| 摘要 |
<p>The present invention relates to a method for the production of brushing-on color dispersions for use in the paper industry by cogrinding natural calcium carbonate (GCC) and precipitated calcium carbonate (PCC), which is characterized in that powdery (GCC) is coground with a slurry containing 5% to 70% by weight of PCC to a particle size distribution of the calcium carbonate of at least 90% by weight smaller than 5 mm, at least 70% by weight smaller than 2 mm, and at least 20% by weight smaller than 1 mm, with a weight average particle size ranging from 0.7 to 3 µm.</p> |
