Table 3. Application Mode and Thermoforming Settings of Handsheetsa.
| fiber type | added lignin | application mode | thermoforming temperature (°C) | thermoforming pressure (bar) | density (kg/m3) | basis weight (g/m2) |
|---|---|---|---|---|---|---|
| bleached CTMP | 150 | 45 | 307 ± 5 | 149.6 ± 2.5 | ||
| bleached CTMP | organosolv lignin | internal sizing | 150 | 45 | 346 ± 4 | 177.1 ± 0.5 |
| bleached CTMP | organosolv lignin | impregnated | 150 | 45 | 793 ± 81 | 177.7 |
| bleached CTMP | organosolv lignin + cationic starch (50/50) | coated | 150 | 45 | 1159 ± 35 | 217.2 |
| unbleached CTMP | 150 | 500 | 728 ± 12 | 126.6 ± 0.6 | ||
| unbleached CTMP | 175 | 500 | 789 ± 18 | 128.6 ± 0.6 | ||
| unbleached CTMP | 200 | 500 | 820 ± 6 | 134.1 ± 0.6 | ||
| unbleached CTMP | organosolv lignin | internal sizing | 150 | 500 | 853 ± 33 | 155.7 ± 0.7 |
| unbleached CTMP | organosolv lignin | internal sizing | 175 | 500 | 859 ± 14 | 150.4 ± 0.7 |
| unbleached CTMP | organosolv lignin | internal sizing | 200 | 500 | 851 ± 11 | 147.7 ± 0.7 |
| unbleached CTMP | organosolv lignin (pristine + oxidized) | internal sizing | 175 | 500 | 835 ± 27 | 158.3 ± 0.7 |
Experimental errors are given as the standard deviation. Data for the reference case (bleached CTMP, 150 °C and 45 bar) were taken from our previous study.12