ExampleⅠ(●:Excellent;◎:Good ) Experimental pigment: phthalocyanine blue 15:2 , powder content 30% Pigment content: 30 Dispersant dosage(as supplied): 30 Defoamer(Toynol®): 0.1-0.3 Wetting agent(Toynol®): 0-0.3(as appropriate) Water: add to 100% Item | Toynol® DS-191L/H | Toynol® DS-193L/H | Comparison with imported dispersant | Dispersant dosage(SOP) | 40% | 40% | 40% | Wetting of original powder | Quick | Quick | Quick | Original liquid stability (centrifugation) | ● | ● | ● | Dilution stability(centrifugation) | ● | ● | ● | Millbase viscosity | ● | ● | ◎ | Dispersion fineness(μm) | ≤2.5 | ≤2.5 | ≤2.5 | Change of storage viscosity | Without thickening and thixotropy | Without thickening and thixotropy | Without thickening and thixotropy |
ExampleⅡ(●:Excellent;◎:Good ) Experimental pigment: permanent yellow P.Y.12, powder content 35% Organic pigment content: 35 Dispersant dosage(as supplied): 26 Defoamer(Toynol®): 0.1-0.3 Wetting agent(Toynol®): 0-0.3(as appropriate) Water: add to 100% Item | Toynol® DS-191L/H | Toynol® DS-193L/H | Comparison with imported dispersant | Dispersant dosage(SOP) | 30% | 30% | 30% | Original powder wetting | Quick | Quick | Quick | Original liquid stability (centrifugation) | ● | ● | ◎ | Dilution stability(centrifugation) | ● | ● | ◎ | Millbase viscosity | ● | ● | ◎ | Dispersion fineness(μm) | ≤2.5 | ≤2.5 | ≤2.5 | Change of storage viscosity | Without thickening and thixotropy | Without thickening and thixotropy | Without thickening and thixotropy |
(When actual operation:First add dispersant into water, then add powder, 4000rmp/min 10min. After powder completely wetting, put into grinding glass beads to start timing grind.) |