Nippon Kayaku Kabushiki Kaisha

Katsunori Fujii

Hiroyuki Matsumoto

Yasuo Shirasaki

Takafumi Fujii

Yasuo Murakami

Yoshiki Akatani

Hiroko Higuchi

Makoto Teranishi

Rima Akanuma

Keijyou Sasaki

Yuji Suzuki

Mariko Umeda

Noriko Kajiura

Toru Tabei

Junko Yoshioka

Tadahiko Tabe

Yoshiyuki Dejima

A black ink composition for inkjet printing that contains a water-soluble organic solvent, a resin emulsion, a dispersing agent, and at least four types of sublimation dyes. At least three of the sublimation dye types are C.I. disperse yellow, C.I. disperse red, and C.I. disperse blue, and at least one of the sublimation dye types has a maximum absorption wavelength in the wavelength band of 640 nm to less than 680 nm as measured from a visible spectral absorption of a solution obtained by dissolving the dye in acetone. An ink set for inkjet printing that includes the black ink composition for inkjet printing, and a method for printing on hydrophobic fibers that uses the composition and the ink set.

Black ink composition for inkjet printing, and method for printing on hydrophobic fibers

An ink composition for inkjet textile printing containing a urethane resin, a dispersant and a disperse dye, in which the content of the urethane resin is greater than 0.035 mass % but less than 6 mass %, and a method for textile printing of hydrophobic fibers using the ink composition.

Ink composition for inkjet textile printing and method for textile printing of hydrophobic fibers

The present invention relates to an aqueous dispersion of a water-insoluble coloring material having superior shelf life stability which is suitable to an ink for ink-jetting, an ink composition superior in shelf life stability and discharge property, a method for inkjet recording using said ink composition, and recorded article obtained thereby. Said aqueous dispersion is characterized by comprising a water-insoluble coloring material, water, an anionic dispersing agent, and an alkylene oxide adduct of phytosterols and/or an alkylene oxide adduct of cholestanols, and said ink composition is characterized by further comprising an organic solvent in addition to the above components.

Aqueous dispersion, ink composition and inkjet recording method using same

The present invention provides magenta dyestuff represented by the formula (1): (wherein symbols are as defined in the present description), with hue and vividness suitable to ink-jet recording, records excellent in fastness to light, gas, water and so on and a superior ink composition using said dyestuff.

Anthrapyridone compound, water-based magenta ink composition and inkjet recording method

The present invention provides magenta dyestuff represented by the formula (1): (symbols are as defined in the present description), with hue and vividness suitable to ink-jet recording, excellent fastness to light, gas, water and so on in records and an ink composition using said dyestuff.

New anthrapyridone compounds represented by the general formula (14): {wherein R represents a hydrogen atom, an alkyl group (optionally substituted with mono- or di-alkylamino group), a lower alkyl group (optionally substituted with a hydroxyl group or a cyano group), or a cyclohexyl group; Y represents a chlorine atom, a hydroxyl group, an amino group, mono- or di-alkylamino group (optionally substituted with a sulfonic acid group, a carboxy group, or a hydroxyl group), an aralkyl- or cycloalkyl-amino group, an alkoxy group, a phenoxy group (optionally substituted with a sulfonic acid group, a carboxy group, an acetylamino group, an amino group, or a hydroxyl group), an anilino group (optionally substituted with a sulfonic acid group or a carboxy group), or a naphthylamino group (optionally substituted with a sulfonic acid group); and X represents a bridging group}; or salts thereof and magenta inks containing the same, which have hues and vividness suitable for ink-jet recording and give records excellent in fastness to light, gas, water and so on.

Anthrapyridone compounds, water-base magenta ink compositions and method of ink-jet recording

New anthrapyridone compounds represented by the general formula (14):

The ink composition comprises as its coloring matter component a water-based magenta composition containing anthrapyridone compound represented by the formula ():wherein R represents hydrogen atom or methyl group; X represents phenyl group, phenoxy group or halogen atom; and n is an integer of 1 to 4, or salt thereof.

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Kawaguchi, Japan

Katsunori Fujii