| 摘要 |
A sealing method for connecting portions (2, 3) of heat-seal dielectric sheet material, the method including the steps of superimposing the portions (2, 3) for sealing one on top of the other; generating a substantial vacuum between the two superimposed portions (2, 3) by exposing the portions (2, 3) to an electric field; and sealing the two portions (2, 3) together by exposing them to a heat source (13). <IMAGE> |
