Production & Quality
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EVA internal inclusions
Problem Phenomenon
Inclusions of 0.1-0.5mm inside EVA products affect appearance
Cause Analysis
Impurity particles in raw material; dust pollution in the production environment; foreign matter mixed into recycled material
Solution
1) Filter raw material with 120-mesh screen to remove impurities; 2) Clean production environment to control dust; 3) Strictly sort recycled material to remove foreign matter
Key Takeaway
Inclusions are caused by raw material and environmental pollution; filtration and environmental control are key
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