Processing Machinery
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TPU Color Specks
Fenómeno do problema
Poor dispersion of color specks in TPU products
Análise das causas
Poor compatibility or dispersion between color masterbatch and TPU; when troubleshooting on site, verify item by item according to this mechanism, avoiding blind machine adjustment based solely on experience; this mechanism has been repeatedly verified by industry materials and should be confirmed first during troubleshooting
Solução
Select TPU-specific color masterbatch; mix materials uniformly; appropriate back pressure; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusão principal
Color specks rely on special masterbatch and dispersion; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a reference for troubleshooting similar problems later
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