Ricoh Company, Ltd.

Yukiko Takamura

Hiroshi Gotou

Keita Katoh

Yuuki Yokohama

Hiromi Sakaguchi

Hiroaki Takahashi

Akiko Bannai

Kiminori Masuda

Inkjet printing apparatus including: ink accommodating unit storing ink; ejection head configured to eject the ink to form print layer; and heating unit configured to heat print target, wherein the ink is clear ink including resin and water, dry film of the clear ink has glass transition temperature of 50&#xb0; C. or more, the inkjet printing apparatus has first printing mode and second printing mode, and the heating unit is configured to heat the print target so that expression: T&#x3e;Tis satisfied, where the Tis temperature (&#xb0; C.) of the print target in printing region printed in the first printing mode obtained when the clear ink is deposited on the print target, and the Tis temperature (&#xb0; C.) of the print target in printing region printed in the second printing mode obtained when the clear ink is deposited on the print target.

Inkjet printing apparatus, inkjet printing method, and method for controlling glossiness of print image

Provided is an ink containing a wax, a plurality of organic solvents, and water, wherein the plurality of organic solvents include a compound having a solubility parameter of 9 or greater but 11 or less and a compound having a saturated vapor pressure at 100&#xb0; C. of 20 mmHg or greater but 400 mmHg or less.

Ink, ink stored container, inkjet recording apparatus, and printed matter

Provided is a set of an ink and a print medium, the set including an ink and a print medium, wherein the ink includes at least one organic solvent, polyurethane resin particles, a colorant, and water, wherein the at least one organic solvent includes a compound having a saturated vapor pressure at 100&#xb0; C. of 65 mmHg or greater but 400 mmHg or less, and wherein a sensor output at a critical image peeling point, measured by a microscratching method, of a solid image formed on the print medium in a manner that the ink is attached in an amount of 0.96 mg/cmis 600 or greater.

Set of ink and print medium, inkjet printing method, inkjet printing apparatus, printed matter, ink, and ink stored container

Ink includes a coloring material, an organic solvent, and water, wherein the ink satisfies the following requisites:

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Wakayama, Japan

Yukiko Takamura