COLORED DISPERSION FOR INKJET, INKJET RECORDING INK, AND INKJET RECORDING METHOD

• Main Authors: KAJI Yuki, TAKEDA Michiaki, IWAMI Maiko, MATSUMURA Aiko
• Format: Patent
• Language: English; French; German
• Published: 07.06.2023
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COLOUR PRINTING; CORRECTING FLUIDS; CORRECTION OF TYPOGRAPHICAL ERRORS; DYES; FILLING PASTES; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; INKS; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

Provided are a colored dispersion for inkjet and a method for producing the same, the colored dispersion comprising a colorant, a dispersant, a tellurium compound, and water, wherein: the dispersant is an A-B block polymer; monomers constituting an A block are (meth)acrylic acid and butyl (meth)acrylate; the content of the (meth)acrylic acid in the A block is 26-42 mass%; a monomer constituting a B block includes cyclohexyl (meth)acrylate; the acid value of the dispersant is 100-159 mg KOH/g; and the mass-average molecular weight of the dispersant is 10,000-50,000. Moreover, provided are: an inkjet recording ink containing said dispersion; an inkjet recording method using said ink; recording media to which said ink adheres; and an inkjet printer equipped with a container containing said ink.