| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat sealing method for forming a plurality of heat-sealed parts having different heat sealing strength through a single heat sealing operation. <P>SOLUTION: In the heat sealing method for a package, the package includes a packaging container for storing content therein, and a lid which closes the opening of the packaging container, and is heat-sealed; the package including a plurality of heat sealing parts is arranged just under the heat sealing position of the heat sealing device 1; next, a heat sealing head including a plurality of sealing head parts 17 and 18 is moved down from a standby position to the heat sealing position; then, the sealing head parts 17 and 18 are independently driven, thereby, each of the heat sealing parts 17 and 18 of the package is pressurized with a pressurizing force different for each of the sealing head units 17 and 18, and simultaneously, heat-sealed, next, the heat sealing head is moved upward to the standby position, then, the package with the opening of the packaging container heat-sealed with the lid is discharged. <P>COPYRIGHT: (C)2012,JPO&INPIT |
