PURPOSE: The title composition that is composed of an aliphatic hydrocarbon and/or alicyclic hydrocarbon solvents, wax soluble in the solvent and a pigment, thus being suitable for writing on the surfaces treated with paraffin or silicone resins.

CONSTITUTION: (A) a resin such as oligomers of aliphatic or alicyclic hydrocarbon of relatively low polymerization degree or their copolymer and (B) a wax soluble in the following solvent such as rice wax or paraffin wax are added to (C) an aliphatic hydrocarbon and/or an alicyclic hydrocarbon solvent, then (D) pigments are admixed to obtain the objective ink composition. The amount of component A used is preferably 58W70pts.wt., component B, 5.0W20pts.wt.; C, 1.5W3.0pts.wt.; component D, 8.0W20pts.wt.