Production & Quality
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PVA internal inclusions
Fenómeno del problema
PVA product interior has 0.1-0.5mm inclusions affecting appearance
Análisis de la causa
Impurity particles in the raw material; production environment dust contamination; foreign matter mixed into recycled material
Solución
1) Filter raw material with a 120 mesh screen to remove impurities; 2) Clean production environment to control dust; 3) Strictly sort recycled material to remove foreign matter
Conclusión clave
Inclusions are caused by raw material and environmental contamination; filtration and environmental control are the key
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