LAMINATED MOLDING OF HEAT INSULATING PAPER SHEET AND MANUFACTURING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a multi-layered laminated molding of a heat insulating paper sheet which shows a high basis weight and rigidity and also have a three- dimensional curved surface and heat insulating properties. SOLUTION: At least two or more layers of paper base materials 1a and 1b are partially bonded together by forming a non-adhesive part 4 in such a state that a film of a thermoplastic resin is interposed between the layers of the paper base materials 1a and 1b. Further, the paper base materials 1a and 1b and the film are bonded and molded, in a three-dimensional form, in one piece at the bonded part 3.