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Audited Supplier | 1. Increased IGT drawing strength; |
| 2. Improve paper whiteness; |
| 3. Improve the absorption of K & N ink; |
| 4. Improve the smoothness of the paper. |
| Appropriate amount of nano-CaCO3 can improve the surface strength and ink absorption of coated paper performance, but if the amount is too large, if the dispersion is not good, the agglomeration of particles will cause the performance of coated paper to decrease. In the case of the same amount of adhesive and dispersing agent, adding a small amount of nano-calcium carbonate to the ordinary coating formula can improve the strength and smoothness of the coating, and also improve the absorption performance of the ink. |
| Nano calcium carbonate is used in coatings, with high whiteness, strong adhesion, good scrub resistance, and certain weather resistance. Practice has proved that the coating after adding nano calcium carbonate can resist ultraviolet rays, and the anti-aging performance has been greatly improved. Another notable feature of nano calcium carbonate is to increase the thixotropy of the coating, which is beneficial to the coating construction. Nano-calcium carbonate has a steric hindrance effect, which can suspend the denser particles in the formula and play a role in anti-settling. |
| Nano-calcium carbonate mainly replaces expensive titanium dioxide in coatings, reduces production costs, and greatly improves performance indicators. The replacement amount of titanium dioxide is 8-12%. Due to the different formulations of customers' coatings, the best replacement quantity is recommended for customers to compare the different replacement quantities and select the best result. In addition, the amount of dispersant, thickener, talc, lithopone, ordinary calcium carbonate, etc. can be reduced as appropriate. |
| The addition ratio of nanometer calcium carbonate instead of titanium dioxide is 1.5: 1 (solid content), that is, replacing 1 part of titanium dioxide and adding 1.5 parts (solid content) of nanometer calcium carbonate. |
| Index | CaCO3 |
| Appearance | White Filter Cake |
| Specific Gravity g / cm3 | 2.5-2.6 |
| Average Particle Size(nm) | 15-40 |
| Particle Shape | Cube |
| PH (10g dissolved in 90ml water) | 8.0-9.0 |
| Moisture% | 50 ± 2 |
| CaCO3(%) | ≥98 |
| MgO(%) | ≤0.5 |
| Packing: | 50KGs Iron Drum or 1000KGs Jumb Bag or packing as per request. |
| Storare: | Storing in sealed, dry and cool condition, not exposing to air for long time, avoiding moisture. |
| Characteristics: | Pink powder, slightly soluble in inorganic acid, insoluble in water. |
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