PROCEDIMIENTO E INSTALACION PARA CERRAR MEDIANTE UNA LINEA DE TERMOSOLDADURA LA ABERTURA DE UN SACO O BOLSA DE MATERIA PLASTICA FLEXIBLE LLENO DE UN PRODUCTO

摘要

A process and apparatus are described for closing, by means of a line of heat-welding, the opening in a flexible plastic bag filled with a product; a slack is provided in the part of the bag below the line of heat-welding immediately before the heat-welding is carried out.