| 摘要 |
PROBLEM TO BE SOLVED: To provide a sample keeping bag excellent in printing appearance and printing durability, not causing the contamination on its printing surface due to the impregnation of the liquid component contained in a sample, preventing the slip-down of the sample at the time of sampling, simple in its constitution and its manufacturing method, easily opened at the time of insertion of the sample, enhanced in the easiness of sampling work and suitable for a traceability system. SOLUTION: The sample keeping bag is constituted by superposing sheets 1 based on polyolefin one upon another and has a sheetlike form. The definite section in the outer peripheral edges of the superposed sheets 1 becomes the opening part 2 of the bag and the superposed sheets 1 are mutually connected in the outer peripheral edges other than the outer peripheral edges of the superposed sheets 1 to constitute the bag having the sheetlike form. The mutual connection of the sheets 1 at least in one of the side edge parts 3a and 3b holding the opening part 2 is achieved by the folding-back of the sheets 1. COPYRIGHT: (C)2007,JPO&INPIT
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