Azo compound and ink containing same

• Main Authors: AIKYO HIROYUKI, TANAKA YUKI, TAKEDA UTAKO, ISHIDA MIO, ICHINOSAWA SHOKO
• Format: Patent
• Language: Chinese; English
• Published: 05.02.2014
• Subjects: ADHESIVES; ADVERTISING; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; CRYPTOGRAPHY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DISPLAY; DISPLAYING; DYES; EDUCATION; FILLING PASTES; FREQUENCY-CHANGING; HETEROCYCLIC COMPOUNDS; INKS; LABELS OR NAME-PLATES; LAKES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC CHEMISTRY; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PHYSICS; POLISHES; SEALS; SIGNS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; USE OF MATERIALS THEREFOR; WOODSTAINS

The purpose of the invention is to provide an ink containing an azo compound having excellent solubility in solvents and a high extinction coefficient. The invention is an ink containing an azo compound and a solvent of which the dielectric constant at a measurement frequency of 1 kHz and 22 C is 3 or less and solubility in water at 25 C is 20 mg/L or less. The azo compound is represented by general formula (I).