Process for strengthening containers for liquids, strengthening ring and containers with a strengthening ring

摘要

The invention relates to a process for strengthening a container (1) for liquids, said container comprising a bowl (3) and at least one cylindrical skirt (51, 53) extending from the bowl, said skirt having a rim portion (51a, 53a), characterized by the fact that it comprises positioning a strengthening ring (100) within said skirt perpendicular to the axis of said skirt (51). The invention deals also with the strengthening ring (100).