Injection Molding
2 visualizaciones
Uneven color when PVA is mixed with color masterbatch
Fenómeno del problema
PVA/color masterbatch injection molded products show color streaks and areas of uneven color depth
Análisis de la causa
Color masterbatch carrier resin incompatible with PVA; poor color masterbatch dispersion with pigment agglomeration; unstable melt flow during '2079851475616104452 causes pigment orientation
Solución
1) Select PVA or same-type carrier color masterbatch to ensure compatibility; 2) Pre-disperse by twin-screw extrusion granulation; 3) Appropriately extend mixing time to ensure pigment dispersion; 4) Reduce injection speed to reduce pigment orientation
Conclusión clave
Color masterbatch carrier matching and full dispersion are the key to color uniformity
¿Le ha resultado útil?
0 personas encontraron esto útil
¡Gracias por sus comentarios!