| 摘要 |
PROBLEM TO BE SOLVED: To provide a standing type packaging bag which can be torn along cutting lines by devising combination of cutting lines which are formed on the front and the rear of the packaging bag.SOLUTION: The packaging bag is formed of a front wall, a rear wall and a bottom wall sheet having an end edge heat-bonding section 2 on the facing end edges. On an outer layer 11 of the front wall sheet, a first cutting line 3 is formed which continues starting with an outer edge of the left end edge heat-bonding section 2A, to an outer edge of the right end edge heat-bonding section 2B located at the same position as the start point in a direction in parallel with the right and left end edge heat-bonding sections 2A and 2B. On the outer layer 11 of the rear wall sheet, a second cutting line 3' which continues starting with the outer edge of the left-bonding section 2A side end edge heat-bonding section, to the outer edge of the right end edge heat-bonding section 2B in the same manner as the first cutting line 3, while forming it at a different position from the first cutting line 3 in plan view. When the bag is torn along the first cutting line 3 and the second cutting line 3', a step difference is formed at the torn opening section of the standing type packaging bag. |
