The invention relates to various aspects of HF-welding methods and HF welding equipment and to a bag produced with an HF-welding method. In tools used for HF welding, it is proposed that the tool is supplemented by an electrically conductive layer, which among other advantages enables the quality of a welded connection, in particular of especially thin films, to be significantly improved.

The invention relates to various aspects of HF-welding methods and HF welding equipment and to a bag produced with an HF-welding method. In tools used for HF welding, it is proposed that the tool is supplemented by an electrically conductive layer, which among other advantages enables the quality of a welded connection, in particular of especially thin films, to be significantly improved.