LIQUID INK AND PRINTER

• Main Authors: TANUMA CHIAKI, OTSU KAZUHIKO, GOKOCHI TORU, AKIYAMA RYOZO, HIROKI MASASHI, ENDO YOSHITAKA
• Format: Patent
• Language: English
• Published: 08.01.2004
• Edition: 7
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COLOUR PRINTING; COMPOSITIONS BASED THEREON; CORRECTING FLUIDS; CORRECTION OF TYPOGRAPHICAL ERRORS; DYES; FILLING PASTES; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; INKS; LINING MACHINES; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; SELECTIVE PRINTING MECHANISMS; STAMPS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide a liquid ink needing neither use of any organic solvent nor any large-scale exposure system in obtaining high-quality prints. SOLUTION: The liquid ink comprises a photo-acid generator which generates an acid on light irradiation, a color component and at least one solvent subject to polymerization in the presence of the acid. In this liquid ink, it is preferable that the content of the photo-acid generator is 1-10 pt(s). wt. based on 100 pts. wt. of the solvent, the color component is a pigment, and the solvent contain ≥50 pts. wt. of an acid-polymerizable compound having alicyclic and/or aliphatic skeleton(s) with a viscosity of ≤50 mPa.s at ordinary temperatures and pressures and a boiling point of ≥150°C. COPYRIGHT: (C)2004,JPO