| 摘要 |
<p>PURPOSE: To provide an easily unsealable paper container for liquid which can be easily unsealed when in use only with fingers and in which there is no possibility of leakage of contents, i.e., liquid, during the distribution and storage. CONSTITUTION: Sealing notches 30 each are provided in each edge of top end sealing parts A of a left side panel 120 and right side panel 140 of a blank board 100 respectively at positions which are symmetrically provided with respect to a fold line at the center of the top end sealing part, and a cut line part 31, in which short longitudinal cut lines are parallelly arranged at fine pitches in a lateral direction, is provided at the edge of each of the notches 30. And a cut line is formed in a paper board layer 102, to which a outside film layer 101 is attached, in a U-shape symmetrical with respect to the central fold line through the sealing part A and a top part B, and thereafter a half cut line 20, which is formed by pasting an inside laminated film layer 103 to the lower part of the paper board, is passed through the cut line so that the end of the line 20 is connected to each of the notches.</p> |
