INK BINDER, INK COMPOSITION AND BIODEGRADABLE PRINTING FILM

摘要

PROBLEM TO BE SOLVED: To provide a binder capable of showing biodegradability similarly to a molded article and a film as a base material even in the case of disposal to the environment after use as a printed matter and constituting an ink satisfying high printing requirement such as full color process printing. SOLUTION: A biodegradable ink binder (A) consisting of 50-80 wt.% of a nitrocellulose (a), 5-25 wt.% of an alkyd resin (b) and 15-45 wt.% of a plasticizer (c).