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PP EVOH sheet film

2024-12-23 16:20
PP (polypropylene), EVOH (ethylene vinyl alcohol copolymer), and the combination of these materials (PP/EVOH/PP) offer several advantages in packaging, particularly when compared to using PP alone. Here's how the multilayer structure of PP/EVOH/PP improves packaging performance:
 

1. Processability:
Maintains Processability: Even with the addition of EVOH, the multilayer structure can be processed by conventional techniques of extrusion or thermoforming, thus remaining compatible with existing manufacturing equipment and processes.
2. Cost-Effectiveness:
Material Usage Optimized: Putting the layer of EVOH only where it helps the most, usually right in the middle, serves to economize on costly EVOH and helps in using less expensive resins when packaging, making this a relatively cost-effective alternative without ever compromising performance.
 
3. Environmental Considerations:
Sustainability: EVOH as a barrier layer can reduce further protective measures, which means that the overall material use and waste could be less. Besides, some EVOH grades are designed to be recyclable and contribute to more sustainable packaging solutions.
 
PP EVOH PPPP sheet film


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