Processing Machinery
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PVC Artificial Leather
Fenómeno do problema
PVC artificial leather surface became sticky after several years of use
Análise das causas
Plasticizer migrated to the surface, making it sticky to the touch and prone to dust; during on-site troubleshooting, verify item by item according to this mechanism to avoid blindly adjusting the machine based only on experience; this mechanism has been repeatedly verified by industry data and should be confirmed first during troubleshooting
Solução
Select a low-migration plasticizer system; isolate with a surface treatment layer; manage the use environment; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability; change only one variable at a time and record parameter changes to facilitate locating effective measures
Conclusão principal
Stickiness of artificial leather is plasticizer migration, and formulation is the root; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence; include this case in the defect archive as a troubleshooting reference for similar problems in the future
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