A method for producing a laminated material, which comprises providing a
raw material roll containing a support layer, drawing out a support layer
in a web form from the raw material roll, transferring a silver-based
thin film layer on an inner face of the inside of the support layer
including a zone to be heat-sealed by the high frequency induction
heating for the formation of a container, prior to or after the
transferring step, laminating a heat-sealable inner layer on the inside
of the support layer, printing the design of the container on the outside
of the support layer in a long web form, and forming one or more
thermoplastic layers of the same type or different types, at the same
time or sequentially, on the outside and the inside of the printed
support layer in a web form. The method allows a sealing zone to be
formed so as to have an antibacterial atmosphere.