INK COMPOSITION FOR PRINTING, PAPER CONTAINER MATERIAL USING THE INK COMPOSITION, AND HEAT INSULATING FOAMED PAPER CONTAINER

摘要

An ink composition having a colorant; a binder resin; and a solvent; wherein the elongation ratio of the binder resin is 400% to 3,000%; wherein the binder resin comprises a urethane resin and a vinyl chloride/vinyl acetate copolymer, and the mixing ratio of the urethane resin:vinyl chloride/vinyl acetate copolymer relative to the total weight of the urethane resin and the vinyl chloride/vinyl acetate copolymer is 50:50 to 99:1; and wherein the urethane resin comprises a urethane-urea resin that is obtained by a process comprising reacting dibutylamine and a urethane prepolymer obtained by a process comprising reacting a polymeric polyol component having a number average molecular weight of 500 to 10,000 and an organic diisocyanate component having terminal isocyanate groups. A heat insulating foamed paper container material having at least one print pattern formed from said ink composition.