Table 2 Change of the minimal surface temperature of paper before and after the treatement by the CO2 snow jet with the carbon dioxide flow rate 3.0 g/s and different nitrogen flow rates
N2 flow rate (l/s) | Whatman (°C) | Holmen (°C) |
|---|---|---|
0.3 | − 30.6 ± (1.9) | − 31.0 ± (1.5) |
0.6 | − 32.0 ± (1.8) | − 32.9 ± (1.1) |
1.4 | − 34.6 ± (2.3) | − 36.7 ± (2.2) |