| 摘要 |
The production of a tubular container is effected by rolling and lap-welding a multi-ply foil to form a cylindrical tube body (1), the arrangement of a collar (5) which partially closes this tube body (1) at the top, and the production of a head piece (4) of plastics material, which on the one hand connects the tube body (1) to the collar (5) and on the other hand forms the top closure of the tube. The collar (5) has a simple basic form before working and is brought by the working into a form in which its cut edges can be covered by plastics material flowing thereover, this shaping requiring no additional working operation, but being effected by the forces set up during the moulding process of the plastics material. Further by the shaping of the collar (5), the spacing between the collar and the tube body is reduced, thereby further improving protection against diffusion. |
