The phenomenon of wrinkles in the package often occurs in shrink wrap.
Solution
1. Replace the qualified film.
2. The position of the film is neglected so that it does not deflect during the transfer. 3. Adjust the amount of glue applied and apply glue evenly.
4, adjust the process parameters, so that the adhesive can be fully dried, reducing the residual amount of solvent. 5, the composite film should be fully cooled before rewinding. 6. Adjust the composite pressure.
7 Adjust the unwinding and winding tension so that the tensions of the parts match each other. 8. Adjust the parallelism of each guide roller.
9. Clean the surface of each guide stick and replace the damaged guide stick to ensure that the surface of the guide roller is smooth, smooth and clean.
1. Replace the qualified film.
2. The position of the film is neglected so that it does not deflect during the transfer. 3. Adjust the amount of glue applied and apply glue evenly.
4, adjust the process parameters, so that the adhesive can be fully dried, reducing the residual amount of solvent. 5, the composite film should be fully cooled before rewinding. 6. Adjust the composite pressure.
7 Adjust the unwinding and winding tension so that the tensions of the parts match each other. 8. Adjust the parallelism of each guide roller.
9. Clean the surface of each guide stick and replace the damaged guide stick to ensure that the surface of the guide roller is smooth, smooth and clean.