Contact our technicians if you come across some difficulties in your blister packaging production process.
We will be happy to share our troubleshooting database and suggest a solution.
Below are some common issues that some expert factory managers encountered and after approaching us together we successfully solved:
BLISTERS/BUBBLES ON FILM SURFACE | |
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Overly moist | Dry previous to thermoforming process Warm up before thermoforming process Heat both sides Keep material in moisture protective wrap until ready to use |
Excessive heating speed | Decrease heater's temperature Slower heating process Increase heater's and film distance |
Film is not heated equally in all areas | Not homogeneous film Check heaters intensity |
FILM RUPTURES PREVIOUS TO THERMOFORMING | |
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Excess tension during unwinding | Loosen tension, add slack in roll feed |
Cold film edges | Check side heaters (minimum 190°F) |
Sheet too cold | Preheat to minimum 150°F |
Worn pin heads | Check/replace pin heads |
WHITE MARKS | |
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Due to excessive stress on the film | Preheat film to 190°F minimum |
Overall film is hazy | Check film quality before and after being placed in rollers |
Random white scratch marks | Check if film is scratched before production or if there is an edge on rollers |
POOR DETAIL AFTER THERMOFORMING | |
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Film temperature is too low | Increase heaters temperature Heat clamping frame previously |
Inefficient drawing | Check for vacuum leaks use caution to prevent part read ) Increase vacuum surge tank size |
Tooling under performing | Add plug assist to properly stretch film |
Thickness of film | Change to thinner film |
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