| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a safe packaging body for heat treatment which is costless and capable of preventing the contents from flowing out even if the packaging body is held so as to turn the hut seam downward after release of pressure without greatly changing the pressure release structure or mechanism and without using special parts such as an opening/closing valve. SOLUTION: In a packaging body A whose hut seam part 4 where both sides are heat-sealed with each other by a specified width to form a hut seam is provided at a position shifted to one side, the hut seam part 4 is divided into an easily unsealable part 7 positioned at the contents side of the packaging body A and a complete seal part 8 connected to the easily unsealable part 7 and positioned at the outside of the packaging body A. An air passage 9 releasing the pressure in the body A to the outside is formed at a breadthwise appropriate position of the seal in the complete seal part 8.</p> |
