Extrusion & Post
7 visualizações
LLDPE stretch film casting
Fenómeno do problema
LLDPE stretch film cast production has uneven thickness and unstable pre-stretch performance
Análise das causas
The casting method produces LLDPE stretch film with uniform thickness and high transparency; three-layer coextrusion structure can balance puncture resistance and cling; casting lines suit high-ratio pre-stretch requirements
Solução
①Stretch film mainly uses casting method with three-layer coextrusion; ②design pre-stretch ratio according to machine-use requirements; ③closed loop of online thickness measurement and visual inspection; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusão principal
Casting three-layer coextrusion is the mainstream process for LLDPE stretch film; pre-stretch performance is the core indicator of machine-use film; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
Isto foi útil?
0 pessoas acharam isto útil
Obrigado pelo seu comentário!