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Equipment Description:Canadian Softwood Kraft (West Coast, Interior British Columbia) Click here to print the FactSheet on A4 paper


Equipment Description:
Canadian Softwood Kraft (West Coast, Interior British Columbia)
Last updated: 20 December 2005
This Fact Sheet has been viewed: 3323 times.

Distribution... The softwood pulps produced in Interior British Columbiaare from mixtures which vary according to whether the pulpwood is from the northern interior or the southern interior.
   
Fibre Types... Lodgepole pine - Pinus contorta
White spruce - Picea glauca
Western hemlock - Tsuga heterophylla
Northern Douglas fir - Psuedotsuga glauca (Variant of P.menziesii)
Southern Douglas fir - Psuedotsuga menziesii
   
Fibre Properties... Fibre Length 3.1-4.2mm
Fibre Width 35-40µm
Wall Thickness 3.0-7.0µm
Fibre Coarseness 230-310µg/m
   

  Typical Pulp Properties...  
Unbleached, Semi-Bleached and Bleached ECF pulps are available. Softwood pulps from this region are more difficult to refine than those from East Canada, but they can develop a similar tensile and have a reputation of having a higher tear strength. Where the pulp blend contains a high Douglas fir content, papers made from such pulps may have a poor formation.


  Typical Uses...  

Pulps from the Interior of British Coumbia are suitable for many printing and writing grades. Those from the northern interior have excellent reinforcement properties and are particularly suited to lighter weight printing papers such as light weight printings and LWC and SC grades, which have a high groundwood content. The higher tear strength derived from pulps with a higher Douglas fir content is also useful in some Industrial grades such as sack kraft and linerboard


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