PROBLEM TO BE SOLVED: To solve a problem that an instrument for seal such as a conventional seal ink case is user-unfriendly since a mat for seal is integrated with an instrument body and inseparable.;SOLUTION: The cinnabar seal ink case 1 is configured so that a fitting recessed part 6 is formed at the bottom outside a cinnabar seal ink case body 2, and a mat 7 for seal is removably fitted to the fitting recessed part and held by the elasticity and friction of the mat for seal. A finger hanging section is formed on at least a part of the edge of the mat for seal or at least a part of the edge of the fitting recessed part of the cinnabar seal ink case body, so that the removal of the mat for seal from the fitting recessed part can be performed easily.;COPYRIGHT: (C)2011,JPO&INPIT
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