The present invention relates to a liquid-tight container comprising a container wall which surrounds a container interior at least in part, wherein: a jacket element and a first end element are connected to one another and each form a portion of the container wall; wherein the jacket element delimits the container interior in a transverse direction extending from the inside to the outside in relation to the container interior, and comprises a rim portion having a first edge; wherein the first end element delimits the container interior at a first end of the liquid-tight container in a longitudinal direction extending along the length of the container, and comprises a further edge which points in the longitudinal direction; wherein the rim portion a. is located at the first end of the container, and b. encloses the further edge counter to the transverse direction from the outside to the inside in such a way that i. the first edge of the jacket element points counter to the longitudinal direction, and ii. the liquid-tight container comprises, at the first end in the transverse direction, a ply sequence comprising A. a first ply of the jacket element, B. a ply of the first end element, and C. a further ply of the jacket element; wherein the rim portion comprises, at least on a side pointing inwards counter to the transverse direction, a plurality of portions of a first type and a plurality of portions of a further type, which portions differ from one another in their thickness in the transverse direction.

The invention also relates to a precursor for producing the liquid-tight container, to a method for producing a liquid-tight container, to the use of a liquid-tight container, and to the use of an ultrasonic generator and/or an ultrasonic sonotrode.

The present invention relates to a liquid-tight container comprising a container wall which surrounds a container interior at least in part, wherein: a jacket element and a first end element are connected to one another and each form a portion of the container wall; wherein the jacket element delimits the container interior in a transverse direction extending from the inside to the outside in relation to the container interior, and comprises a rim portion having a first edge; wherein the first end element delimits the container interior at a first end of the liquid-tight container in a longitudinal direction extending along the length of the container, and comprises a further edge which points in the longitudinal direction; wherein the rim portion a. is located at the first end of the container, and b. encloses the further edge counter to the transverse direction from the outside to the inside in such a way that i. the first edge of the jacket element points counter to the longitudinal direction, and ii. the liquid-tight container comprises, at the first end in the transverse direction, a ply sequence comprising A. a first ply of the jacket element, B. a ply of the first end element, and C. a further ply of the jacket element; wherein the rim portion comprises, at least on a side pointing inwards counter to the transverse direction, a plurality of portions of a first type and a plurality of portions of a further type, which portions differ from one another in their thickness in the transverse direction.

The invention also relates to a precursor for producing the liquid-tight container, to a method for producing a liquid-tight container, to the use of a liquid-tight container, and to the use of an ultrasonic generator and/or an ultrasonic sonotrode.