Water-based dispersion of fine coloured resin particles for stable ink

• Main Authors: IWARA, ATSUSHI, TANO, GUNMA, JP, SAKURAI, KIYOKAZU, KODAMA, SAITAMA, JP, IDOGAWA, HIROYUKI, URAWA, SAITAMA, JP, OGIWARA, YASUAKI, URAWA, SAITAMA, JP
• Format: Patent
• Language: English; German
• Published: 05.03.1998
• Edition: 6
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF MATERIALS THEREFOR; WOODSTAINS

Water-based dispersion liquid containing fine coloured resin particles for water-based inks can be prepared by emulsion polymerisation of a vinyl monomer, which has an acid functional group and contains a dissolved water-soluble basic dye, in the presence of a polymerisable surfactant. Also claimed are ink, writing ink and ink jet printing ink compositions containing this dispersion, a water-soluble organic solvent and water.