Material Drying
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Fogging on the surface of PET parts after packaging
Fenómeno do problema
After transparent PET packaging products are sealed and packaged, the inner surface fogs up and transparency decreases.
Análise das causas
Moisture in the environment condenses on the PET surface (large temperature difference inside and outside the packaging produces condensation); the PET surface is hydrophilic.
Solução
Fully cool to room temperature before packaging; use anti-fog additives to treat the surface; control the temperature and humidity of the packaging environment.
Conclusão principal
PET surface fogging affects display effect and needs anti-fog treatment.
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