Extrusion & Post
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TPU product release agent residue
Fenómeno del problema
Surface release agent residue affects subsequent coating and printing.
Análisis de la causa
Excessive use or uneven spraying of release agent; the TPU surface has strong adsorption of release agent; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solución
①control the release agent dosage; ②select paintable release agents; ③clean the surface before coating; ④prioritize process improvement for demolding; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Conclusión clave
Release agent is an auxiliary means rather than the main solution; excessive use brings secondary processing problems; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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