Material Drying
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TPU Film Lamination
Problem Phenomenon
TPU waterproof moisture-permeable film delaminates after being laminated onto garments
Cause Analysis
Lamination process or adhesive does not match the fabric; 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
Solution
Lamination temperature and pressure calibrated; adhesive selection; peel strength 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
Key Takeaway
Waterproof film lamination relies on process and adhesive; 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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