INKJET RECORDING INKSET AND INKJET RECORDING METHOD

• Main Authors: GOTOH, AKIHIKO, KOJIMA, MARIKO
• Format: Patent
• Language: English; French; German
• Published: 01.06.2011
• 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

The present invention provides an inkjet recording inkset including a black ink; and at least one color ink, wherein the black ink and the color ink respectively contains a coloring material, water, a water-soluble organic solvent and a surfactant, and wherein the black ink contains, as the coloring material, a water-dispersible carbon black having a hydrophilic group on its surface, which can be dispersed without using a dispersing agent, and only the color ink contains, as the surfactant, a fluorine surfactant expressed by Chemical Formula 1: Chemical Formula 1 where Rf represents a fluorine-containing alkyl group; R1 represents an anionic group; R2 represents a cationic group; and q represents a positive integer.