The flexible packaging bag-making process is divided into two types: back-seal bag-making and side-seal bag-making. The back-seal bag-making method is a split type, and the bag is formed by pressing the palms together and then cutting the bag to complete the bag-making.
During production, after the bag-making material is discharged by the unwinding device, it enters the forming stage, which is mainly completed by the photoelectric control system, the forming plate, and the adjusting device. The bag-making material enters the heat-sealing stage, and the longitudinal and transverse heat-sealing devices complete the heat-sealing of the bag, and the part that has just been heat-sealed is cooled and shaped, and then the photoelectric control system controls the delivery position of the heat-sealed material. The cutter device cuts the continuous bag material sent out into individual bags.
Common bag shapes are:
1. Middle-sealed bag
2. Middle-sealed organ bag
3. Trapezoidal middle-sealed organ bag
4. Side sealing organ bag
5. Four-side sealing organ bag
6. Three-side sealing bag
7. Self-supporting bag
8. Three-side sealing zipper bag
9. Self-supporting zipper bag
10. Penguin bag
10. Penguin bag
11. Tear mouth bag
12. Bag in box
Good knowledge
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