Material Analysis
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LLDPE heavy-duty packaging bag
Fenómeno del problema
LLDPE heavy-duty packaging bags rupture on drop, seal strength is insufficient, transport losses are high
Análisis de la causa
LLDPE heavy-duty packaging film requires impact resistance and seal strength; mLLDPE or LLDPE/LDPE blend improves toughness; film thickness and sealing process are verified against drop standards
Solución
①Use mLLDPE or blended film for heavy-duty packaging; ②determine film thickness by drop test; ③sample-check seal strength batch by batch; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusión clave
The reliability of LLDPE heavy-duty packaging bags is verified by drop testing; material upgrade plus seal sampling provides double insurance; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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