PVC heat shrinkable film often encounters some small problems in the process of shrinkable packaging. Have you also encountered these problems?

So what should we pay attention to when using PVC heat shrinkable film?

Common problems of PVC heat shrinkable film I

• protrusion: the shrink film forms a prominent triangle at the corner of the package

Solution:

1. The shrink bag for wrapping the package is too large. You can reduce the size of the shrink bag

2. The speed of the conveyor belt of the shrink packaging machine is too fast, so the speed of the conveyor belt can be adjusted down

3. The circulating wind force of shrink packaging machine is too low, so you can reduce the circulating wind force

4. The temperature of shrink packaging machine is too low. You can increase the temperature of packaging machine

Common problems of PVC heat shrinkable film II

• zipper like holes: there are zipper like intermittent holes on the surface of the shrink film

Solution:

31. The air hole device tears the shrink film and checks the air hole device of the sealing machine

32. If the number of air holes is not enough, the number of air holes can be increased

Three common problems of PVC heat shrinkable film

• the sealing and cutting position is filamentous: there are filaments at the sealing and cutting position

Solution:

33. The temperature of the heat sealing knife of the sealing machine is too low. You can increase the temperature of the heat sealing knife

34. The sealing and cutting time is too short. You can increase the sealing and cutting time