| 摘要 |
PROBLEM TO BE SOLVED: To surely and largely open the mouth of a bag attached to a supporting tool and to stably keep an opened state by annularly connecting and folding thin and long paper, attaching the bag for extraction to the inside and folding the part to the inside in two stages by a fold provided on an upper part beforehand. SOLUTION: This beverage bag 1 is composed of the supporting tool 3 and the bag 2 for extraction and the supporting tool 3 is formed by folding back the upper half of a sheet 4, stacking it on a lower half and thermally melt- sticking a tab for sticking. Then, the bag 2 is welded to the inner side 16 of the supporting tool 3. At the time of use, the part of the fold 9 at the upper part of both sides of the supporting tool 3 is pushed in downwards and the part continuous to the front and back sheets 4 is folded back like a hinge with the fold 9 as a shaft. Also, the tucks of the two stages are formed at the part of the two triangles constituted of the folds 6-8 as well accompanying it. Then, such a supporting tool 3 is placed on the edge of a coffee cup or the like, the appropriate amount of coffee grains are put in the bag 2, hot water is poured and contents are extracted. |
