Domestic use, production of masterbatch more than 20 years of history, nearly 200 manufacturers, but the production units due to the different equipment and technology level, large differences in the quality of production, so we excerpt a typical factory enterprise standards for reference.
(1) masterbatch size Φ4 × 5mm cylinder.
(2) concentrated masterbatch pigment dispersion should plastics uniform, smooth surface, bright color, does not allow even tablets.
(3) The fineness of the concentrated masterbatch pigment should be 5-20μm.
(4) of concentrated masterbatch pigment content of not less than 20 times the standard swatches.
(5) of concentrated masterbatch pigment dispersion, requiring in blown film, color point allowances of ≤5 a 0.6mm / m.
(6) of concentrated masterbatch melt index of not less than 2g / 10min.
