SAETT ATT FOERSEGLA SAMMAN ARKFORMADE MATERIAL SAMT ANORDNING FOER UTFOERANDE AV SAETTET

摘要

Two sheets of packaging material at least one of which has a plastic surface on at least one side are sealed together by moving them past a vibrating heater block which vibrates in a plane normal to the plane of the sheets. The sheets are located between the vibrating heater block and a support for these.