| 摘要 |
PROBLEM TO BE SOLVED: To easily and rapidly break and unseal a packaged film by forming an unsealing knob protruded by the packaging film itself, to reduce the parts number, to simplify the manufacture, and to reduce the material cost in comparison with an unsealing means using other materials. SOLUTION: In a packaging body in which a work 2 is covered by a heat shrinkable packaging film 4, the packaging film 4 forms the unsealing knob 5 with the packaging film 4 by heat sealing portions thereof facing each other before the heat shrinking. |
