COLORED RESIN COMPOSITION AND INKJET INK PRODUCED BY USING THE SAME

• Main Authors: NOGAMI TAKAYUKI, TANAKA YOSHIKAZU, INAGAKI MASARU, TACHIBANA TOMOKO, IKEGAMI TOMONORI
• Format: Patent
• Language: English
• Published: 22.11.2007
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COLOUR PRINTING; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICS; POLISHES; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

PROBLEM TO BE SOLVED: To provide a colored resin composition having excellent surface smoothness and flatness in picture element and provide inkjet ink produced by using the colored resin composition. SOLUTION: The colored resin composition contains a pigment, a pigment derivative and a resin carrier and has viscosity of 3-200 mPa s (at a shearing rate of 100 (1/s)) at a solid concentration of ≥20 wt.% and <40 wt.%, a T.I. value (defined by the ratio (ηa /ηb ) of the viscosity ηa (mPa s) at a shearing rate of 10 (1/s) to the viscosity ηb (mPa s) at a shearing rate of 1,000 (1/s)) of 1-2, viscosity of 10-200 mPa s (under a condition shown above) and a T.I. value of 1-3 (under a condition shown above) at a solid concentration of ≥40 wt.% and ≤60 wt.%. COPYRIGHT: (C)2008,JPO&INPIT