Description
Toynol® DS-195L Pigment Paste Grinding Auxiliary DS-195L for coatings
CharacteristicsHigh performance dispersing agents in water-based system
Good wetting effect to pigment and fillings
Outstanding deflocculation
Provide powerful charge repulsion property
Suitable for various powder
Reduce viscosity of grinding system, improve color development of millbase
APEO free
Chemical Components
Solution of high molecular polymers with pigment anchoring group
Highly Recommended Applications
Iron oxide, Transparent iron oxide
Titanium Dioxide
Carbon black
Organic pigments
Physical properties| Item | DS-195L | DS-195H |
| Appearance | Yellow transparent liquid | Yellow transparent liquid |
| Content(%) | 40% | 40% |
| Solvent | water | water |
Grinding operation
Dispersing sand mill, Glass bead(0.8-1.2mm), Filling rate 70%
3000rmp/min 60min
Performance evaluationCentrifugal stability: take 20ml millbase into centrifuge tube, centrifuge 10 min under condition of 3000r/min, then take out to observe the layering of millbase. Pour out liquid and calculate amount and percentage of precipitate.
Viscosity evaluation:Use Brookfield rotational viscometer.
Fineness measure:Scraper fineness meter
Viscosity stability:Store millbase in 100ml wild-mouth bottle at 40ºC for 24 hours, measure viscosity change, ±50% change is regarded qualified.
Example1(★:Excellent ☆:Good )
Experimental pigment: transparent red iron oxide TR-718, powder content 40%
Inorganic pigment content: 40
Dispersant dosage(as supplied): 40
Sodium hydroxide: Appropriate amount(PH mixed to 8-9)
Defoamer(Toynol®): 0.1-0.3
Wetting agent(Toynol®): 0-0.3(as appropriate)
Water: add to 100| Item | Toynol® DS-195L | Imported dispersant |
| Dispersant dosage(SOP) | 40% | 40% |
| Wetting of original powder | Quick | Very quick(foaming seriously) |
| Stock solution stability (centrifugation) | ★ | ☆ |
| Dilution stability(centrifugation) | ★ | ☆ |
| Millbase viscosity | ★ | ☆ |
| Dispersion fineness(μm) | ≤2.5 | ≤2.5 |
| Change of storage viscosity | Without thickening and thixotropy | Without thickening and thixotropy |
Example2(★:Excellent ☆:Good )
Experimental pigment: Titanium dioxide R-996 , powder content 35%
Organic pigment content: 70
Dispersant dosage(as supplied): 10.5
Defoamer(Toynol®): 0.1-0.3
Wetting agent(Toynol®): 0-0.3(as appropriate)
Water: add to 100%| Item | Toynol® DS-195L/H | Toynol® DS-194L | Imported dispersant |
| Dispersant dosage(SOP) | 6% | 6% | 6% |
| Wetting of original powder | Quick | Quick | Very quick |
| Stock solution 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.)
Recommended ApplicationsWater-based inks
Architectural coating
Wood and furniture coatings
Automotive coatings
Can coatings
Anticorrosive paint
Leather coatings
Operation proposals 1. Suggested dosage of organic pigment(Based on pigment, Toynol® dispersants calculate solid content SOP):10-50%;
2. Suggested dosage of inorganic pigment(titanium dioxide)(Based on pigment, Toynol® dispersants calculate solid content SOP):3-7%;
3. Do not add wetting agents separately;
4. Toynol® wetting agents can accelerate original powder wetting;
5. Adding Toynol® defoamers can quickly eliminate grinding foam;
6. To obtain optimal performance, Toynol® additives must be added in water before resin and pigment;
7. Advise gradient test to get optimal dosage;
Packaging/storage
25L/plastic drum;220L/iron drum
As liquid material, this product should be sealed and placed in a dry, cool, well-ventilated place at room temperature
Complaint
