Processing Machinery
4 조회수
Color difference/unstable color of polystyrene ABS products
문제 현상
ABS product color is unstable, with color differences appearing between different batches or within the same batch, affecting product appearance consistency.
원인 분석
(1) Color masterbatch is poorly dispersed
(2) Processing temperature fluctuation causes different pigment dispersion
(3) Inconsistent regrind proportion
(4) Different raw material base colors
(5) Insufficient screw shear
해결 방법
(1) Use color masterbatch with good dispersibility
(2) Stabilize processing temperature within the 180-240°C range
(3) Unify the regrind proportion
(4) Use raw material from the same batch
(5) Use a mixing-type screw
핵심 요약
ABS color difference is caused by uneven pigment dispersion and process fluctuation.
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