WATER-SOLUBLE AZO COMPOUND OR SALT THEREOF, INK COMPOSITION, AND COLORED ARTICLE

• Main Authors: SAKUKI JUNYA, NAGATSUKA SHINYA
• Format: Patent
• Language: English; Japanese
• Published: 20.04.2017
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COLOUR PRINTING; CORRECTING FLUIDS; CORRECTION OF TYPOGRAPHICAL ERRORS; DYES; FILLING PASTES; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; INKS; LAKES; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide a water-soluble yellow dye which has high solubility in water, has excellent fastness properties including water resistance, moisture resistance, ozone gas resistance, scratch resistance and light resistance, and is superior particularly in color-developing properties (printing density) and color saturation, and a yellow ink composition for various recording purposes, particularly inkjet recording, which contains the yellow dye.SOLUTION: The present invention relates to a water-soluble azo compound represented by formula (1) or salt thereof (Y is O or S; x is an integer of 2-4; Ris H, a halogen atom, an amino group or the like; Ris H, a C1-C4 alkyl group, a C6-C20 aryl group, a C1-C4 alkylcarbonyl group or the like).SELECTED DRAWING: None 【課題】水に対する溶解性が高く、耐水性、耐湿性、耐オゾンガス性、耐擦性及び耐光性等の各種堅牢性に優れ、又特に発色性（印字濃度）や彩度に優れる水溶性の黄色色素及びそれを含有する各種記録用、特にインクジェット記録用のイエローインク組成物の提供。【解決手段】式（１）で表される水溶性アゾ化合物又はその塩。（ＹはＯ又はＳ；ｘは２〜４の整数；Ｒ１はＨ、ハロゲン原子、アミノ基等；Ｒ２はＨ、Ｃ１−Ｃ４アルキル基、Ｃ６−Ｃ２０アリール基、Ｃ１−Ｃ４アルキルカルボニル基等）【選択図】なし