| 摘要 |
The sachet is triangular in cross section decreasing upwardly from its base (2) to a peak (3). It is obtained by folding flexible sheet and sealing at three edges (7, 8, 9). The first edge extends from base to peak, two others (8, 9) form two of the three sides of the sachet base. An Independent claim is included for the method of packing, using a sheet folded and sealed as indicated, preferably by heat or ultrasound. |
