| 摘要 |
PROBLEM TO BE SOLVED: To provide a paper container provided with a means to easily unseal a folding-in type pouring opening and the unsealing method thereof. SOLUTION: This paper container 1 is formed of a cardboard raw material coated with a thermoplastic resin on the whole front and rear races and provided with a folding-in type pouring spout at the gable roof-shaped top. The upper and lower two points which do not cross with respective crease lines 4, 5 and position near diagonal crease lines 5, are positioned in at least one triangular part of two right and left triangles 7, 8 partitioned by the lateral crease line 4 and the diagonal crease lines 5 on the spout panel 2 of the paper container 1. And the upper side is used as the upper cut end 10 and the lower side is used as the lower cut end 11. And half-cut lines 12 of a curved line or a straight line having a corner on the middle part is formed from the front face side of the container so as to expand against the diaginal crease line 5 and widen downward the width from the top of the expansive part. |
