Ink composition, inkjet recording method, printed material, method for producing planographic printing plate, and planographic printing plate

• Main Authors: NAKAMURA, IPPEI, SUGAI, MASAHARU
• Format: Patent
• Language: English; French; German
• Published: 26.12.2012
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; LINING MACHINES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PRINTING; PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES; STAMPS; TRANSPORTING; TYPEWRITERS; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention provides an ink composition comprising (A) a polymerization initiator; (B) an ester or amide of (meth)acrylic acid having a 1,3-dioxolane ring skeleton or a 1,3-dioxane ring skeleton; and (C) a colorant; wherein the content of component (B) in the ink composition is in a range of 3 to 35% by mass on the basis of the total mass of the ink composition. The invention further provides an inkjet recording method and a method for producing a planographic printing plate, each of which includes at least (I) ejecting the ink composition onto a hydrophilic support and (II) curing the ink composition by irradiating the ejected ink composition with active radiation so as to form a hydrophobic image region on the hydrophilic support. The invention furthermore provides a planographic printing plate formed by the method for producing a planographic printing plate.