A portion capsule for producing a beverage is proposed, having a capsule body with a capsule base and a filling side, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the filling side, with a filter element being arranged between the bev
A portion capsule for producing a beverage is proposed, having a capsule body with a capsule base and a filling side, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the filling side, with a filter element being arranged between the beverage base and the capsule base, and with the filter element having a non-woven which is arranged in the region of the capsule base.
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1. A portion capsule for producing a beverage, having a capsule body with a capsule base and a cover, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the cover, and with a filter element being arranged between the beverage base and the
1. A portion capsule for producing a beverage, having a capsule body with a capsule base and a cover, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the cover, and with a filter element being arranged between the beverage base and the capsule base, wherein the filter element comprises a non-woven which is arranged on an inner side of the capsule base, the non-woven comprising a felt structure such that no crema is formed on the beverage, and the felt structure comprising a plastic fiber material. 2. The portion capsule as claimed in claim 1, wherein the plastic fiber material comprises fine polyester fibers, wherein the non-woven has a mass per unit area of between 40 and 100 grams per square meter, wherein the non-woven has a thickness of between 0.20 and 0.8 millimeters, and wherein the non-woven has an air permeability of between 1000 and 3000 l/(m2s) at a pressure of 100 pascal. 3. The portion capsule as claimed in claim 1, wherein the felt structure is provided on or in a support structure. 4. A portion capsule for producing a beverage, having a capsule body with a capsule base and a cover, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the cover, and with a filter element being arranged between the beverage base and the capsule base, wherein the filter element comprises a non-woven which is arranged on an inner side of the capsule base, the non-woven comprising a felt structure, the felt structure comprising a plastic fiber material, the felt structure is provided on or in a support structure, and wherein the filter element has two felt structures which are separated from one another by the support structure. 5. A portion capsule for producing a beverage, having a capsule body with a capsule base and a cover, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the cover, and with a filter element being arranged between the beverage base and the capsule base, wherein the filter element comprises a non-woven which is arranged on an inner side of the capsule base, the non-woven comprising a felt structure, the felt structure comprising a plastic fiber material, and wherein the filter element is elastic and at least an edge of the filter element is arranged on the inner side of the capsule base. 6. The portion capsule as claimed in claim 1, wherein the filter element is ultrasonically sealed and stretched at the capsule base. 7. The portion capsule as claimed in claim 1, wherein the inner side of the capsule base faces the cover. 8. A portion capsule for producing a beverage, having a capsule body with a capsule base and a cover, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the cover, and with a filter element being arranged between the beverage base and the capsule base, wherein the filter element comprises a non-woven which is arranged on an inner side of the capsule base, the non-woven comprising a felt structure, the felt structure comprising a plastic fiber material, and wherein the diameter of the filter element is greater than the diameter of the capsule base. 9. A portion capsule for producing a beverage, having a capsule body with a capsule base and a cover, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the cover, and with a filter element being arranged between the beverage base and the capsule base, wherein the filter element comprises a non-woven which is arranged on an inner side of the capsule base, the non-woven comprising a felt structure, the felt structure comprising a plastic fiber material, and wherein the filter element has an edge which projects substantially in the direction of the cover and/or is bent in the direction of the cover. 10. The portion capsule as claimed in claim 9, wherein the edge extends at least partially along a side wall of the capsule body, with the side wall extending between the cover and the capsule base. 11. The portion capsule as claimed in claim 1, wherein the filter element completely or only partially covers the capsule base. 12. The portion capsule as claimed in claim 1, wherein the filter element is attached to the capsule base in a cohesive manner. 13. The portion capsule as claimed in claim 1, wherein the filter element is attached to the capsule base at an edge of the capsule base adjacent a side wall of the capsule body, and/or wherein the filter element is attached to the side wall of the capsule body. 14. A portion capsule for producing a beverage, having a capsule body with a capsule base and a cover, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the cover, and with a filter element being arranged between the beverage base and the capsule base, wherein the filter element comprises a non-woven which is arranged on an inner side of the capsule base, the non-woven comprising a felt structure, the felt structure comprising a plastic fiber material, and wherein the capsule base has a protrusion in a direction opposing the cover. 15. The portion capsule as claimed in claim 1, wherein the capsule base is formed in such a way that, when the capsule base is perforated by an external perforation means, the filter element remains unperforated. 16. A portion capsule for producing a beverage, having a capsule body with a capsule base and a cover, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the cover, and with a filter element being arranged between the beverage base and the capsule base, wherein the filter element comprises a non-woven which is arranged on an inner side of the capsule base, the non-woven comprising a felt structure, the felt structure comprising a plastic fiber material, and wherein the filter element is formed in such a way that, when the capsule base is perforated by an external perforation means, the filter element is at least partially lifted off from the capsule base. 17. The portion capsule as claimed in claim 16, wherein the filter element lifts off from the capsule base only in a central region of the capsule base and continues to rest on the capsule base or remains attached to the capsule base at an edge of the capsule base. 18. The portion capsule as claimed in claim 10, wherein the filter element is formed in such a way that, when the capsule base is perforated by an external perforation means, the filter element lifts off from the capsule base in a central region of said filter element and the edge of the filter element moves at least partially in the direction of the capsule base. 19. The portion capsule as claimed in claim 1, wherein the filter element has a material reservoir. 20. A portion capsule for producing a beverage, having a capsule body with a capsule base and a cover, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the cover, and with a filter element being arranged between the beverage base and the capsule base, wherein the filter element comprises a non-woven which is arranged on an inner side of the capsule base, the non-woven comprising a felt structure, the felt structure comprising a plastic fiber material, the filter element has a material reservoir, and wherein the filter element has a corrugated or folded region which functions as the material reservoir. 21. A portion capsule for producing a beverage, having a capsule body with a capsule base and a cover, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the cover, and with a filter element being arranged between the beverage base and the capsule base, wherein the filter element comprises a non-woven which is arranged on an inner side of the capsule base, the non-woven comprising a felt structure, the felt structure comprising a plastic fiber material, the filter element has a material reservoir, and wherein the filter element is formed in such a way that, when the capsule base is perforated by an external perforation means, the filter element lifts off from the capsule base in a central region of said filter element and material of the filter element from the material reservoir moves in a direction of the central region. 22. The portion capsule as claimed in claim 1, wherein the filter element is formed and attached to the capsule base in such a way that, when the capsule base is perforated by an external perforation means, the filter element is tapped and/or pierced. 23. A portion capsule for producing a beverage, having a capsule body with a capsule base and a cover, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the cover, and with a filter element being arranged between the beverage base and the capsule base, wherein the filter element comprises a non-woven which is arranged on an inner side of the capsule base, the non-woven comprising a felt structure, the felt structure comprising a plastic fiber material, and wherein the capsule base has a predetermined breaking point which is intended to tear open as a result of mechanical contact with an external perforation means. 24. The portion capsule as claimed in claim 23, wherein the predetermined breaking point has a plurality of lines of weakness which are arranged in a star shape around a central point of the capsule base, wherein the capsule base has a reduced material thickness and/or is perforated along the lines of weakness. 25. A portion capsule for producing a beverage, having a capsule body with a capsule base and a cover, with a cavity for accommodating a pulverulent or liquid beverage base being formed between the capsule base and the cover, and with a filter element being arranged between the beverage base and the capsule base, wherein the filter element comprises a non-woven which is arranged on an inner side of the capsule base, the non-woven comprising a felt structure, the felt structure comprising a plastic fiber material, and wherein the capsule base has an outlet opening which is sealed off by a film or foil, with the film or foil having a pull-off tab for pulling off the film or foil by hand. 26. A method for producing a portion capsule, wherein a filter element is cut out of a strip of non woven comprising a felt structure made from plastic fiber material by a blade and inserted into the capsule by the blade and there fitted and sealed to a base of the capsule and then a powder or a tea is filled onto the filter element and the capsule is then sealed off by a cover film or foil. 27. The portion capsule as claimed in claim 1 wherein the felt structure comprises a needle felt structure.
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이 특허에 인용된 특허 (9)
Malmquist Neil A. (14 Kinsman La. Topsfield MA 01983), Automatic low volume beverage brewing system.
van der Lijn Joost (Utrecht NLX) Van Thoor Bernardus M. (Maarsenbroek NLX), Disposable filter cartridge, whether or not combined with a water reservoir.
van der Lijn Joost (Utrecht NLX) van Thoor Bernardus M. (Maarssenbroek NLX), Disposable filter cartridge, whether or not combined with a water reservoir.
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