| 摘要 |
PROBLEM TO BE SOLVED: To make a cap formed of an interior frame and an exterior frame easily separable by dipping it in water on disposal and to prevent such cap from being separated inadvertently by influences of waterdrops and moisture of the outside air while being used by a method wherein the interior frame and the exterior frame made up respectively of different materials are stuck together with a water-soluble adhesive. SOLUTION: For a cap A formed of an interior frame 1 and an exterior frame 2 made up respectively of different materials, the inner wall part 2a of the exterior frame 2 and the outer wall part 1a of the interior frame 1 are fixed together with a water-soluble adhesive, and openings 14 respectively equipped with lids 15 are provided at parts of the interior frame 1 with water passages each in a specified length leading from the openings 14 to the water-soluble adhesive provided. As the cap A is left as it is for a specified period of time while being filled with water poured from the openings 14, the water-soluble adhesive is melted by the poured water and the interior frame 1 made of synthetic resin and the exterior frame 2 made of metal become easily separable. |
