Material Analysis
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PA6 Food Contact Compliance
Fenómeno do problema
Food-grade PA6 products fail the migration test, with prominent risks in high-temperature contact scenarios
Análise das causas
Caprolactam monomers and oligomers in PA6 may migrate into food, and the migration amount increases during high-temperature oil contact; misuse of non-food-grade grades leads to compliance failure
Solução
①Select food-grade grades with controlled caprolactam residue; ②conduct migration verification according to use temperature and contact medium; ③obtain the supplier's food contact compliance declaration; after adjustment, continuously sample to verify the effect, and resume mass production after confirming stability
Conclusão principal
Food contact is PA6's compliance red line; grade residue control and migration testing are dually verified, and the supplier declaration is archived for reference; after confirming effectiveness, fix the parameters and practices into the work instructions to prevent recurrence
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