Toyocolor Co., Ltd

Artience Co., Ltd.

Toyo Ink Sc Holdings Co., Ltd.

Mayuko Hayamizu

Kazuhiro Jonai

Norio Suzuki

Atsushi Yoda

Yuji Kameyama

Shunsuke Nakamura

Yuki Sasaki

Ryosuke Yabuki

Provided is an aqueous inkjet ink, including: a colorant; a water-soluble organic solvent; a surfactant; and water, wherein the water-soluble organic solvent includes a diol having 2 to 5 carbon atoms, and a hexylene glycol, and the surfactant includes an acetylenediol having an HLB value of 10 or less.

Aqueous inkjet ink and printed matter

Provided is a recording liquid set including: a pretreatment liquid containing a cationic component, a resin, and water; and an aqueous white inkjet ink containing a white-colored colorant, an organic solvent, and water, wherein the aqueous white inkjet ink has a static surface tension of 20 to 40 mN/m at 25° C., the aqueous white inkjet ink has a static surface tension at 25° C. that is greater than a static surface tension at 25° C. of the pretreatment liquid, and an amount of the white-colored colorant in the aqueous white inkjet ink is 15 to 100 times an amount of the cationic component in the pretreatment liquid.

Recording liquid set, printed matter producing method, and printed matter

An ink set including an inkjet ink, and a treatment liquid used in combination with the inkjet ink, wherein the inkjet ink includes a pigment, a water-soluble organic solvent, a surfactant and water, the treatment liquid includes a coagulant, an organic solvent and water, the coagulant includes calcium nitrate in an amount of 21.5 to 41.7% by mass relative to the total mass of the treatment liquid, an amount of organic solvent having a boiling point at one atmosphere of 240&#xb0; C. or higher in the treatment liquid is not more than 8% by mass, a pH of the treatment liquid is within a range from 3.5 to 10.5, and a viscosity of the treatment liquid at 25&#xb0; C. is within a range from 5.5 to 18.5 mPa&#xb7;s.

Ink set and method for recording printed matter

Growing community of inventors

Tokyo, Japan

Mayuko Hayamizu