Canon Kabushiki Kaisha

Mamoru Sakaki

Hiroshi Sato

Yutaka Kurabayashi

Katsuhiko Takahashi

Masao Kato

Jiro Moriyama

Takahiro Mori

Kazuo Yoshinaga

Toshiharu Inui

Toshikazu Ohnishi

Hiroshi Tajika

Hitoshi Sugimoto

Kenji Shinjo

Hiroshi Tomioka

Masashi Ogasawara

Takeo Eguchi

Koromo Shirota

Yomishi Toshida

Makiko Endo

Shinichi Sato

Hiromichi Noguchi

Yoshihisa Takizawa

Hiromitsu Hirabayashi

Kiichiro Takahashi

Akihiro Mouri

Minako Kato

Shuzo Kaneko

Fumihiro Gotoh

Kazuo Isaka

Tomomi Nakatsugawa

Kentaro Yano

Makoto Aoki

Mitsuhiro Ono

Masaya Uetsuki

Shinichi Hakamada

Yuji Kondo

Tsuyoshi Kanke

Takeshi Miyazaki

Katsuhiro Shirota

Satoru Kobayashi

Akio Kashiwazaki

Yasuhiro Nito

Shinya Mishina

Shinichi Tochihara

Naofumi Shimomura

Hiromitsu Kishi

Shinsuke Tsuji

Kouji Harada

Koichi Sato

Masato Katayama

Mayumi Yamamoto

Masako Shimomura

Yuko Suga

Minako Kawabe

Aya Takaide

Tetsu Iwata

Shinichi Sakurada

Hiroyuki Takuhara

Eriko Ono

Takahiro Shiratori

Hiroyuki Ishinaga

Noribumi Koitabashi

Takashi Imai

Shoji Koike

Kiyomitsu Kudo

Makoto Shioya

Mikio Sanada

Yoshifumi Hattori

Tadashi Kobayashi

Keiichi Murai

Yoshio Takasu

Hirofumi Ichinose

Kumiko Mafune

Eiichi Suzuki

Tsuyoshi Santoh

Masashi Tsujimura

Shin-ichi Sato

Kenichi Moriya

Masahiko Tonogaki

Mifune Hirose

Yuko Nishioka

Yukiko Futami

Masanori Jinnoh

Tomomi Kaneko

Shin-ichi Tochihara

Satoshi Nagamine

Ai Shinohara

Kazuo Yoshinada

Eri Watanabe

Shin-Ichi Tochihara

An image recording method includes recording an intermediate image by applying an ink to an intermediate transfer body, the ink containing a coloring material and polymer fine particles; and transferring the intermediate image onto a recording medium while heating the intermediate. The polymer fine particles are composed of a copolymer of a first compound that satisfies condition (1) (a polymer obtained by homopolymerization of the first compound is a crystalline polymer having a melting point equal to or lower than a temperature of the transfer) and a second compound that satisfies condition (2) (a polymer obtained by homopolymerization of the second compound is an amorphous polymer having a glass transition point equal to or lower than the temperature of the transfer).

Image recording method

An image recording method includes recording an intermediate image by applying an ink to an intermediate transfer body, and transferring the intermediate image onto a recording medium while heating the intermediate image. The ink contains a coloring material and polymer fine particles each including a core constituted by a crystalline polymer and a shell constituted by an amorphous polymer. In transferring the intermediate image, the intermediate image is heated to a temperature equal to or higher than a melting point of the crystalline polymer constituting the core and equal to or higher than a glass transition point of the amorphous polymer constituting the shell.

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

An ink jet ink containing a coloring material and a polymer particle, wherein the polymer particle has a core portion and a shell portion, the shell portion contains a copolymer A having a unit derived from a compound (a1) represented by a general formula (1) of R&#x2014;(CHO)&#x2014;Rwhere Ris at least one selected from a vinyl group, an allyl group, an acryloyl group and a methacryloyl group, Ris a hydrogen atom or an alkyl group, and n is 30-100, and a unit derived from an &#x3b1;,&#x3b2;-unsaturated hydrophobic compound (a2), a proportion of the unit derived from the compound (a1) to the copolymer A is 50-90% by mass or less, a proportion of the unit derived from the compound (a2) to the copolymer A is 10-50% by mass or less, and the core portion contains a polymer of an &#x3b1;,&#x3b2;-unsaturated hydrophobic compound (b).

Ink jet ink, ink cartridge, ink jet recording method and polymer particle

An image recording method including applying an ink containing a coloring material and a polymer particle to a recording medium from a recording head of an ink jet system and applying a liquid composition which destabilizes a dispersed state of the polymer particle in the ink to at least a part of a region of the recording medium where the ink is applied, wherein the polymer particle in the ink has core and shell portions, the shell portion contains a copolymer A having a unit (50-90% mass) derived from a compound (a1) represented by a general formula (1) or (2) and a unit (10-50% mass) derived from an &#x3b1;,&#x3b2;-unsaturated hydrophobic compound (a2), and the core portion contains a polymer of an &#x3b1;,&#x3b2;-unsaturated hydrophobic compound (b).

Image recording method, and set of ink jet ink and liquid composition

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 a self-dispersion pigment including a pigment, an ionic group directly bonded to the pigment and a nonionic molecular chain bonded to the pigment through an amide bond.

Self-dispersion pigment, production process of self-dispersion pigment, ink set and ink jet recording method

To provide an active energy ray curable aqueous ink composition exhibiting excellent curing performance by including a water-soluble polymerizable substance with high reactivity and a water-soluble polymerization initiator having high initiation efficiency; and an inkjet recording method, ink cartridge, recording unit, and inkjet recording apparatus all using the active energy ray curable aqueous ink composition. The active energy ray curable aqueous ink composition includes at least water; a polymerizable substance which undergoes radical polymerization by active energy rays; and a polymerization initiator which generates radicals by active energy rays, in which the polymerizable substance is a water-soluble compound having 2 to 6 (meth)acrylic groups; and the polymerization initiator is a water-soluble acylphosphine oxide compound.

Active energy ray curable aqueous ink composition, and inkjet recording method, ink cartridge, recording unit, and inkjet recording apparatus using the same

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

An active energy ray curable ink which is quickly polymerized by an active energy ray, high in crosslinking degree of a cured material formed, excellent in adhesive property, low in viscosity, excellent in long-term storability and also excellent in ejection stability, and an ink-jet recording process, an ink cartridge, a recording unit and an ink-jet recording apparatus using such an ink are provided. In the active energy ray curable aqueous ink comprising at least water and a polymerizable material which is radically polymerized by an active energy ray, the polymerizable material is a water-soluble polymerizable material represented by the following general formula (I). An ink-jet recording process, an ink cartridge, a recording unit and an ink-jet recording apparatus using such an ink 

Active energy ray curable aqueous ink, and ink-jet recording process, ink cartridge, recording unit and ink-jet recording apparatus using the same

Disclosed herein is an image-forming method, including performing image formation on the basis of pixel data by using at least a yellow recording agent, a magenta recording agent, and a third recording agent. A color represented on a recording medium by the third recording agent on a color space of CIE-L*a*b* has lightness higher than lightness of a color reproduction region represented on the recording medium by a combination of the yellow recording agent and the magenta recording agent, and has a hue angle in the color reproduction region. A difference in hue angle on the color space between a color represented by the yellow recording agent and a color represented by the magenta recording agent is in a range of 60 to 113&#xb0;.

Image-forming method, image-forming apparatus, ink set, and ink

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Higashimurayama, Japan

Yutaka Kurabayashi