PURPOSE: To obtain a cover material having superior electrostatic characteristics and transparency, a high adhesion to a synthetic resin-made container, and also a good releasability therefrom and never blocking even when it is wound in a reeled state.

CONSTITUTION: A cover material 1 is provided with a biaxially oriented resin layer 2 made of a resin other than a polyester resin and a heat sealant layer in which conductive fine powder containing a barium sulfate as a main agent is dispersed in a thermoplastic resin that is a polyester resin. An intermediate layer 4 provided between the biaxially oriented resin layer and the heat sealant layer adjacently to the heat sealant layer is made of a resin composition composed of 30-70wt.% ethylene-α-olefin copolymer having a density of 0.915-0.940g/cm3 and 70-30wt.% styrene-butadiene block copolymer of 50-90wt.% styrene and 50-10wt.% butadiene.