INK COMPOSITION EXCLUDING HARMFUL COMPONENTS AND HAVING ABSORPTION PROPERTY OF ELECTROMAGNETIC WAVES

摘要

An ink composition is provided to ensure anion emission effect and electromagnetic wave adsorption effect, and to suppress the emission of the harmful material from printed articles when being printed on materials. A method for manufacturing an ink composition comprises the steps of: reacting queous alcohol, coloring agent, nitric acid cellulose resin and butyral resin at 50-55 ‹C and aging the reaction product to prepare a binder dispersion; adding zeolite, anionic liquefied material and antimicrobial agent as additives to the binder dispersion to impregnate the binder dispersion; stirring and gelling the impregnated binder mixture; and aging the gelled mixture at a low temperature.