| 摘要 |
The invention discloses a method for shaping automatic filling and closing means on packaging bags that can be closed again using a film (1) of flexible material, for instance thermoplastic, provided with mounted sections (110, 112), particularly sections with complementary male and female zip fastener, comprising the following steps: providing a supply of flexible film (1), providing a supply of sections (110, 112), and soldering the sections (110, 112) on the film (1). The invention is characterised in that: the supplying of sections consists in supplying a strip (100) of flexible material bearing the complementary sections (110, 112) and that the fixing consists in soldering the strip (100) on the film (1), before introducing this assembly (1, 100) on a tubular shaping neck of a machine shaping automatic filling and closing means on packaging bags. The invention also concerns machines for implementing this method and the bags obtained.
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