Carton with beaded rim and method of making the bead

摘要

A carton having a side wall 34 and a base is manufactured by a method which involves the steps of curling the upper edge of the side wall 34 around to form a bead and then compressing the bead to flatten it against the side wall to form a rim 36. The carton is preferably formed from a rectangular or square piece of card with a seam formed by adhering opposite edges and closure means in the form of a sealing membrane may be provided. A plastic plug may also be provided.