INK COMPOSITION FOR INK JET PRINTING AND PRINTING METHOD

• Main Authors: SAO AKIHITO, IKEDA HIRONARI
• Format: Patent
• Language: English
• Published: 14.10.2010
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COLOUR PRINTING; CORRECTING FLUIDS; CORRECTION OF TYPOGRAPHICAL ERRORS; DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM; DYEING OR PRINTING TEXTILES; DYES; FILLING PASTES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; INKS; LAKES; LAUNDERING; 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; TEXTILES; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide an ink composition for ink jet printing with little blurring, having preferable water solubility, stability, printing characteristics, color, sharpness, light resistance and other kinds of solidity. SOLUTION: The ink composition used for an ink jet printing method includes at least a water-soluble dye having an anthraquinone skeleton with solubility to water at 30°C of 50 g/L or less, and one or more kinds of polyoxyethylene alkyl ethers of a 11.4-18.8 HLB value, represented by formula (I): HO(-CH2CH2O-)nRa, wherein n is 4-100, and Ra is a 8-24C saturated alkyl group. COPYRIGHT: (C)2011,JPO&INPIT