| 摘要 |
The present invention relates to a method of automatically forming, filling, and closing reclosable packaging bags based on a film (1) of flexible material, e.g. a thermoplastic material, provided with added-on strips (110, 112) and in particular complementary male and female slideway closure strips, the method comprising the steps consisting in: providing a feed of flexible film (1); providing a feed of strips (110, 112); and fixing the strips (110, 112) on the film (1) by heat sealing; characterized by the fact that: the step of feeding strips consists in providing a tape (100) of flexible material carrying the complementary strips (110, 112); and the step of fixing consists in heat sealing the tape (100) onto the film (1) prior to feeding the resulting assembly (1, 100) to the tube-forming neck of an automatic machine for forming, filling, and closing packaging bags. The invention also relates to machines for implementing the method and to the resulting bags.
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