| 摘要 |
<P>PROBLEM TO BE SOLVED: To protect a sheet-like laver and a rice ball from external factors such as an external pressure during handling from manufacturing of a package, to eating the rice ball through the distribution process to selling, and an unsealing operation of a bag when the rice ball is eaten while the amount of use of a packaging material is suppressed. <P>SOLUTION: A lateral direction sealing part 24 formed by heat welding respective end edge parts of a sheet-like bag body 18 overlapped above the rice ball 22 in the bag 20 is extended over both left and right end edges of the bag 20. Longitudinal direction sealing parts 26 and 26 formed by heat welding the sheet-like bag body 18 overlapped on both left and right sides placing the rice ball 22 between them in the bag 20 are extended in the longitudinal direction so as to intersect the lateral direction sealing part 24. Turning-in parts 34 turned-in upward are formed on both left and right end parts being a bottom face of the bag 20. A gas is sealed into a first sealing room which is partitioned in the sheet-like bag body 18 and in which the sheet-like laver 16 is stored under a sealed condition. <P>COPYRIGHT: (C)2011,JPO&INPIT |
