Pressure-resistant container

A method for producing a can, comprising:

• making, in a first step, can shells with a continuous winding machine in which at least a first layer, a second layer, and a third layer are applied one after another as individual layers over a winding mandrel and are continuously connected to each other while each layer is advanced in a longitudinal direction on the winding mandrel, the first layer being the innermost layer, the making step comprising:
• straight-winding the first layer over the winding mandrel such that two edges of the first layer overlap and form a folded seam extending in the longitudinal direction,
• wherein the first layer comprises a barrier layer comprising a laminate made of one of:
• an inner diffusion-tight film, and
• an inner diffusion-tight barrier laminate and an outer kraft paper layer,
• straight-winding the second layer which comprises paper or cardboard material around the barrier layer, wherein the adjoining cardboard or paper surfaces of the barrier layer and the second layer made of paper or cardboard material are adhered to each other,
• straight-winding at least the third layer which comprises paper or cardboard material around the second layer, and
• cutting a resulting tube into individual cylindrical hollow bodies open on both sides,
• bending, in a second step, the two open ends of the cylindrical hollow body outwards so that the ends have a circular cross-section with a larger diameter than the remaining cylindrical hollow body,
• closing, in a third step, the lower end of the cylindrical hollow body by a crimping device with a bottom element,
• filling, in a fourth step, the closed hollow body with the medium using a filling device, and
• further closing, in a fifth step, the hollow body, which is closed at the bottom, by a crimping device at the top with a cover element,
• wherein the fourth and the fifth steps are carried out at a filling plant which is suitable for filling and closing known aluminium cans.