Extrusion & Post
8 views
Poor printing adhesion of EEA film
Problem Phenomenon
EEA film ink adhesion
Cause Analysis
Poor affinity between EEA surface polarity and ink; corona treatment effect decays fast; ink system not matching EEA
Solution
1) Print immediately after corona treatment, within 24h; 2) Use EEA-specific ink; 3) Increase corona power to 15-20kW/m² to ensure surface tension >42mN/m; 4) Flame treatment to assist surface polarization
Key Takeaway
Poor printing adhesion is caused by insufficient surface polarity; corona treatment and special ink are the key
Was this helpful?
0 people found this helpful
Thank you for your feedback!