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 | |
|---|---|
| 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 | |
|---|---|
| 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 | |
|---|---|
| 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 | |
|---|---|
| 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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