The Study of Ink Pigment Dispersion Parameters

sunny · 发表于 2009-1-2 20:38:55

ABSTRACT
The purpose of this study was to investigate the influence of rotation speed and milling time on
the pigment dispersion quality. The information can be used to obtain a standard laboratory condition at
which a wide range of pigments may be dispersed to formulate water-based rotogravure inks. The
influence of pigment concentration and shear forces on the pigment dispersion were also studied.
The procedure consisted of dispersing the pigment using a laboratory Dispermat® SL bead mill at
various milling times with two different rotation speeds and measuring the particle size and particle size
distribution of the milled samples. The pigment was then dispersed at standard laboratory condition with
different pigment concentrations.