A method for producing a container which is at least partially constructed from a thermoplastic material, comprising at least one first compartment element and at least one second compartment element which is thermoplastically welded to the first in a joining region, the method comprising the following method steps: a) providing of at least one first and one second compartment element (1, 2), each having a plate element with at least one joining zone of a thermoplastic material, comprising the outer edges of the compartment element, at least the second compartment element comprising a side wall arranged around the outer circumference of the plate element and each having a distal first and a proximal second outer edge (6, 5), b) joining together of the at least two compartment elements (1, 2) such that the joining zones of thermoplastic material contact each other and one outer edge of the first compartment element fully abuts the first outer edge of the second compartment element and a full butt joint is formed between the two compartment elements (1, 2), c) welding of the at least two compartment elements (1, 2) by means of at least one temperature-regulated nozzle, wherein the at least one nozzle is guided around the circumference of the butt joint while in contact to the butt joint, or the butt joint is guided along the at least one nozzle while in contact to the at least one nozzle, wherein the respective first and second outer edges (6, 5) of the compartment elements are plasticized and simultaneously plasticized welding filler is transferred to the butt joint so that a weld seam is formed between the two compartment elements (1, 2), and d) obtaining a plastic container, wherein the at least two compartment elements (1, 2) are welded together. a) providing of at least one first and one second compartment element (1, 2), each having a plate element with at least one joining zone of a thermoplastic material, comprising the outer edges of the compartment element, at least the second compartment element comprising a side wall arranged around the outer circumference of the plate element and each having a distal first and a proximal second outer edge (6, 5), b) joining together of the at least two compartment elements (1, 2) such that the joining zones of thermoplastic material contact each other and one outer edge of the first compartment element fully abuts the first outer edge of the second compartment element and a full butt joint is formed between the two compartment elements (1, 2), c) welding of the at least two compartment elements (1, 2) by means of at least one temperature-regulated nozzle, wherein the at least one nozzle is guided around the circumference of the butt joint while in contact to the butt joint, or the butt joint is guided along the at least one nozzle while in contact to the at least one nozzle, wherein the respective first and second outer edges (6, 5) of the compartment elements are plasticized and simultaneously plasticized welding filler is transferred to the butt joint so that a weld seam is formed between the two compartment elements (1, 2), and d) obtaining a plastic container, wherein the at least two compartment elements (1, 2) are welded together.