HEAT INSULATING PAPER CONTAINER, AND METHOD OF PRODUCING THE SAME

PROBLEM TO BE SOLVED: To provide a new heat insulating paper container which has foam larger than that of a low-melting thermoplastic synthetic resin film, and exerts sufficient heat insulation effect, and to provide a method of producing the same. SOLUTION: The heat insulating paper container is formed of a container body member 1 and a bottom plate member 2. In production of the heat insulating paper container, a high-melting thermoplastic synthetic resin film 4 is laminated on an inner wall surface of base paper 3 of the container body member 1 and the bottom plate member 2, and the low-melting thermoplastic resin film 5 is laminated on an outer wall surface of the base paper 3 of the container body member 1, followed by subjecting the low-melting thermoplastic resin film 5 to heat treatment and foaming. Herein the low-melting thermoplastic synthetic resin film 5 is obtained by mixing a low-density polyethylene and a copolymer of ethylene-α olefine. The method of producing the heat insulating paper container is also provided. COPYRIGHT: (C)2007,JPO&INPIT