Ricoh Company, Ltd.

Yukihiro Imanaga

Juichi Furukawa

Hidefumi Nagashima

Masahiro Kido

Tomohiro Nakagawa

Yuta Nakamura

Satoyuki Sekiguchi

Hikaru Kobayashi

Masaaki Tsuda

Ayaka Tanaka

Hiroaki Takahashi

Takahiro Yoshida

Akihiko Matsuyama

Michihiko Namba

Kazuhiko Umemura

Yuuki Yokohama

Amika Sagara

Masaki Kudo

Mayumi Yoshihara

Atsufumi Hanazawa

Noriaki Okada

An image forming method for forming an image on a non-absorbable substrate includes (a) applying a surface processing composition including water, a first organic solvent, and a urethane resin particle to the non-absorbable substrate, (b) applying a non-white ink including water, a second organic solvent, and a second acrylic resin particle and (c) applying a white ink including water, a third organic solvent, a third acrylic resin particle, and a white colorant.

Image forming method, image forming apparatus, and method for manufacturing printed matter

An ink comprises a pigment, a quinacridone derivative represented by the following Chemical formula 1. 

Ink, ink container, inkjet recording device, and recording method

Provided is an ink including water, organic solvents, a color material, and resin particles, wherein the ink is used in a printing method including applying the ink onto a substrate including a resin to print, and the organic solvents include a compound, a diol compound including 3 or 4 carbon atoms, and 2-ethylhexyl alcohol, where the compound has a boiling point of 170&#xb0; C. or higher and an absolute value of a difference between Fh of the compound represented by Mathematical Formula 1 and Fh of the resin in the substrate represented by Mathematical Formula 1 is 5% or less,(%)=[&#x3b4;/(&#x3b4;)]&#xd7;100&#x2003;&#x2003;&#x3c;Mathematical Formula 1&#x3e;where, in Mathematical Formula 1, &#x3b4;H is a hydrogen bond term of the Hansen solubility parameter, &#x3b4;D is a dispersion term of the Hansen solubility parameter, and &#x3b4;P is a polarity term of the Hansen solubility parameter.

Ink, set of ink and substrate, ink-jet printing method, ink-jet printer, and print

A print method includes applying a first ink to a recording medium to form a first ink print layer, drying the first ink print layer to a drying ratio of 30 percent or less, and applying a second ink having a color different from that of the first ink to the first ink print layer to form a second ink print layer thereon, wherein the first ink includes a urethane resin particle and a water-soluble organic solvent having a boiling point of from 100 to 180 degrees C. or &#x3b2;-alkoxy propionamide of Chemical formula I, 

Print method, ink set, and inkjet print device

A surface treatment liquid composition for a substrate includes a nonionic resin particle and a multivalent metal salt.

Surface treatment liquid compostion, ink set, recording method, and recording device

An ink including: water; at least one organic solvent; a polysiloxane surfactant; and acryl-silicone resin particles, where the polysiloxane surfactant has an HLB value of 8 or less.

Ink, inkjet printing apparatus, inkjet printing method, and printed matter

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Tokyo, Japan

Yukihiro Imanaga