| 摘要 |
<p>PROBLEM TO BE SOLVED: To maintain excellent sanitary condition of a pack container in a distribution step, and to prevent illegal unsealing. SOLUTION: Ridge-like bonding parts 7 of flap pieces 3 to 6 for sealing a spout of a pack container body 2 are sealed by a sealing member. The sealing member 9 is formed of a heat-shrinkable resin film, and an outer peripheral piece part expanded from the outer peripheral part and overlapped thereon is subjected to the shrinking to pack the ridge-like bonding parts 7 in a sealed condition.</p> |
