| 摘要 |
PROBLEM TO BE SOLVED: To reduce a curl of an unsealing tab, provide an improved the appearance, and improve unsealing characteristics. SOLUTION: In an airtight packing container with a flange which is filled with contents and in which a sheet-shaped cover material is put on the flange so as to be heat-sealed, the cover material is composed of a laminate of a simultaneous biaxially stretched polyamide film manufactured by a tenter method and a polypropylene sealant film having easy-peel property, and an unsealing tab 2 is provided on a cover 1 in a width direction (TD) at the manufacturing of the polyamide film. |
