Processing Machinery
6 görüntüleme
TPU Film Yellowing
Sorun Belirtisi
Transparent TPU film yellows after outdoor use
Neden Analizi
Aromatic TPU yellows under light exposure; when troubleshooting on site, 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 literature and should be confirmed first during troubleshooting
Çözüm
Choose aliphatic grades for outdoor transparent film; yellowing test verification; 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
Temel Çıkarım
Outdoor transparent film must be aliphatic; after confirming effectiveness, solidify 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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