| 摘要 |
A method for producing a self-supporting and dimensionally stable plastic container (1), in particular in bottle form, comprising the following steps: forming of a bag (2) from a plastic film with a film thickness of 0.3 - 1.2 mm, wherein the bag (2) is formed by welding of the plastic film with the formation of welded seams which have a welded-seam width between 0.6 and 10.0 mm, and the bag (2) comprises a base (3) and a bag opening (4) which lies opposite the base (3), wherein, in the erected state, the bag opening (4) is smaller than/equal to the base region (3) which lies opposite, introduction of a holding ring (5) into the opening (4) of the bag (2), wherein the holding ring (5) has a diameter (D1) which is greater than the minimum core diameter (D) of the holding ring (5), and production of a material-to-material connection between the holding ring (5) and the bag opening (4), tempering of the bag (2) in a temperature range between 50°C and 85°C in such a way that deformation of the bag (2) is made possible substantially outside the elastic range, inflation of the bag (2) in an open blowing mould (6) at 0.5 - 2 bar for 0.5 - 5 seconds, and in-mould blowing in the closed blowing mould (6) at 1 - 7 bar. Also disclosed are a self-supporting and dimensionally stable plastic container (1) and a bag (2) for use in said method. |
