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

• Main Authors: SAKUKI JUNYA, NAGATSUKA SHINYA
• Format: Patent
• Language: English; Japanese
• Published: 23.09.2016
• 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 pigment that has high solubility in water and is excellent in various fastness such as water resistance, moisture resistance, ozone gas resistance, abrasion resistance and light resistance of an image, and also excellent in color development and chroma, and a yellow ink composition for various recordings, especially inkjet recording, containing the same.SOLUTION: The present invention provides a water-soluble azo compound represented by formula (1) or salt thereof (Y is O or S; Q is a halogen atom; x and z independently represent an integer of 2-4; n and m independently represent an integer of 1-6; R is H, an alkyl group, an aryl group, an alkylcarbonyl group, an arylcarbonyl group, an alkylsulfinyl group, an arylsulfinyl group, an alkylsulfonyl group or an arylsulfonyl group).SELECTED DRAWING: None 【課題】水に対する溶解性が高く、画像の耐水性、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、また発色性や、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；Ｑはハロゲン原子；ｘ及びｚは各々独立に２〜４の整数；ｎ及びｍは各々独立に１〜６の整数；ＲはＨ、アルキル基、アリール基、アルキルカルボニル基、アリールカルボニル基、アルキルスルフィニル基、アリールスルフィニル基、アルキルスルホニル基又はアリールスルホニル基）【選択図】なし