| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the user from feeling uncomfortable even when the corner part of a sealed bag filled with sauce or the like hits the user. <P>SOLUTION: A film-like packaging material is folded so that a fold-back portion may be formed on one side thereof, and four sides of the overlap body of the folded film-like packaging material are sealed by heat-sealed portions 8, 9, 10 and 11, then, the content is enclosed therein. The heat-sealed portion 9 is formed on the fold-back portion on the one side so that a pipe-like non-heat-sealed portion 12 extending through both ends of the fold-back portion may be left on the fold-back portion, and the heat-sealed portion 8 is formed on the side opposite to the one side so that the non-heat-sealed portions 13 may be left along both ends of the opposite side. <P>COPYRIGHT: (C)2012,JPO&INPIT |
