Processing Machinery
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LLDPE film downgauging for cost reduction
Problem Phenomenon
Hope to reduce thickness to cut cost but worry about insufficient strength.
Cause Analysis
LLDPE's high strength allows film downgauging; but after downgauging the processing window narrows, and the difficulty of film breakage and thickness control rises.; During on-site troubleshooting, verify item by item according to this mechanism, avoiding blindly adjusting the machine based only on experience.
Solution
①Use LLDPE's high strength to implement downgauging; ②combine with PPA to improve processing; ③strengthen thickness measurement and bubble stabilization; ④stepwise downgauging verification.; After adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability.
Key Takeaway
Downgauging is LLDPE's main value point; only with process assurance in place can cost be reduced without reducing quality.; After confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence.
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