Molding Process
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Color migration of PLA colored products
Fenómeno del problema
The color of PLA colored products contaminates the contact objects.
Análisis de la causa
The migration resistance of the dyes used is poor, and the degradation products of PLA itself carry color.
Solución
Select migration-resistant pigments (pigments approved for food contact); control the processing and storage temperature.
Conclusión clave
PLA color migration is a key concern for food packaging.
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