To provide a laminated material, a manufacturing method of the laminated material, a method for heat-sealing the laminated material and a packaging container; wherein the laminated material enables efficient running/using/operation of the whole of a packaging system by diverting or applying a part of different packaging systems regardless of the difference in packaging systems between aseptic packaging and chilled packaging, reduces energy or material and contributes to the reduction of a production cost.

The laminated material is a webbed one for the packaging container comprising a support layer 1 and a thermoplastic innermost layer 3. A conductive layer 2 laminated between the support layer 1 and the thermoplastic innermost layer 3 is provided to a region to be heat-sealed by high frequency induction heating so as to transfer the heat generated by induction heating to the innermost layer 3, where the conductive layer 2 is a thin film layer comprising a metallic conductive material.