PACKAGING BAG
PROBLEM TO BE SOLVED: To provide a packaging bag which is tearable without deviating from cutting lines by devising the shapes and combination of the cutting lines formed on the front and rear surfaces of the packaging bag.SOLUTION: A packaging bag is formed with a laminate body having an outer laye...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a packaging bag which is tearable without deviating from cutting lines by devising the shapes and combination of the cutting lines formed on the front and rear surfaces of the packaging bag.SOLUTION: A packaging bag is formed with a laminate body having an outer layer, an intermediate layer and an inner layer with right and left edge heat-bonded portions at the opposing edges. On the one side of the outer layer of the laminate body, first continuous cutting lines, being at the same position in the vertical direction parallel with the left and right edge heat-bonded portions and having a starting point and an ending point on either of the right and left outer edges, are formed. On the other side of the outer layer, second continuous cutting lines, being at the same position in the vertical direction parallel with the left and right edge heat-bonded portions and having a starting point and an ending point on either of the right and left outer edges, are formed at a different formation position in a plane view from the first cutting lines. When the bag is opened by tearing in a horizontal direction at the first cutting lines and the second cutting ines, a level difference is generated at the torn opened portion.
【課題】 包装袋の表裏に形成する切目線の形状およびその組み合わせを工夫することにより、切目線から外れることなく引裂くことができる包装袋を提供することである。【解決手段】 対向する端縁に左右端縁熱接着部を有する外層と中間層と内層とを有する積層体からなり、前記積層体の一方の外層に、左右端縁熱接着部に平行する上下方向の位置を同じくし、左右いずれかの外縁に起点と終点を有する連続する第1切目線を形成し、前記他方の外層に、左右端縁熱接着部に平行する上下方向の位置を同じくし、左右いずれかの外縁に起点と終点を有する連続する第2切目線を平面視で前記第1切目線と形成位置を異にして形成し、前記第1切目線と第2切目線から左右方向に引裂き開口した際に、引裂き開口部に段差を生じさせることを特徴とする包装袋。【選択図】 図1 |
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