Konica-minolta Holdings, Inc.

Hitoshi Morimoto

Shinichi Suzuki

Hirotaka Iijima

Yoshinori Tsubaki

Katsunori Goi

Kei Kudo

Naoko Nakajima

A method for ink-jet textile printing including the steps of: (a) ejecting a pigment ink from a recording head onto a fabric, wherein the pigment ink contains at least water, a pigment and a polymer, wherein the polymer has a plurality of said chains in a hydrophilic main chain and is capable of cross-linking between the side chains by irradiation of active energy rays, and (b) forming an image by irradiation of active energy rays onto the ink ejected areas.

Method of ink-jet textile printing

A method of forming an ink-jet image containing the steps of: applying a pre-treatment solution to a textile; and ejecting droplets of an ink-jet ink on the textile through an ink-jet head, wherein the ink-jet ink includes a disperse dye, a dispersing agent, water and a water-soluble organic solvent; the pre-treatment solution comprises an organic acid; and a pH value of the pre-treatment solution is smaller than a pH value of the ink-jet ink.

Ink-jet textile printing method

A black ink for ink-jet printing comprising: a) a carbon black pigment exhibiting a DBP oil absorption of not more than 150 cm/100 g and a pH of more than 6, b) a solvent exhibiting a surface tension of 25-40 mN/m at 25 &#xb0; C. a viscosity of 1-50 mPa&#xb7;s at 25 &#xb0; C. and a vapor pressure of not more than 133 Pa at 25 &#xb0; C. a solvent content of which being not less than 50 weight % and not more than 90 weight % based on the total ink weight, and c) water, the content of which being not less than 10 weight % and less than 45 weight %.

Black Ink for ink-jet printing

An ink-jet cloth printing ink containing a disperse dye, a dispersing agent, water and a water-soluble organic solvent, wherein the average particle diameter of the disperse dye is from 100 nm to 300 nm and the solubility of the dye in the ink is from 10to 10.

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Hachioji, Japan

Hitoshi Morimoto