Processing Machinery
2 views
Color difference/unstable color of high impact polystyrene ABS products
Problem Phenomenon
ABS product color is unstable, color difference appears between different batches or within the same batch, affecting product appearance consistency.
Cause Analysis
(1) Poor dispersion of color masterbatch particles
(2) Processing temperature fluctuation causes different pigment dispersion
(3) Inconsistent regrind ratio
(4) Different raw material base colors
(5) Insufficient screw shear
Solution
(1) Use color masterbatch particles with good dispersibility
(2) Stabilize processing temperature within the 180-240°C range
(3) Unify regrind ratio
(4) Use raw material from the same batch
(5) Use a mixing-type screw
Key Takeaway
ABS color difference is caused by uneven pigment dispersion and process fluctuation.
Was this helpful?
0 people found this helpful
Thank you for your feedback!