Injection Molding
3 views
CEF and color masterbatch mixing color uneven
Problem Phenomenon
The CEF/color masterbatch injection molded part shows color streaks and areas with uneven color depth
Cause Analysis
The carrier resin of the color masterbatch is incompatible with CEF; the color masterbatch is poorly dispersed and the pigment agglomerates; the melt flow is unstable during the '2079851475616104452 process, causing pigment orientation
Solution
1) Select CEF or similar carrier color masterbatch to ensure compatibility; 2) Pre-disperse by twin-screw extrusion granulation; 3) Appropriately extend the mixing time to ensure pigment dispersion; 4) Reduce the injection speed to reduce pigment orientation
Key Takeaway
Carrier matching of the color masterbatch and sufficient dispersion are the key to color uniformity
Was this helpful?
0 people found this helpful
Thank you for your feedback!