TOOL AND METHOD FOR HEAT SEALING LIDSTOCKS TO PLASTIC CONTAINERS

摘要

A heat sealing tool for sealing a lidstock to a rigid polymeric container comprising a well and a flange with a curved upper sealing surface and a lower surface wherein the tool comprises a first plate adapted to contact the lower surface of the flange and a second plate adapted to press the lidstock against the sealing surface of the flange, wherein the second plate is curved with substantially the same curvature as the sealing surface of the flange.