Processing Machinery
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LDPE Heavy-Duty Packaging Bag
Fenómeno do problema
Heavy-duty packaging bags rupture on drop, have insufficient seal strength, and cause high transportation losses
Análise das causas
Heavy-duty packaging film requires impact resistance and seal strength; blending LDPE with LLDPE improves toughness; film thickness and sealing process are verified according to drop standards; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solução
① Use LDPE/LLDPE blended film for heavy-duty packaging; ② determine film thickness according to drop testing; ③ sample check seal strength batch by batch; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
The reliability of heavy-duty packaging bags is verified by drop testing; blending for toughening plus seal sampling checks is double insurance; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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