Molding Process
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LDPE Film Die Lines
Problem Phenomenon
Continuous longitudinal fine lines on the film surface.
Cause Analysis
Die lip damage, carbonized buildup or foreign matter stuck in the die lip gap.
Solution
①Clean die lips; ②polish and repair damage; ③check screen interception efficiency; ④regularly maintain the die head.
Key Takeaway
Longitudinal die lines = die lip condition problem.
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