Process for the production of a container for the preparation of a beverage in a beverage preparation device, sealing station for carrying out a sealing step of said process, and a container obtained by said process
AssigneeSociete des Produits Nestle S.A.
InventorsKARIM MISSOUM, NICOLA GALAFFU, GERHARD NIEDERREITER
Life of this patent
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Abstract
The present invention concerns a process for producing a container for the preparation of a beverage in a beverage preparation device, wherein, in the final container obtained, at least 70% of the surface of a compacted beverage ingredient body (2) contained therein, is in contact with the container walls (3, 4).
Claims8
A process for producing a container for the preparation of a beverage in a beverage preparation device, comprising the steps of:
- a. providing an injection wall of said container comprising a paper layer, said injection wall comprising:
- a peripheral sealing edge, and an inner portion capable of being punctured by an injection member of the beverage preparation device for circulating water under pressure inside said container;
- b. providing a beverage delivery wall of said container comprising a paper layer, said delivery wall comprising:
- a peripheral sealing edge, and an inner portion capable of being opened by an opening member of the beverage preparation device when the pressure inside said container presses said inner portion against said opening member, to let the beverage flow out, wherein at least one, preferably both, of said inner portions of said injection and delivery walls has a cup shape;
- c. placing a compacted body of beverage ingredient in the cup-shaped inner portion of the injection or delivery wall;
- d. placing the injection and delivery walls one above the other such that the sealing edges of said injection and delivery walls are superimposed, in order to form a preliminary container chamber containing said ingredient body and comprising a preliminary headspace not filled by said compacted ingredient body;
- e. providing a sealing station comprising:
- first and second housing elements forming a sealing chamber for housing the inner portions of said injection and delivery walls, wherein said first and second housing elements are configured for being moved towards each other for sealing said edges, and such that the surfaces of said sealing chamber are in contact with external surfaces of said inner portions of the injection and delivery walls,
- the process further comprises the steps of:
- f. pressing said housing elements against said inner portions of the injection and delivery walls such as to form a final container chamber having a headspace reduced at least by 10%, with respect to said preliminary headspace, and such that in the final container thus obtained, at least 70% of the surface of the compacted beverage ingredient body is in contact with said injection and delivery walls;
- and
- g. sealing together the edges of the injection and delivery walls, while the inner portions of said injection and delivery walls are still pressed.
A sealing station for carrying out the sealing step of a process for producing a container for the preparation of a beverage in a beverage preparation device, wherein the container comprises:
- an injection wall comprising a paper layer, said injection wall comprising:
- a peripheral sealing edge, and an inner portion capable of being punctured by an injection member of the beverage preparation device for circulating water under pressure inside said container;
- a beverage delivery wall comprising a paper layer, said delivery wall comprising:
- a peripheral sealing edge, and an inner portion capable of being opened by an opening member of the beverage preparation device when the pressure inside said container presses said inner portion against said opening member, to let the beverage flow out, wherein at least one, preferably both, of said inner portions of said injection and delivery walls has a cup shape;
- a compacted body of beverage ingredient housed in a container chamber formed by placing the injection and delivery walls one above the other such that the sealing edges of said injection and delivery walls are superimposed, wherein said container chamber before sealing said sealing edges together comprises a preliminary headspace not filled by said compacted ingredient body;
- said sealing station comprising:
- first and second housing element forming a sealing chamber for housing the inner portion of said injection and delivery walls wherein said first and second housing elements are configured for being moved towards each other for sealing said edges, and such that the surfaces of this sealing chamber press the external surfaces of the inner portions of the injection and delivery walls,
- wherein at least one of the inner surfaces of the first and/or second housing elements comprise a portion projecting towards the inside of the sealing chamber delimited by the housing elements and increasing the pressure exerted by the surfaces of said first and second housing elements on the external surfaces of the inner portions of the injection and delivery walls, such as to form a final container chamber having a headspace reduced at least by 10%, with respect to said preliminary headspace, and such that in the final container thus obtained, at least 70% of the surface of the compacted beverage ingredient body is in contact with said injection and delivery walls.
8-11. (canceled)
Dependencies are inferred from the claim text.