Molding Process
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Insufficient heat seal strength of PLA film
Fenómeno del problema
The seal strength of PLA film after heat sealing is low.
Análisis de la causa
The PLA heat sealing temperature window is narrow (between the start of melting and degradation) and the parameters are improper; the strength of the film itself is limited.
Solución
Precisely control the heat sealing temperature, time, and pressure; use a heat seal enhancing formulation.
Conclusión clave
The PLA heat sealing process window is narrow and needs precise control.
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