| 摘要 |
PROBLEM TO BE SOLVED: To improve the build-up production capacity to be adhered by adhering an inner layer paper with heat insulation and strength resistance to an outer layer paper and integrating them with a cup body, and mating the integrated cup body with a body to insert the integrated inner layer paper and outer layer paper which is large in strength, repulsive in folding and soft in grip into the body. SOLUTION: In a constitution in which an inner layer paper 4 is interposed between a cup body 2 and an outer layer paper 3, the inner layer paper 4 is punched into various shapes, and the punched portions are folded outwardly and inwardly, or in one direction. Since the inner layer paper 4 between the cup body 2 and the outer layer 3 is formed of the folded inner layer paper 4 itself of cardboard, and large in strength, repulsive in folding, and soft in grip. Even when the inner layer paper is mated with the cup body 1, both insertion and adhesion are small in quantity in a condition where the outer layer paper 3 and the inner layer paper 4 are assembled in a conical shape, the assembly is facilitated, the production capacity is improved, and the cost is reduced.
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