| CPC B65D 77/38 (2013.01) [B65D 65/40 (2013.01); B65D 77/12 (2013.01)] | 10 Claims |
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1. A packaging bag comprising:
a first laminated film portion on a front surface side;
a second laminated film portion on a back surface side, that is pasted to the first laminated film portion; and
a cutting guide band extending in a band shape along a transverse direction from one side end portion toward an other side end portion on each of a front surface and a back surface,
wherein the cutting guide band includes, in order from an upper end portion side,
a first guide band having a plurality of first cut lines that are inclined at an angle with respect to the transverse direction, and that are arranged parallel to each other;
a second guide band having a plurality of second cut lines that are perforated, that are inclined at an angle in a direction opposite a direction of the first cut lines with respect to the transverse direction, and that are arranged parallel to each other at intervals; and
a third guide band having a plurality of third cut lines that are inclined at an angle in a same direction as the direction of the first cut lines with respect to the transverse direction, and that are arranged parallel to each other,
the cutting guide band has a fourth cut line between the first guide band and the second guide band and/or between the second guide band and the third guide band, the fourth cut line being perforated and extending along the transverse direction,
the first cut lines, the second cut lines, the third cut lines, and the fourth cut line are spaced apart from each other,
the first cut lines, the second cut lines, and the third cut lines on the front surface are inclined in directions opposite directions of the first cut lines, the second cut lines, and the third cut lines on the back surface with respect to the transverse direction, respectively, and
a disposition of the fourth cut line is different between the front surface and the back surface, so that
the front surface has the fourth cut line between the second guide band and the third guide band, and when viewed along the transverse direction, both the second cut lines and the third cut lines are inclined toward the fourth cut line, and
the back surface has the fourth cut line between the first guide band and the second guide band, and when viewed along the transverse direction, both the first cut lines and the second cut lines are inclined toward the fourth cut line.
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