Canfor Pulp Limited Partnership Full Bleached Northern Softwood Kraft Pulp ECF 90 Typical Properties
Canfor Pulp Limited Partnership operates the Prince George, Intercontinental, and Northwood Pulp Mills in Prince George. The Intercontinental and Northwood Pulp Mills each produce ECF 90 which is a mixture of softwood species indigenous to the north central interior of British Columbia. The highly versatile fibre properties of our ECF 90 make it suitable for use in the manufacturing of a wide variety of products, especially those requiring the highest tensile strength.
Inherent Pulp Properties Brightness (%ISO) Dirt Levels mm2/kg/ppm) 0.5% CED Viscosity (mPa.s) 89 (delivered) Typically less than 2 mm2/kg or 1 ppm 21.0 Typical Species Analysis Lodgepole Pine White Spruce Sup-alpine Fir 70 25 5
Lodgepole Pine Fibre Properties (Kajaani FS 200) Weight Weighted Length (mm) Coarseness (mg/m) 2.8 0.191 Bale Characteristics Length (cm) Width (cm) Height (cm) Weight (kg) Northwood 83 83 41 247.5
White Spruce Intercon 85 79 40 250
Sub-alpine Fir
Typical Response To Refining On A 12 Inch Sprout Bauer Disc Refiner
Specific Energy (kW*hr/tonne) 0 49 102 208 Freeness CSF (mls) 689 600 500 300 °SR (°) 17.0 21.0 25.0 40.0 Breaking Length (km) 3.6 6.5 8.3 10.2 Tear Index mN.m2/g 25.7 20.2 17.0 13.0 Burst Index (kPa.m2/g) 2.2 4.5 6.1 7.7 Density (g/cm3) 0.54 0.58 0.62 0.66
Interpolations Tear Index (mN.m /g)
2
@ 4 km 27
@ 5 km 24.5
@ 7 km 19.3
@ 9 km 15
@ 10 km 12.9
Typical Response to Refining on a PFI Mill °SR Freeness CSF (°) (mls) 701 600 500 300 17.5 21.0 25.0 40.0
Breaking Length (km) 4.6 10.1 11.2 12.0
Tear Index MN.m2 / g 26.3 11.7 10.1 9.4
Burst Index (kPa.m2 / g) 3.2 8.1 9.0 9.6
Bulk (cm3 / g) 1.66 1.43 1.39 1.34
The pulp and fibre properties listed here are based on long-term averages. Results on individual samples may vary from the values listed above. Pulp Evaluations are done using a 12-inch Sprout Bauer Refiner. Handsheets are prepared and tested based on PAPTAC/TAPPI/ISO procedures and are conditioned at 50% Relative Humidity at 23°C.
July 9, 2007