Water-soluble azo compounds or salts thereof, ink compositions and colored products

• Main Authors: KAWAIDA YOSHIAKI, MORITA RYOUTAROU
• Format: Patent
• Language: Chinese; English
• Published: 09.05.2012
• 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

The invention relates to water-soluble azo compounds represented by the general formula (1) or salts thereof and ink compositions containing the same: (1) (wherein R is hydrogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, or sulfo; n is 1 or 2; m is an integer of 1 to 3; x is an integer of 2 to 4; and y is an integer of 1 to 3). The compounds or salts have high-clarity hues favorable to ink-jet recording and can give prints having high fastnesses. Further, the compounds are useful as yellow dyestuff capable of forming ink compositions excellent in storage stability and therefore suitable for ink compositions, particularly those for ink-jet recording.