Abstract: The invention relates to a re-closable packaging featuring a container and a cover. The container features a support layer bearing two opposed faces, the innermost face of which is joined to a complexable layer by optionally deposing the face on an outermost face of an optional bonding layer bearing two opposed faces. The optional bonding layer is placed adjacent to a structure featuring: (1) a complexable layer bearing two opposed faces, the innermost face of the optional bonding layer being placed adjacent to the outermost face of the complexable layer, the innermost face of the complexable layer is placed adjacent to an outermost face of (2) a pressure-sensitive adhesive layer bearing two opposed faces, the innermost face of the pressure-sensitive adhesive layer is placed adjacent to a first face of (3) a tearable-welding layer bearing two opposed faces.

Abstract: A multilayer structure, for a re-closable packaging which can be readily and effectively opened and then re-sealed is provided comprising a central pressure-sensitive adhesive layer and two outer layers, one of which is a tearable welding layer, the central adhesive layer comprising two sub-layers and the structure being able to be obtained by collapsing the co-extrusion bubble, together with a packaging comprising at least one tearable film having this symmetrical multilayer structure, and a process for producing the structure and the packaging.