Nippon Kayaku Kabushiki Kaisha

Nippon Kayaku Co., Ltd

Toppan Printing Co., Ltd.

Yoshiki Akatani

Yuji Suzuki

Yasuo Murakami

Tadahiko Tabe

Hiroyuki Matsumoto

Yasuo Shirasaki

Mariko Umeda

Katsunori Fujii

Shinsuke Shimizu

Takashi Yamauchi

Yutaka Ishii

Takaaki Kurata

Satoshi Ohkuma

Yasuyuki Demachi

Yoshiyuki Dejima

Noriko Asahi

Kiyoko Tanaka

A water-based inkjet ink for tampering prevention which readily allows detection of evidence of tampering by visual inspection using a variety of organic solvents on the written content of a printed article for financial securities or the like, a method for inkjet printing using the same, and a printed article. The water-based inkjet ink for tampering detection contains at least one type of disperse or oil-soluble dye which includes no cyano groups or azo groups, at least one type of dispersing agent, at least one type of water-soluble organic solvent and water.

Water-based inkjet ink for tampering detection, method for inkjet printing using same, and printed article

The present invention has an object to provide an ink for inkjet textile printing which has excellent fastnesses and causes less bleeding on a textile and to provide a low cost method for inkjet textile printing by using said ink; and relates to an ink for inkjet textile printing wherein the ink contains at least one kind disperse dye, a dispersing agent, water and at least one kind (referred to as A compound) of the compounds represented by the following formula (1): (wherein, n is an integer number of 1 to 12)and at least one kind compound (referred to as B' compound) selected from the group consisting of alkanediols having 3 to 5 carbon atoms and polypropylene glycols, as organic solvents, the total content of A compound and B&#x2032; compound is 12 to 50% by weight based on the total amount of the ink, and the ratio by weight of A compound to B&#x2032; compound is in the range of 5:1 to 0.7:1.

Ink for inkjet textile printing and an inkjet textile printing method using the same

A dye ink set for ink jet recording, which has a wide color gamut, particularly for the hue range of magenta, blue, and cyan, and which has good ejection stability properties. The ink set includes ink compositions of two colors, a magenta ink composition and a cyan ink composition which contain a dye, water, and a water-soluble organic solvent, and the magenta ink composition contains a compound represented by formula (1) below or a salt thereof. 

Ink set for inkjet recording, recording method, and colored body using same

Disclosed is a reactive dye ink exhibiting excellent ejection stability when used in a printer having an inkjet head for commercial use which requires a high-viscosity ink. The reactive dye ink has excellent storage stability and excellent fixability to textiles. Specifically disclosed is an ink composition containing at least one reactive dye serving as a coloring matter, which also contains water and a compound represented by formula (1) and having an average molecular weight of 340-2,200. (1) [In the formula, X, X, Xand Xindependently represent a hydrogen atom or a methyl group; and the sum of j, k, m and n is a number not less than 4 but not more than 40.]

Ink composition and textile printing method using the same

Disclosed is a dye-containing blue color composition for color filter, including a triarylmethane-based dye having a structure represented by the following formula (1): wherein R, R, R, R, Rand Reach independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms which may have a substituent, a phenyl group which may have a substituent or a benzyl group which may have a substituent, R, R, R, R, R, R, R, R, R, R, R, R, Rand Reach independently represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms which may have a substituent or a halogen atom and X represents a tristrifluoromethanesulfonylmethide anion.

Blue color composition containing dye, color filter and liquid crystal display device and organic EL display provided with the color filter

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

Water-based magenta ink composition and method of ink-jet recording

Thermally stable crystal modification of dyestuff, process for

Disclosed is a disperse dye composition comprising dyes of Formulae (I) and (II). ##STR1## Z.sub.1 is a halogen atom; R.sub.1 is a C.sub.1-4 alkyl group or a hydrogen atom; X.sub.1 and Y.sub.1 each are independently a chlorine atom or a bromine atom; R.sub.2 is a C.sub.1-4 alkyl group or a phenyl group. Using the composition, composite hydrophobic fiber materials can be dyed evenly, and the dyed materials have excellent color fastness.

Disperse dye composition and method for dyeing hydrophobic fiber

A disperse dye composition comprising one or more dyes represented by the formula: ##STR1## wherein X represents a chlorine or bromine atom; Y a hydrogen atom or an alkoxy or alkoxyalkoxy group; and each of R.sub.1 and R.sub.2 independently a hydrogen atom, a linear or branched unsubstituted or substituted alkyl group, an allyl group or a cycloalkyl group, provided that each of the alkyl and alkoxy groups has 1 to 4 carbon atoms, and

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Tokyo, Japan

Yoshiki Akatani