RESIN FOR PRINTING INK AND PRINTING INK

摘要

A resin for printing inks which is a hydrocarbon resin modified by esterification with a long-chain aliphatic alcohol and having a melting point of 100 DEG C or higher, and has a solubility of 100 DEG C or lower, in terms of turbidity, in a hydrocarbon solvent having a boiling point of 200 DEG C or higher and consisting of one or more naphthenic and/or one or more paraffinic hydrocarbons having a content of aromatics of 3 wt.% or lower. The resin has satisfactory suitability for lithography comparable to that of conventional rosin-modified phenolic resins, and can be provided without using formaldehyde, undesirable to labor hygiene, i.e., without using a resol produced from formaldehyde.