Extrusion & Post
1 views
LDPE Printing Adhesion
Problem Phenomenon
LDPE film printing ink adhesion is poor
Cause Analysis
Surface energy is low and slip agent may have exuded; when troubleshooting on site, verify item by item according to this mechanism, and 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
Solution
Corona treatment in place; select PE-special ink; check slip agent exudation; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability; change only one variable at a time and record parameter changes, so as to locate the effective measure
Key Takeaway
Printing adhesion relies on corona and ink matching; 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
Was this helpful?
0 people found this helpful
Thank you for your feedback!