| 摘要 |
The invention relates to a method for producing packaging bags (1, 1') having a triangular outline, made of a film strip having two longitudinal edges (3, 4) located opposite of each other. The film strip (2) is wound about a shaping mandrel forming a film spiral (5). The film spiral (5) is pulled off the shaping mandrel so far that a first seam section (7) formed by the longitudinal edges (3, 4) and extending in the circumferential direction about 180° around the film spiral (5) and a first film section opposite of the first seam section (7) are exposed and sealed there. The film spiral (5) is further pulled off the shaping mandrel so far that a second seam section (10) abutting the first seam section (7) and a second film section (11) located opposite of the second seam section (10) are exposed and also sealed.
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