| 摘要 |
The present invention addresses the problem of providing: a compound heat seal structure that, when heat-sealing a bag with a stacked area level difference, reliably seals even said level difference section and that can be easily opened; and a heat sealing method. The problem is solved by: a compound heat seal structure characterized in that the heat seal is provided as a peelable seal in a band shape on a bag and a liner heat seal is added as a peelable seal in said band-shaped peelable heat seal in the longitudinal direction thereof; and a heat-sealing method using same. |
