Canon Kabushiki Kaisha

Other

Kenji Shinjo

Masahiro Terada

Kazuharu Katagiri

Hiroyuki Kitayama

Masataka Yamashita

Takeshi Togano

Takao Takiguchi

Masanobu Asaoka

Takashi Iwaki

Shinichi Nakamura

Shosei Mori

Akio Yoshida

Kazuo Yoshinaga

Yutaka Kurabayashi

Syuji Yamada

Toshiharu Uchimi

Koichi Sato

Akira Tsuboyama

Yukio Hanyu

Junko Sato

Yoshiko Kimura

Yutaka Inaba

Koromo Shirota

Yoko Yamada

Tatsuaki Orihara

Katsutoshi Misuda

Shinsuke Tsuji

Nobuyuki Hosoi

Kouji Harada

Chieko Hioki

Hajime Yamamoto

Fumitaka Goto

Osamu Taniguchi

Shinichi Hakamada

Yasuhiro Nito

Toshihiko Bekki

Hideyuki Sugioka

Masami Amemiya

Hiroshi Mizuno

Hiroyuki Nohira

Katsutoshi Nakamura

Minako Kawabe

Tetsu Iwata

Ako Omata

Yohei Kohashi

Hitoshi Yoshino

Hiromichi Noguchi

Tadayoshi Inamoto

Shoji Shiba

Ikuo Nakazawa

Norio Ohkuma

Masanao Kamei

Yoshikazu Saito

Hirofumi Ichinose

Koji Noguchi

Masako Shimomura

Takeshi Okada

Kenji Onuma

Daisuke Yoshitoku

Hiroe Ishikura

Masashi Tsujimura

Masaaki Hiro

Kenichi Moriya

Toyoko Kobayashi

Shinichi Sakurada

Kyosuke Deguchi

Yuichiro Kanasugi

Hikaru Ueda

Yasuaki Tominaga

Yoshitaka Torisaka

Ako Takemura

Yuuta Kumano

An aqueous inkjet ink of the present disclosure is an active energy ray curable aqueous inkjet ink including a water-soluble monomer having a polymerizable group and a hydrazide compound. The water-soluble monomer is a curable substance having a ketone structure.

Aqueous inkjet ink, aqueous inkjet ink set, and inkjet recording method

Provided is an ink jet printing method including: a first step of ejecting an ink containing a water-soluble polymerizable component A and water from a printing head of an ink jet system to apply the ink to a medium M, to thereby form a first image; and a second step of applying an active energy ray to the first image to form a second image. The polymerizable component A is dissolved in the first image, and a moisture concentration 'x' (mass %) in the first image and a moisture concentration “y” (mass %) in the second image placed under an environment at a humidity of 95% satisfy a relationship of 0<(y/x)≤0.80.

Ink jet printing method, ink jet printing apparatus, method of producing porous body, and apparatus for producing porous body

The active energy ray-curable liquid composition according to the present disclosure is an active energy ray-curable liquid composition that contains water and a curable substance and is curable with an active energy ray, in which the curable substance contains a monofunctional polymerizable monomer having a structure represented by the Formula (1); in Formula (1), R1 represents a hydrogen atom or a saturated hydrocarbon group, R2 represents a saturated hydrocarbon group that has at least one of a hydroxyl group or an amide bond and may contain a heteroatom, R3 represents a hydrogen atom or a methyl group, R1 and R2 may be bonded together to form an aliphatic heterocycle together with a nitrogen atom substituted with R1 and R2 in a case where R1 represents a saturated hydrocarbon group, and a total number of carbon atoms of the saturated hydrocarbon groups represented by R1 and R2 is 5 or more.

Active energy ray-curable liquid composition, recording method, and recording apparatus

Provided are an ink jet image forming method and an ink jet image forming apparatus in which a complex elastic modulus (Pa) before an intermediate image comes into contact with a liquid absorbing member is 4.0 or more in the common logarithm, and a complex elastic modulus (Pa) before the intermediate image comes into contact with the recording medium is 7.0 or less in the common logarithm.

Ink jet image forming method and ink jet image forming apparatus

An ink jet recording method including the steps of applying onto a recording medium a treatment liquid containing a component which causes ink viscosity increase and a compound A having a polyalkylene glycol ether structure and having only one hydroxy group; and applying an ink onto the recording medium. The cloud point of the compound A measured by using a 1% by mass concentration aqueous solution of the compound A is 50&#xb0; C. or more.

Ink jet recording method

The invention provides an aqueous liquid composition containing a water-soluble monomer, a photopolymerization initiator and an aqueous medium and further containing a polymer emulsion, wherein the water-soluble monomer is a monomer that has two or more ethylenically unsaturated bonds and is curable with an active energy ray.

Liquid composition, ink jet recording method, ink jet recording apparatus and recorded image

The invention provides an active energy ray curable ink jet recording liquid composition including a radically polymerizable compound, an active energy ray polymerization initiator, a wax and water, wherein the melting point of the wax is 40&#xb0; C. or more and 120&#xb0; C. or less.

Active energy ray curable ink jet recording liquid composition and ink jet recording method using the same

The invention provides an active energy ray curable liquid composition containing a compound having a bonding group represented by a general formula (I), and a liquid cartridge. ([A] in the formula (I) is a cyclic group represented by a general formula (II), [Y] in the formula (II) is a cyclic linking group having a carbonyl group and a site containing an unsaturated carbon bond adjacent to the carbonyl group, and E in the formula (I) is a bonding group having at least one amide bond and at least one of divalent organic groups which may be substituted.

Active energy ray curable liquid composition and liquid cartridge

The invention provides an active energy ray curable liquid composition containing a compound represented by a general formula (I): wherein A is a hydrogen atom or a monovalent organic residue which may be substituted, Rand Rare, independently of each other, a divalent organic group which may be substituted, E is an amide bond, Ris a cyclic linking group having a carbonyl group and an unsaturated carbon-carbon bond adjacent to the carbon atom of the carbonyl group, m is a number of 0 or greater, n is a number of 2 or greater, m+n is 3, and Z is a secondary or tertiary amino bond structure, with the proviso that the amino bond may be a salt of a secondary or tertiary amine, and a liquid cartridge.

To suppress curling phenomenon of a recording medium to which a liquid composition is applied while securing ejection stability. A liquid composition for used in an image recording method including the steps of applying an ink containing a colorant in a dissolved state or a dispersed state to a recording medium and applying to the recording medium a liquid composition which destabilizes the dissolved state or the dispersed state of the colorant in the ink by coming into contact with the ink, the liquid composition including at least a polyvalent metal ion, water, and water-soluble organic compounds 1 and 2, in which a content X (mass %) of the water-soluble organic compound 1 in the liquid composition is 15 mass % or more, and the content X (mass %) of the water-soluble organic compound 1 in the liquid composition and a content Y (mass %) of the water-soluble organic compound 2 in the liquid composition satisfy a specific relationship.

Liquid composition, set of liquid composition and ink, ink jet recording apparatus, and image forming method

The present invention can sufficiently suppress curling phenomenon of a recorded product and facilitate handling of a printed product produced by using plain paper, in particular. The present invention provides a printing medium coating solution including water and a water-retentive, water-soluble organic compound, wherein the water-soluble organic compound includes only a water-soluble organic compound showing a difference of 36% or less between the water retention ability at a temperature of 23&#xb0; C. and a humidity of 45% and the water retention ability at a temperature of 30&#xb0; C. and a humidity of 80%; and the content of the water-soluble organic compound is 15 mass % or more with respect to the total amount of the printing medium coating solution. The present invention provides an ink-jet ink including a coloring material, water, and a water-retentive, water-soluble organic compound, wherein the water-soluble organic compound includes only a water-soluble organic compound showing a difference of 36% or less between the water retention ability at a temperature of 23&#xb0; C. and a humidity of 45% and the water retention ability at a temperature of 30&#xb0; C. and a humidity of 80%; and the content of the water-soluble organic compound is 15 mass % or more with respect to the total amount of the ink-jet ink.

Printing medium coating solution, ink-jet ink, image forming method, set of printing medium coating solution and ink-jet ink, and ink-jet recording apparatus

Ink jet ink which sufficiently suppresses curling phenomenon of printed matters and satisfies ejection stability, the ink comprising at least water, a colorant, a water-soluble organic compoundand a water-soluble organic compound, wherein the content X(%) of the water-soluble organic compoundis 10 mass % or more based on the total amount of the ink jet ink and the content X(%) of the water-soluble organic compoundand the content Y(%) of the water-soluble organic compoundbased on the total amount of the ink jet ink satisfy the relation of the following formula (I) and formula (II):0&#x3c;&#x2266;0.9, &#x2003;&#x2003;(I)&#x2267;15 mass %, &#x2003;&#x2003;(II)and wherein the water-soluble organic compoundis a water-retentive, water-soluble organic compound having a difference between the water retention ability in an environment of a temperature of 23&#xb0; C. and a humidity of 45% and the water retention ability in an environment of a temperature of 30&#xb0; C. and a humidity of 80% of 36% or less, and the water-soluble organic compoundis a water-soluble organic compound other than the colorant and the water-soluble organic compound

Ink jet ink and ink jet recording method

The present invention provides an anti-curl agent containing an amide compound of specific structure and molecular weight, an ink jet ink containing the amide compound, a method for ink jet recording to form images by ejecting the ink, and a method for reducing curl of recording media using the ink. The anti-curl agent of the present invention can reduce shape changes of a printed paper with a lapse of time, i.e., the curl phenomenon, tending to occur in particular with a plain paper printed over the entire surface, without deteriorating image quality.

Anticurling agent, ink jet ink, method for ink jet recording and method for reducing curling

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Atsugi, Japan

Kenji Shinjo