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9 records – page 1 of 1.

Identifying sawing patterns that increase recovery from MPB logs

https://library.fpinnovations.ca/en/permalink/fpipub37964
Author
Brdicko, J.
Date
June 2009
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Brdicko, J.
Date
June 2009
Material Type
Research report
Physical Description
61 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
British Columbia
Wood
Utilization
Simulation
Saw mills
Pinus contorta
Pinus
Insect killed
Series Number
General Revenue Report Project No. 6267
W-2681
Location
Vancouver, British Columbia
Language
English
Abstract
Dendroctonus monticolae
Insect-killed wood - Utilization
Pinus contorta Dougl. var. latifolia - Sawmilling
Sawmilling - Computer simulation
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Detection of blue stain in lumber by visible and near infrared spectroscopy

https://library.fpinnovations.ca/en/permalink/fpipub41400
Author
Stirling, Rod
Date
October 2008
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Stirling, Rod
Date
October 2008
Material Type
Research report
Physical Description
20 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
Utilization
Stain fungal
Stain
Insects
Insect killed
British Columbia
Series Number
General Revenue Report Project No. 5824
W-2590
Location
Vancouver, British Columbia
Language
English
Abstract
As a result of the activities of the mountain pine beetle which carries with it staining fungi, increasing amounts of bluestained wood are entering the marketplace. Bluestain is a visual defect caused by fungi that colonize the sapwood of trees, logs or lumber. Although typical bluestain fungi do not significantly impact mechanical properties, the wood is less desirable for appearance-grade applications. Bluestain is also associated with increased permeability, which could make it more suitable for preservative treatment. Methods are needed to identify stained lumber in the mill either to remove it from appearance grades or select it for preservative treatment. Detection of bluestain can be made visually, since it is an appearance grade defect. In industry, RGB colour coordinates are used to identify bluestained lumber. However beetle-affected wood from advanced grey stage trees is also anticipated to contain decay. Although the present research focuses on detecting bluestain only, a method of detecting both decay and stain would be preferable. Technology for detection of decay in pulp chips had been developed by Paprican and work is underway to evaluate its effectiveness on lumber. The present research describes efforts to develop an automated spectroscopic system for identification of bluestained lumber. A large visible/near infrared spectrometer from FPInnovations – Paprican Division was used to scan motionless bluestained and clear 2 x 4” lumber on four sides. These spectra were used to model observed visual ratings of bluestain intensity using multivariate statistical methods. A Partial Least Squares (PLS) model developed from the top and bottom spectra was able to differentiate degree of staining. A PLS model from the side spectra was not able to differentiate stained and clear wood.
Dendroctonus monticolae
Insects - Attack on wood - British Columbia
Insect-killed wood - Utilization
Stains - Fungal - Control
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True shape and defects data from MPB affected stems. Final report.

https://library.fpinnovations.ca/en/permalink/fpipub37777
Author
Brdicko, J.
Date
March 2006
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Brdicko, J.
Date
March 2006
Material Type
Research report
Physical Description
29 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
British Columbia
Wood
Utilization
Shape
Recovery
Logs
Insect killed
Series Number
MPBI Project #8.34;4743
W-2249
Location
Vancouver, British Columbia
Language
English
Abstract
Insect-killed wood - Utilization
Recovery
Logs - Defects
Log Shape
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Identify viable non-commodity softwood lumber product diversification opportunities available to Alberta producers

https://library.fpinnovations.ca/en/permalink/fpipub37808
Author
Wahl, A.
Date
April 2006
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wahl, A.
Contributor
Alberta Sustainable Resource Development
Date
April 2006
Material Type
Research report
Physical Description
44 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Alberta
British Columbia
Utilization
Softwoods
Markets
Series Number
W-2341
Location
Vancouver, British Columbia
Language
English
Abstract
In view of the long-standing nature of the Canada-U.S. softwood lumber dispute, this literature review examines opportunities for softwood products that are currently not affected by the dispute. This includes non-commodity softwood products for the U.S. market and softwood lumber opportunities in the domestic Canadian market, Asia and Europe.
Alberta Alliance Project No. 5130-05 pertaining to softwoods - Utilization; softwoods - Markets
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Optimized laminating of seven B.C. species

https://library.fpinnovations.ca/en/permalink/fpipub37570
Author
Troughton, G.E.
Andersen, Axel W.
Date
March 2001
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Troughton, G.E.
Andersen, Axel W.
Contributor
Forest Renewal BC.
Date
March 2001
Material Type
Research report
Physical Description
15 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Second growth
Pseudotsuga menziesii
Pseudotsuga
Populus tremuloides
Populus
Pinus contorta
Pinus
Picea
Larix
Laminate product
Growth
British Columbia
Betula
Aspen
Series Number
W-1753
Location
Vancouver, British Columbia
Language
English
Abstract
Seven B.C. species, namely, interior Douglas fir, coastal second growth Douglas fir, western larch, lodgepole pine, western white spruce, trembling aspen and white birch were evaluated for their laminating properties using different adhesive formulations and pressing conditions. Using optimized gluing and pressing conditions, six of the B.C. species showed excellent bond quality when laminating with radio-frequency (RF) heating and either cross-linked polyvinyl acetate (PVAC) or phenol-resorcinol-formaldehyde (PRF) adhesive. These laminates easily passed the shear block wood failure requirement in the ASTM-D-2559 standard and the delamination requirement in the ASTM-D-1101 standard. Because white birch which has a high density showed the highest block shear strengths for the optimum PRF adhesive formulation, this species showed the lowest average percent wood failure of the seven B.C. species and did not meet the ASTM-D-2559 wood failure requirement of 75%. Using conventional platen pressing at 20 or 25°C, laminates were prepared with different PRF adhesive formulations and the seven B.C. species. Using an optimized PRF adhesive formulation, the laminates for the seven BC species met the above ASTM standard requirements for wood failure and delamination. Overall, the percent wood failure was higher for the laminates made at 25°C indicating more resin cure. Hence, for laminates made with the optimum PRF formulation, PRF-C, the average percent wood failure for western larch at 20°C was 78% compared to 98% at 25°C.
Laminated products - Manufacture - British Columbia
Pseudotsuga menziesii
Larix occidentalis
Pinus contorta Dougl. var. latifolia
Picea glauca
Populus tremuloides
Betula papyrifera
Second growth
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Potential impact of further restrictions on chemical anti-sapstain lumber treatment in British Columbia

https://library.fpinnovations.ca/en/permalink/fpipub41526
Author
Brunette, Gilles G.
Date
June 1988
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Brunette, Gilles G.
Contributor
Anti Sapstain Task Force. COFI
Council of Forest Industries of British Columbia. Anti Sapstain Task Force
Date
June 1988
Material Type
Research report
Physical Description
30 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
British Columbia
Sapstain
Series Number
E-976
Location
Ottawa, Ontario
Language
English
Abstract
Protective Coatings - Environmental Restrictions - Economics
Sapstain - Control - Economic Aspects
Lumber - Protection - Economic Aspects
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Economic impact of restrictions on chemical anti-sapstain lumber treatment in British Columbia

https://library.fpinnovations.ca/en/permalink/fpipub38208
Author
Brunette, Gilles G.
Howatson, A.C.
Date
November 1987
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Brunette, Gilles G.
Howatson, A.C.
Contributor
Canada. Canadian Forest Service
Date
November 1987
Material Type
Research report
Physical Description
19 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
British Columbia
Wood
Sapstain
Pentachlorophenol
Series Number
E-721
Location
Ottawa, Ontario
Language
English
Abstract
Sapstain - Control - Economic Aspects
Fungi, Wood Staining - Control - Economic Aspects
Pentachlorophenates - Environmental Aspects
5614W320
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Evaluation of lumber kilns and drying practices in a number of B.C. and Alberta sawmills

https://library.fpinnovations.ca/en/permalink/fpipub37116
Author
Mackay, J.F.Graham
Date
June 1985
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Mackay, J.F.Graham
Date
June 1985
Material Type
Research report
Physical Description
22 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Seasoning kiln drying
Seasoning
Drying
Kilns
British Columbia
Alberta
Series Number
W-344
Location
Vancouver, British Columbia
Language
English
Abstract
Seasoning - Kiln drying - Alberta
Seasoning - Kiln drying - British Columbia
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Documentation of some fungi growing on unseasoned lumber in British Columbia

https://library.fpinnovations.ca/en/permalink/fpipub40991
Author
Setliff, E.C.
Chung, Wai Chee
Date
October 1984
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Setliff, E.C.
Chung, Wai Chee
Date
October 1984
Material Type
Research report
Physical Description
6 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
British Columbia
Packaging
Wood decay
Series Number
02-65-43-160
W-277
Location
Vancouver, British Columbia
Language
English
Abstract
Decay
Lumber - Packaging
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9 records – page 1 of 1.