450 nm or less.

Ultraviolet-curable aqueous ink, ink cartridge, recording apparatus and recording method

There is provided a recording apparatus equipped with an ejection head that ejects an ink to a surface of the undercoat layer of an impermeable recording medium that has, on at least one surface thereof, an undercoat layer containing a polymeric compound selected from the group consisting of polyurethane, polyester, polyvinyl chloride, and polyolefin, wherein the ink contains a coloring agent, a polymer particle, water, and a water-soluble organic solvent and has a static surface tension of less than 30 mN/m and, when examined for dynamic surface tension by a maximum bubble pressure method, has a width of variation in dynamic surface tension for the period from 1 msec after to 1 sec after of from 0.2 mN/m to 3.0 mN/m.

There is provided an aqueous ink which contains a coloring agent, a polymer particle, water and an aqueous organic solvent, and a surface resistivity of a film obtained by film formation on a glass plate is 1&#xd7;10&#x3a9;/&#x25a1; or less, and a recording method containing: a first discharge step that discharges the first aqueous ink on a front surface of a recording medium; a first drying step that dries the first aqueous ink discharged on the front surface of the recording medium after the first discharge step; and a second discharge step that discharges a second aqueous ink on a rear surface of the recording medium after the first drying step.

Aqueous ink, recording apparatus and recording method

There is provided an ink comprising a colorant, a polymer particle, water, and a water-soluble organic solvent, wherein the ink has a static surface tension of 30 mN/m or less and, when examined for dynamic surface tension by the maximum bubble pressure method, has a width of variations in dynamic surface tension, for a period from 1 msec after to 1 sec after, of 0.2 mN/m to 3.0 mN/m.

Ink, ink set, and recording device

There is provided an ultraviolet-curable aqueous ink containing: an ultraviolet polymerizable compound; a water-insoluble thioxanthone compound having an absorption at a wavelength range of 375 nm or more and 450 nm or less, a water-insoluble tertiary amine compound, water, and a water-soluble organic solvent at least including a solvent (A) that dissolves the thioxanthone compound and the tertiary amine compound.

The present invention relates to an inkjet printing method including forming an image by ejecting an ink comprising at least a colorant and a solvent to a surface of a recording body, and dispersing a resin powder to the surface of the recording body, wherein the resin powder has a particle size of approximately not less than 0.1 &#x3bc;m to not more than 10 &#x3bc;m and a weight average molecular weight of approximately not less than 8,000 to not more than 300,000 and has a monomer that includes a polar group having a salt structure, and to an image forming apparatus using the method.

Inkjet printing method and image forming apparatus

The present invention provides an ink jet liquid composition including chitosan and a non-volatile organic acid. The non-volatile organic acid preferably has two or more carboxyl groups and a cyclic structure other than an aromatic ring. Further, the invention provides an ink jet recording method of forming images on a recording medium surface by ejecting an ink and a liquid composition thereon so that the ink and the liquid are in contact with each other, wherein the ink contains a colorant, the liquid composition contains a component for coagulating the colorant, and the component for coagulating the colorant contains chitosan and a non-volatile organic acid.

Ink jet liquid composition and ink jet recording method

An ink jet recording device including a recording head for depositing ink on a recording medium and a liquid absorbing device for absorbing excess liquid of the ink remaining on the recording medium after the depositing of the ink on the recording medium using the recording head, wherein the liquid absorbing device includes an absorber including a hydrophilic surface which contacts the excess liquid, and the hydrophilic surface has a residual fine particle ratio of not less than about 90%, the residual fine particle ratio being a ratio of fine particles remaining on the hydrophilic surface when fine particles having an average particle size of 5 &#x3bc;m are filtered by the hydrophilic surface.

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Kanagawa, Japan

Hiroyuki Ueki