LLDPE film corona adhesion problem

Problem Phenomenon

Poor print adhesion.

Cause Analysis

Slip agent blooming + low surface energy; insufficient corona or fast decay.

Solution

①Increase corona power; ②print promptly; ③low-blooming slip system; ④dyne value testing.

Key Takeaway

Adhesion = dyne value management.

LLDPE; film; corona; dyne value; slip agent

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