| 摘要 |
<p>Packaging containers manufactured through fold forming, vacuum forming, injection moulding or other processing to shape a plastically deformable, flexible material, comprising a tubular container body with two or more longitudinal edges (14) which delimit between them in pairs a mainly flat container wall (11). In order to prevent deformation and/or cracking of the container with normal handling the said side walls (11), or at least one of the said side walls (11), are provided with reinforcing or stiffening elements formed through plastic deformation of the wall material in the region of the respective delimiting edges (14), which greatly strengthen and stiffen the container and enable it to be conveniently gripped with the hand without the risk of the edges and/or the adjacent side walls (11, 12) being cracked or deformed. <IMAGE></p> |
