Extrusion & Post
2 Aufrufe
LLDPE Stretch Film Insufficient Self-Adhesion
Problembeschreibung
Layers of stretch wrap film do not stick, and pallet wrapping is loose.
Ursachenanalyse
LLDPE stretch film relies on special tack (the grade itself or the tackifier PIB); insufficient tackifier or the wrong grade results in no stickiness.
Lösung
① Select special stretch film grades; ② evaluate PIB tackifier addition; ③ control film thickness and storage aging; ④ perform tack verification in low-temperature environments.
Wichtigste Erkenntnis
Stretch film tack = grade + tackifying system.
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