Fuji Xerox Co., Ltd.

Xerox Corporation

Fuji Zerox Co., Ltd.

Toshitake Yui

Ken Hashimoto

Yoshiro Yamashita

Atsushi Suzuki

Kunichi Yamashita

Nobuyuki Ichizawa

Eisuke Hiraoka

Akihiko Chujo

Yasuharu Endo

Fuminori Koide

Hiroyuki Ueki

Mami Hatanaka

Kyoko Horii

Takatsugu Doi

Kentaro Ageishi

Hitoshi Kojima

Kyoko Horinouchi

Etsuo Sagara

Marcel Philippe Breton

Shadi L Malhotra

Hiroshi Inoue

Hiroshi Ikeda

Naoki Morita

Melvin D Croucher

Toshiyuki Yano

Toru Nishida

Katsuhide Ogawa

Izuru Matsui

Kerstin M Henseleit

Daisuke Nakashima

Mihoko Tani

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

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 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.

A layer forming device forms a layer of liquid absorbing particles on a surface of a layer of a hardenable solution capable of being hardened in response to a given stimulus so that the liquid absorbing particles absorb liquid drops supplied to the surface of the layer of the hardenable solution.

Layer forming device, image forming apparatus, and computer readable medium

A recording apparatus includes: an intermediate transfer member; a supply unit that supplies a curable liquid onto the intermediate transfer member, the curable liquid including at least one curable material that is cured by an external stimulus and a liquid absorbing material; a first temperature information acquisition unit that acquires temperature information related to the curable liquid; a temperature regulation unit that regulates the temperature of the curable liquid supplied onto the intermediate transfer member; an ink application unit that applies ink onto a curable liquid layer formed on the intermediate transfer member; a transfer unit that brings the curable liquid layer onto which the ink has been applied into contact with a recording medium, and transfers the curable liquid layer from the intermediate transfer member to the recording medium; and a stimulus application unit that applies a stimulus for curing the curable liquid layer to the curable liquid layer.

The present invention relates to a method for treating liquids used in inkjet recording including, providing a first printing liquid and a second printing liquid that is capable of reacting with the first printing liquid to cause coagulation and thickening if mixed with the first printing liquid, and exposing the first and second printing liquids to each other to form a mixture, wherein when the mixture includes a coagulation-thickening preventing agent which prevents the reaction of the printing liquids.

Method for treating inkjet liquid, recording apparatus using the same, liquid storage tank, liquid absorber for liquid storage and liquid treatment apparatus

The present invention provides a liquid absorbing member for absorbing excessive ink components from an ink image formed on a recording medium by an ink jet recording method, in which the liquid absorbing member contains fibrous matter, and the fiber thickness of fibers composing the fibrous matter is in a range of about 0.01 to 100 dtex. The fibrous matter preferably contains fibers having a fiber diameter in a range of about 0.5 to 10 &#x3bc;m, and fibers composing the fibrous matter are preferably polyester fibers. The invention also provides an ink jet recording apparatus comprising a printhead and the liquid absorbing member.

Liquid absorbing member and ink jet recording apparatus

A double-sided printable image recording apparatus including a conveyer for conveying a recording medium, a fixed recording head for ejecting an aqueous ink and a treating liquid having nature of aggregating a colorant contained in the aqueous ink to a recording medium conveyed by the conveyer, which is arranged in a direction substantially orthogonal to a conveying direction of the recording medium, and has a printing region of a recording medium width, and an ejection controller for controlling ejection of the aqueous ink and the treating liquid from the fixed recording head based on image information, wherein the ejection controller, in a double-sided printing mode of printing on both sides of the recording medium, controls an ejection amount of a treating liquid ejected per recording medium to a smaller amount than that of a single-sided printing mode of printing only on one side, at least on a surface of a recording medium.

Image recording apparatus

An ink jet recording ink is provided containing water, a pigment that is self-dispersible in water, a water-soluble organic solvent, and a nonionic polymer of which the amount is preferably in a range of about 5% by mass to about 200% by mass relative to the total mass of the pigments. The nonionic polymer is preferably selected from a group consisting of polyvinyl alcohol, polyvinyl pyrrolidone, polyacrylamide, poly N-vinyl acetamide, and the like. The absolute value of zeta potential of the ink is preferably in the range of about 5 mV to about 30 mV.

Ink jet recording ink, ink jet recording ink set, and ink jet recording method and apparatus using the ink and the ink set

The present invention provides an ink set for ink jet recording comprising: an ink which contains: water; a colorant; a water-soluble organic solvent; polyvalent metal ions; and compound (A) which is intrinsically capable of substantially inactivating the polyvalent metal ions, and a liquid composition is of a pH in which the polyvalent metal ions in the ink can be substantially activated. The pH of the ink is within a range in which compound (A) keeps the polyvalent metal ions substantially in an inactive state. The invention also provides an ink jet recording method which uses such an ink set.

Ink set for ink jet recording including polyvalent metal ions and compound inactivating the same

The present invention provides an ink-jet recording method adopting an ink-jet recording apparatus including a printer head, which accommodates one or more kinds of ink and has a nozzle face on which one or more nozzles are provided, wherein the printer head is tilted when printing is being stopped so that an axis intersecting with the nozzle face at a right angle is displaced by 3 or more degrees from a direction of the axis when printing is being conducted, and an ink-jet recording apparatus used in the method.

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Kanagawa, Japan

Toshitake Yui