Seiko Epson Corporation

Nao Kozaka

Yoshitaka Miyajima

Yuki Wakushima

Takuya Sonoyama

Hideki Oguchi

Takeshi Yano

Chitae Hashizume

An ink jet ink composition contains a dye having an azo group, water, and a hindered amine compound having a radical. The dissolved nitrogen concentration of the ink composition is 10 ppm or less.

Ink jet ink composition, ink pack, and ink jet printing method

A textile printing ink jet ink composition set includes a textile printing ink jet ink composition having a hue angle &#x2220;h&#xb0; within a range of 260&#xb0; or more and 310&#xb0; or less and a chroma C* of 45 or less, which are specified in the CIELAB color space, on a textile printing product after textile printing; and a textile printing ink jet ink composition having a hue angle &#x2220;h&#xb0; within a range of 15&#xb0; or more and 80&#xb0; or less and a chroma C* of 65 or less, which are specified in the CIELAB color space, on a textile printing product after textile printing.

Textile printing ink jet ink composition set and recording method

An ink jet recording method performed on a fabric to which a hydrotropic agent is attached includes attaching an ink jet composition for textile printing including a metal complex salt dye, in which a hue angle &#x2220;h&#xb0; defined in CIELAB color space on printed textiles after printing is in a range of 260&#xb0; or more and 310&#xb0; or less, to the fabric using an ink jet method, in which there is a region in which a value of a ratio of a mass of the metal complex salt dye with respect to a total mass of dyes included in the ink jet composition for textile printing is 0.6 or more and 1.0 or less, and a value of a ratio of mass of the metal complex salt dye with respect to a mass of the hydrotropic agent in the fabric is 0.2 or more and 1.0 or less.

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Matsumoto, Japan

Nao Kozaka