Material Drying
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LDPE Pharmaceutical Bag
Fenómeno do problema
LDPE bags for pharmaceuticals have insufficient barrier properties
Análise das causas
LDPE has average moisture and oxygen barrier, and the shelf life of pharmaceuticals is affected; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solução
Use composite structures for high-requirement pharmaceuticals; perform barrier verification according to shelf life; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes, so as to locate the effective measure
Conclusão principal
Pharmaceutical bags are designed for barrier according to shelf life; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future
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