Common problems and solutions in the use of PVC heat shrink film

Do you know the common problems and solutions for the use of PVC heat shrink film? Nowadays, PVC thermal shrink film covers the packaging field of electronic products, pharmaceutical products and other industries, which can be said to be widely used. But in the production and use will inevitably encounter some problems affecting the effect of use, then, PVC thermal shrinkage film use of common problems and solutions?

Common problems and solutions in the use of PVC heat-shrinkable film:

Flatulence: The hot air is retained in the contraction film

Solutions:

1) Increase the number of air holes to speed up air leakage from the shrinkage film.

2) Slow down the conveyor belt speed of the packaging machine, so that the hot air has a longer time to leak out from the shrinkage film.

3) Increase the temperature of the packaging machine to facilitate air leakage from the PVC heat-shrinkable film.

Second, atomization: the surface of the shrinkage film becomes blurred, like mist

Solutions:

1) Reduce the temperature of the packaging machine, too high temperature is the cause of the shrinkage film atomization.

2) Increase the conveyor belt speed of the packaging machine to reduce the contact time of the shrink film with heat.

Fish-eye: Fish-eye wrinkles appear on the surface of PVC thermal shrinkage film.

Solutions:

1) If the temperature of the shrink packaging machine is too low, the temperature of the packaging machine can be increased.

2) The conveyor belt speed of shrink packaging machine is too fast, the conveyor belt speed can be reduced.

3) The cyclic wind force of shrink packaging machine is too low, the cyclic wind force can be reduced.

The above is about the PVC thermal shrinkage film use of common problems and solutions introduced to this, PVC thermal shrinkage film in the process of shrinkage packaging, often encounter some problems such as flatness, atomization of shrinkage film, fish eyes and other problems. These problems can be corrected by adjusting the machine Settings, the most commonly adjusted packaging machine temperature, circulating wind speed, conveyor belt speed, the number of air holes and the size of the shrinkage film.