Stratified packing sheet again allowing the closure and packaging that behave.

摘要

Stratified packing sheet, of the type comprising a primary layer (24) associated with a weldable layer (26) between which is interposed, in at least one marked zone, a layer (28) of a permanent adhesive, characterized in a designated area (22A) of the sheet where the permanent adhesive is present, the solderable layer (26) comprises, on both sides of a zone (22A) intended to be welded, at least one weakening line (30A, 30B) the solderable layer (26) favoring its rupture along said lines.