Seiko Epson Corporation

Mitsui Chemicals, Inc.

Takayoshi Kagata

Tsuyoshi Sano

Masahiro Yatake

Akira Mizutani

Naoki Koike

Hiroshi Mukai

Hidenori Usuda

Atsushi Denda

Kenichi Seguchi

Shiki Hirata

Akiko Matsuzaki

Maki Nariai

Ippei Okuda

Hiroshi Fukumoto

Katsuko Aoki

Tadashi Watanabe

Toshimi Fukui

Hideki Kawasaki

Takeshi Yano

Shoki Kasahara

Shohei Shiono

Junko Nakamoto

Toshihiro Yoshimura

Saori Yamaki

Yasuyuki Kagawa

Kiyohiko Takemoto

Hidehiko Komatsu

Miharu Kanaya

Naoki Kayahara

Hitoshi Ohta

Akio Ito

Seishin Yoshida

Yasunari Ikeda

Masashi Kamibayashi

Yoshihiko Matsuzawa

Kenji Kitada

Toshinobu Yamazaki

Miho Nakamura

Hiroko Wachi

Shugo Hattori

Ryota Miyasa

Hiroshi Maekawa

Kazunari Tsukada

Yohei Shibata

Shigeki Kawada

Yukiko Egami

Fukui Toshimi

Kawasaki Hideki

Toshiaki Oguchi

An ink set is an ink set including a cyan ink C1 which has a fluorescent brightening intensity of 3.0 or greater and an SP value of 12 to 18 (cal/cm), a magenta ink M1 which has a fluorescent brightening intensity of 3.0 or greater and an SP value of 12 to 18 (cal/cm), a yellow ink Y1 which has a fluorescent brightening intensity of 3.0 or greater and an SP value of 12 to 18 (cal/cm), a cyan ink C2 which has a fluorescent brightening intensity of less than 3.0 and an SP value of 12 to 18 (cal/cm), a magenta ink M2 which has a fluorescent brightening intensity of less than 3.0 and an SP value of 12 to 18 (cal/cm), and a yellow ink Y2 which has a fluorescent brightening intensity of less than 3.0 and an SP value of 12 to 18 (cal/cm), in which the SP values are values obtained by a turbidity titration method using a mixed solution of water and acetone.

Ink set, recording method, and recording device

A dye printing treatment liquid composition is used to be adhered to a cloth and includes a polyester resin and water, the polyester resin includes a structural unit derived from an aromatic compound and a structural unit derived from a non-aromatic compound, the aromatic compound includes a phthalic acid, the non-aromatic compound includes a (poly)alkylene glycol, a content of a structural unit derived from the phthalic acid with respect to 100 percent by mole of the polyester resin is 15 to 85 percent by mole, and a content of a structural unit derived from the (poly)alkylene glycol with respect to 100 percent by mole of the polyester resin is 15 to 85 percent by mole.

Dye printing treatment liquid composition, composition set, printing method, and ink jet printing method

A recording method includes a colored ink adhering step of adhering a colored ink composition to an intermediate transfer medium by an ink jet method to form a recording region A, a clear ink adhering step of adhering a clear ink composition to at least a portion of a recording medium to form a region B, and a transfer step of transferring an image formed in the recording region A to the region B of the recording medium by heating in a state where the recording region A of the intermediate transfer medium faces the region B of the recording medium. The colored ink composition contains a sublimation dye, a water-soluble organic solvent, and water, and the intermediate transfer medium has a peeling layer containing a resin having a glass transition point of 100° C. or more and 200° C. or less.

Recording method

An ink jet recording method includes applying a reaction solution containing a coagulant for coagulating components of an ink composition onto a recording medium and applying an ink composition onto the recording medium by discharging the ink composition from an ink jet head. The ink composition is an aqueous ink jet composition which contains a first wax having a melting point of 100&#xb0; C. or higher, a second wax having a melting point of 70&#xb0; C. or lower, and water.

Ink jet recording method and ink set

An ink jet recording apparatus includes a discharge head including a nozzle discharging ink to a recording medium and a cap capable of covering the nozzle of the discharge head. The ink contains water, a colorant, and an organic compound which is solid at 25.0&#xb0; C. and which has an octanol/water distribution coefficient of 0.0 or less. The cap includes no ink absorber.

Ink jet recording apparatus

A water-based inkjet ink composition comprising composite resin fine particles composed of a first resin and a second resin, and having an SP value of from 9.0 to 12.0 (cal/cm), wherein the SP value of the second resin is higher than the SP value of the first resin, and the first resin has a higher mass than the second resin.

Water-based inkjet ink composition

An aqueous ink jet ink composition contains a pigment dispersed with a dispersant resin, resin fine particles, water, and an organic solvent. The aqueous ink jet ink composition does not contain more than 5% by mass of an organic solvent having a normal boiling point of 280&#xb0; C. or more. Further, a viscosity increase rate of the aqueous ink jet ink composition is within 200% at 20&#xb0; C. when 20% by mass of the water evaporates, and a difference in the SP values between the dispersant resin and a resin of the resin fine particles is within 2.

Aqueous ink jet ink composition, ink jet recording method, and method for controlling ink jet recording apparatus

An ink set includes two ink compositions containing resin and wax separately, with the resin in one and the wax in the other, or an ink composition containing resin and wax together as well as a coagulant solution containing a coagulant for a component of the ink composition(s). The resin and the wax include a resin and a wax wherein the resin has higher aggregability than the wax.

Ink set and recording method

An ink jet recording method according to the present embodiment includes ejecting a water-based ink composition where a content of an organic solvent having a standard boiling point of 280&#xb0; C. or more is 0.5% by mass or less from a head nozzle and attaching the water-based ink composition to a recording medium, in which a contact angle between at least a part of the surface of the member in contact with the water-based ink composition in the members in the head and the water-based ink composition is 30&#xb0; or less, and the surface of the member in contact with the water-based ink composition is formed of a material having an SP value of 9 or less.

Ink jet recording method and control method of ink jet recording apparatus

An ink set which is used for sublimation transfer includes a first ink, and a second ink. The first ink has a color after transfer of |a*|&#x2264;10 and |b*|&#x2264;10 in a CIELAB color space, and contains a first disperse dye dispersed by a first dispersion resin. The second ink has a color after transfer of |a*|&#x3e;10 or |b*|&#x3e;10 in the CIELAB color space, and contains a second disperse dye dispersed by a second dispersion resin. A glass transition temperature of the first dispersion resin and is different than that of the second dispersion resin.

An ink jet ink composition includes a sublimation dye, a dispersant for the sublimation dye, and polyether siloxane having a weight average molecular weight of 1000 or more and having 5 or more siloxane repeating units.

Ink jet ink composition and recording method

An ink jet recording method includes attaching a treating liquid, in which a content of a nitrogen-containing solvent is greater than that of an ink composition, to a recording medium having low or non-absorbability in which a step of surface unevenness is equal to or greater than 10 &#x3bc;m, and attaching the ink composition containing the nitrogen-containing solvent by discharging the ink composition from an ink jet head to the recording medium to which the treating liquid is attached.

Ink jet recording method and method of controlling ink jet recording apparatus

An aqueous ink composition contains an organic solvent, a surfactant, and resin fine particles. The resin of the resin fine particles takes 500 minutes or more to melt at 40&#xb0; C. with the surfactant, which is a temperature relatively close to the temperature the ink jet head is heated to by the platen or the like during recording. Such an aqueous ink composition exhibits a good filling property and can be continuously ejected stably.

Aqueous ink composition and ink jet recording method

Provided is an ink composition that includes a color material, water, an organic solvent, and polymer particles, the organic solvent including an organic solvent with a standard boiling point of equal to or greater than 150&#xb0; C. and equal to or less than 250&#xb0; C., the content of the organic solvent that is an alkyl polyol with a standard boiling point of equal to or greater than 280&#xb0; C. being equal to or less than 2.0% by mass with respect to a total amount of the ink composition, the polymer particles having a core-shell structure including core polymer and shell polymer, and a glass transition temperature of the shell polymer being higher than that of the core polymer, and that is used for a recording method using the ink composition and an aggregating liquid containing an aggregating agent capable of aggregating components of the ink composition and increasing viscosity of the components.

Ink composition and recording method

An ink jet recording method includes attaching an ink composition, with which a pressure chamber of an ink jet head is filled, to a recording medium by discharging the ink composition via a nozzle port, in which the ink jet head includes a step between the pressure chamber and the nozzle port, the ink composition contains water, a resin, and an organic solvent including at least a nitrogen-containing solvent, and the organic solvent includes an organic solvent, in which a difference in a SP value between the organic solvent and the resin is within 5, in a range of 0.1 part by mass to 0.4 parts by mass with respect to 1 part by mass of water, and does not include an organic solvent which has a standard boiling point of equal to higher than 280&#xb0; C. and the content of more than 5% by mass in the ink composition.

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Shiojiri, Japan

Takayoshi Kagata