Tetra Laval Holdings & Finance S.a.

Tetra Alfa Holdings Sa

Bengt Bjorck

Lars C Carlsson

Ingemar Ohlsson

Packaging material for self-supporting packaging container walls includes two material layers that are fixed at a given spacing from one another. The two material layers define an interjacent chamber which is filled with gas under pressure. The material is produced by the material layers being sealed to one another over a portion of their surface such that a chamber is formed which is filled with, for example, air under pressure.

Packaging material and a method for its manufacture

The disclosure relates to a method of providing a liquid package (2) with an opening arrangement (1) and to the opening arrangement (1) proper. A hole (3) is punched out in the material (15) of a package (2) of the type which is produced from a material web (15) or a material sheet, the hole being covered by a thin strip (4). Thereafter, the package (2) is filled and formed into its final shape. A plastic device (6) is secured on the finished package (2) so that it surrounds the strip (4) without covering it. The plastic device (6) consists of a pouring element (7) with an angled front edge (10) and a sealing element (8) with a locking angle (13). A hole is provided in the pouring element (7) wherein the strip (4) is visible in its entirety. Before distribution of the package (2) the sealing element (8) is moved over the pouring element (7) so that these enter into engagement with one another and the locking angle (13) is locked against the front edge (10) of the pouring element (7).

Opening arrangement

A packing container is disclosed in which an end wall of the packing container has an opening formed therein for emptying the contents of the container. The opening in the end wall is covered by a cover strip which is detachably secured to the end wall. The cover strip and the end wall are formed of a plastic coated metallic material and the cover strip is secured to the end wall along a sealing joint that surrounds the opening. The cover strip is secured to the end wall by surface fusion.

Growing community of inventors

Lund, Sweden

Bengt Bjorck