Dispersion and the Critical Pigment Volume Concentration

A number of parameters change abruptly at the CPVC. Experimental data on the influence of binders, additives, and suitable pigment preparation are shown in Fig. 35, which is a plot of the viscosity versus PVC curves for three samples of one pigment, incorporated in three different offset varnishes [85], 

Dispersed pigment formulations must be adequately prepared to afford products with optimum commercial properties. This concerns both the application of concentrates and the conversion of concentrates to end use products, which should preferably exhibit good flow properties in combination with high tinctorial strength. Knowledge of the above correlations and mechanisms aid the manufacturer in achieving an optimum in product performance. 

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