Official Journal of the Japan Wood Research Society
Table 3 Effect of Psa dosage on kappa number, HexA content, brightness, and viscosity of pulp
Psa dosage (%) | Kappa number | HexA (mmol/kg pulp) | Brightness (% ISO) | Viscosity (cP) | |||||
|---|---|---|---|---|---|---|---|---|---|
Before | After | Before | After | Before | After | Before | After | ||
Ph-kraft pulpa | 0.20 | 21.5 | 20.7 | 12.6 | 10.8 | 41.4 | 45.9 | 85.3 | 39.3 |
0.25 | 15.7 | 14.3 | 15.0 | 12.3 | 41.7 | 46.3 | 49.0 | 29.7 | |
0.30 | 13.2 | 11.0 | 18.0 | 14.4 | 41.9 | 47.9 | 46.1 | 27.0 | |
LOKPb | 0.20 | 9.1 | 8.4 | 60.4 | 56.1 | 62.3 | 66.1 | 18.2 | 17.3 |
0.40 | 9.1 | 7.6 | 60.4 | 52.7 | 62.3 | 67.0 | 18.2 | 15.3 | |
0.60 | 9.1 | 7.1 | 60.4 | 47.5 | 62.3 | 69.0 | 18.2 | 11.7 | |