Patent
Polymeric dye having xanthene skeleton and water-base ink composition containing this dye
Kaneko Tetsuya,Nagai Kiyofumi +1 more
TLDR
In this paper, the authors presented a method to obtain the dye which shows a magenta color of high color tone when dissolved in water and improved in solubility, storage stability and light resistance by chloro-sulfonating a xanthene dye and bonding the product of chlorosulfonation with polyallylamine.Abstract:
PURPOSE:To obtain the dye which shows a magenta color of high color tone when dissolved in water and is improved in solubility, storage stability and light resistance by chloro-sulfonating a xanthene dye and bonding the product of chloro-sulfonation with polyallylamine. CONSTITUTION:Acid Red of formula I is reacted with thionyl chloride in dimethylformamide to obtain a brown product of formula II. This product is reacted with a polyallylamine of formula III to obtain a polymeric dye comprising xanthene structural units of formula IV [wherein x is -(CH3)p- or -(CH3)p- CO-; R to R are each H or (un)substituted 1-4C alkyl; X and X are each sulfo or sulfonate; Y is carboxyl or carboxylate; k is 0-2; l+m=0-2; n is 20-300; and p is 0-5, provided that k and l are numbers which must not be 0 simultaneously].read more
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Colored curable composition, color filter, method for producing the same, solid-state imaging element, liquid crystal display device, and dye polymer
TL;DR: In this article, the problem of providing a colored curable composition containing a dye polymer, the composition having excellent color purity, light resistance, heat resistance and solvent resistance, causing little color migration, and allowing formation of a cured film with good pattern formability.
Patent
Polymer coloring matter, its production and ink jet recording liquid
TL;DR: In this article, the objective polymer coloring matter of the formula [D is a xanthene-based coloring matter obtained by oxidatively coupling pyrazolotriazole with an aromatic amine derivative, L is CONH or COO; X 1 and X 2 are each H, a (substituted) carbamoyl, carboxyl or a sulfoalkoxycarbonyl with the proviso that at least one of X1 and X2 is a group without H; R 1 to R 3 are each methyl; Z is a
Patent
Printing ink and printing using the same
Kiyofumi Nagai,Kojima Akio,Igarashi Masato,Konishi Akiko,Mochizuki Hirotaka,Masayuki Koyano,Yamada Ikuko,Tsuyuki Takanori +7 more
TL;DR: In this paper, a printing ink consisting mainly of a water-dispersible or water-soluble colorant, water and a water solvable organic solvent is used.
Patent
Inkjet printing method, inkjet ink, ink cartridge, and colored fabric
TL;DR: In this article, an inkjet printing method including at least a step of directly printing an ink jet ink containing an aqueous dispersion of a dye polymer having a repeating unit containing a structure derived from a dye on a fabric by an ink-jet method was presented.
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Method for producing kaolin pigment dispersion for oil printing, kaolin pigment dispersion for oil printing obtained by the production method, and use thereof
TL;DR: In this paper, a method for producing a kaolin pigment dispersion for oil printing, where the pigment does not flow out from the inside of an ink in the printing using dampening water of strong acidity or alkalinity so that the blot of the prints can be prevented, is presented.