Molding Process
3 Aufrufe
LLDPE film haze
Problembeschreibung
High transparency requirements cannot be met; the film appears hazy.
Ursachenanalyse
LLDPE crystallization and surface state affect transparency; surface melt fracture or uneven cooling aggravates haze.
Lösung
①Solve sharkskin/melt fracture; ②rapid cooling with air ring; ③select a high-transparency grade (metallocene); ④improve melt temperature uniformity.
Wichtigste Erkenntnis
Haze = surface + crystallization; mLLDPE is the upgrade path.
War das hilfreich?
0 Personen fanden dies hilfreich
Vielen Dank für Ihr Feedback!