What Causes Wrinkles and Poor Seals in Pillow Packaging?
Wrinkled film, uneven seals, and incorrect cutting positions are common problems during pillow packaging production.
Fortunately, most of these problems can be traced to several basic operating conditions.
Problem: Film Keeps Moving Sideways
Possible causes:
Incorrect film installation, uneven tension, guide roller position, or unstable film pulling.
What to check:
Reinstall the film roll and confirm that the film moves smoothly through the forming section.
Problem: The Seal Is Weak
Possible causes:
Sealing temperature is too low, sealing time is insufficient, or the sealing surface is contaminated.
What to check:
Inspect the sealing jaws and gradually adjust the sealing parameters according to the film material.
Problem: Packages Have Wrinkles
Possible causes:
Film tension may be too high or too low. The forming section may also be incorrectly adjusted for the film width.
What to check:
Check film tension, forming parts, and product position before increasing machine speed.
Problem: Cutting Position Changes
Possible causes:
Incorrect bag-length settings, unstable film feeding, or photoelectric tracking problems.
What to check:
Confirm the printed-film mark position and sensor settings.
A Better Troubleshooting Method
Do not change multiple machine parameters at the same time.
Adjust one variable at a time, observe several packaging cycles, and record the result.
This makes it much easier to identify the real cause of pillow packaging problems and establish stable production settings.