| 摘要 |
PROBLEM TO BE SOLVED: To enable keeping a vessel under tight seal, make it easy to unseal, enable taking out the contents little by little, and allow one to be put upon another in a pile by jointing two paper cups at their mouth parts and providing a partially opening part in the top side of the one formed as a paper cup-shaped lid. SOLUTION: This vessel is obtained by jointing a body 1 and its lid 2, the two having mouth parts of the same diameter, at the flange 11 of the body 1 and at the flange 21 of the lid 2. The body 1 and the lid 2 are both paper cups lined with a thermoplastic resin. The diameter of the bottom of the body 1 differs in value from that of the top side 22 of the lid 2 so that, when put one upon another, the body and the lid are fitted together in a stabilized state either with the top side 22 of the lid 2 in the bottom of the body 1 or with the bottom of the body 1 in the top side 22 of the lid 2. The top side of the vessel, except a portion 26 of it, has for the periphery of a partial opening part a roulette, perforation, leading rule, or the like which makes the vessel structurally convenient, enabling it to be unsealed simply by pushing down the opening part, and in taking out the contents little by little. |
