Abstract
The distribution of calcium carbonate filler retained by mechanical entrapment over a range of crowding numbers was investigated for softwood and hardwood pulps. Measurements on loaded sheets and on sheets for which the filler had been removed show that the distribution of filler in the plane of the sheet is non-uniform and dependent on the degree of crowding in the suspension. Analysis of the results using statistical geometric models for fibre contacts and inter-crossing distances between fibres in suspension gives new insight into the mechanisms of mechanical retention of filler.
| Original language | English |
|---|---|
| Pages (from-to) | 274-276 |
| Number of pages | 3 |
| Journal | Appita Journal |
| Volume | 49 |
| Issue number | 4 |
| Publication status | Published - 1 Dec 1996 |