OPENING DEVICE AND APPARATUS FOR MOULDING AN OPENING DEVICE ON A SHEET PACKAGING MATERIAL

摘要

An opening device for a package made of a sheet packaging material—said sheet packaging material comprising at least a first layer and a second layer, and having a hole formed through said first layer and sealed by a cover portion of said second layer—is made of plastic material molded onto said cover portion, and in turn comprises a spout defining a pouring opening and a wall portion closing said pouring opening, said wall portion defining, together with said cover portion, a user-removable sealing portion of said spout, a weakening region being interposed between said wall portion and said spout and said cover portion covering said weakening region; a molding apparatus for molding an opening device on a sheet packaging material is also disclosed.

主权项

1) Opening device for a package made of a sheet packaging material, said sheet packaging material comprising at least a first layer and a second layer, and having a hole formed through said first layer and sealed by a cover portion of said second layer, said opening device being made of plastic material molded onto said cover portion, and in turn comprising a spout defining a pouring opening and a wall portion closing said pouring opening, said wall portion defining, together with said cover portion, a user-removable sealing portion of said spout, a weakening region being interposed between said wall portion and said spout, wherein said cover portion covers said weakening region.