The invention relates to a method for manufacturing a container comprising a substantially rigid outer container and a deformable inner bag, wherein the outer container and the inner bag are made of a first thermoplastic material and a second thermoplastic material. The preform is positioned between the open mold halves of a blow mold. When the preform reaches the required length for container fabrication, the blow mold is closed, and excess material in the bottom region of the to-be-manufactured container is squeezed out. The excess material is re-fed to a first screw conveyor, which mixes the excess material with the first thermoplastic material and conveys the mixture to an extruder nozzle. The first thermoplastic material has a lower viscosity in the molten state than the excess material, so that the outer layer of the extruded tube is composed solely of the first thermoplastic material.

Area Code: DE

Application Number: CN202111299065.7