Portion capsule and method for producing the same

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.