| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce costs of a packaging material and a packaging operation. <P>SOLUTION: A bag containing extract materials 3 provided with a liquid discharge port 8 at a bottom surface 4 in a gazette form is formed with a gas barrier sheet, and the liquid discharging port 8 is closed with a filter 11 to easily peelabily heat seal surfaces overlapped each other in a state that the bottom surface 4 has been folded in a sealing region surrounding the liquid discharging port 8 so as to prevent external air from entering from the liquid discharge port 8 to the inside thereof. Accordingly, only the containing extract materials bag 3 can fulfill both gas barrier function for an extract material stored and extracting function of extracting the extract material in the containing bag 3 to obtain an extract, so that packaging may be conducted with one packaging material. Cutouts 13 are provided in a side surface 5 of the bag 3, and these are engaged with an edge of a cup to permit use by the so-called drip-on type. <P>COPYRIGHT: (C)2003,JPO |
