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Advanced technologies to improve penetration of wood treatments : biological incising with Dichomitus squalens in spruce and pine lumber

https://library.fpinnovations.ca/en/permalink/fpipub42460
Author
Dale, Angela
Morris, Paul I.
Date
March 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Dale, Angela
Morris, Paul I.
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
March 2011
Material Type
Research report
Physical Description
18 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Preservation
Pinus
Picea
Series Number
Value to Wood No. FPI#117W
W-2823
Location
Vancouver, British Columbia
Language
English
Abstract
Canadian wood species such as spruce and pine are difficult to treat with wood preservatives or other wood enhancing formulations due to a thin sapwood band and refractory heartwood. One method of improving penetration is by biological incising. Biological incising with Dichomitus squalens was originally developed in Austria in the 1990s to increase the permeability of European spruce prior to treatment with wood preservatives. Recently the patents on this technology lapsed. It was considered unlikely that industrial use of a European white-rot fungus would be acceptable in Canada. FPInnovations therefore conducted a screening test of a range of Canadian isolates of various white-rot fungi to identify an isolate that would be suitable for biological incising of Canadian spruce and pine. Under pure culture conditions, one isolate of Dichomitus squalens isolated from white spruce was found to greatly increase the permeability of the wood, particularly in spruce. The objective of the current study was to determine if these results could be achieved on commercial sized wood under non-sterile conditions more similar to an industrial setting. Lumber samples, 3.8 cm by 8.9 cm by 400 cm in length were incubated in plastic totes with fungal inoculum. Two isolates of fungi were tested as well as two different decontamination methods (steam and Benomyl solution) and two time frames (4 and 6 weeks). Through treatment of spruce samples (19 mm penetration) with 1.7% ACQ was achieved after six weeks incubation with D. squalens 78A (a spruce isolate). In matched samples treated with MCA, a minimum of 10 mm penetration was achieved in 90% of the samples. Strength loss in some individual samples was higher than adjustment factors for conventional incising (over 25%) suggesting that incubation time may need to be shortened. Preservative penetration was more variable in pine but permeability was increased; 60% of the samples reached a minimum penetration of 5 mm. Incubation time and conditions may need to be adjusted to achieve more consistent results. The results of this study show that biological incising can greatly improve the permeability of spruce and pine and can be achieved on 38 by 89 dimension lumber under conditions that could be utilized in an industrial setting. Future work should focus on determining incubation conditions that allow penetration requirements in Canadian standards to be met with acceptable strength loss.
Picea - Preservation
Pinus - Preservation
Preservation - Incising
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Réduction des contraintes résiduelles dans le bois en fin de séchage

https://library.fpinnovations.ca/en/permalink/fpipub39367
Author
Normand, D.
Date
May 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Normand, D.
Date
May 2011
Material Type
Research report
Physical Description
10 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Stresses
Drying
Series Number
Valeur au bois no FPI-108E
E-4707
Location
Québec, Québec
Language
French
Abstract
Residual stress
Lumber - Drying
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Further development of lightweight hollow core sandwich panels for higher requirement applications

https://library.fpinnovations.ca/en/permalink/fpipub39371
Author
Deng, James
Date
March 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Deng, James
Contributor
Natural Resources Canada. Canadian Forest Service
Date
March 2011
Material Type
Research report
Physical Description
159 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Panels
Series Number
Value to Wood No. FPI-150E
E-4711
Location
Québec, Québec
Language
English
Abstract
A joint research project was carried out under the fund of Value to Wood Program. The project is to further develop the range of possible applications for hollow core panels (HCPs), to construct and test prototypes for more demanding applications and to create optimization tools through the development of finite element models (FEM) for these geometrically complex assemblies for minimized materials content and optimized panel structure. The experimental works that mostly involved with development of alternative low density core materials that can be used for light weight sandwich panels were conducted in FPInnovations Quebec lab while the research team from University of Toronto worked for FEM modeling and the research team from University of British Columbia investigated a range of different applications of the light weight sandwich panels. This report documents the research project done at FPInnovations with detail description of research methodology, results, conclusions and recommendation. It consists six sub-reports: 1. Development of Two-Stage Thermo-Reforming Technology for the Manufacturing of Cup-Shape Fibreboard. Part I. Investigation of Effects of Different Resin Systems and Secondary Hot Pressing on Panel Properties. 2. Development of Two-Stage Thermo-Reforming Technology for the Manufacturing of Cup-Shape Fibreboard. Part II. Manufacture of the Cup-Shape Fibreboard Panels. 3. Low Density Particleboard Made with Speciality Isocyanate and Polyurethane Based Resins. 4. Manufacture of Low Density Particleboard Using Lab Made Polyurethane Based Resin. 5. Effect of Wood Particle Geometry on the Density and Strength of Low Density Particleboard. 6. Development of Low Density Particleboard Using Hemp Shives and MDI Resin.
Hollow core
Composite panels
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Identification des stratégies optimales de triage des bois EPS. Étape : Évaluation des technologies de prétriage - température près du point de congélation

https://library.fpinnovations.ca/en/permalink/fpipub39392
Author
Lavoie, Vincent
Savard, Marc
Date
October 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Lavoie, Vincent
Savard, Marc
Date
October 2011
Material Type
Research report
Physical Description
26 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
Pinus
Spruce
Spruce Pine Fir
SPF
Sorting
Drying
Series Number
Projet General Revenue no 201004848
201004848
Location
Québec, Québec
Language
French
Abstract
Ce projet vise à mettre au point une méthodologie et des outils pour aider les usines à évaluer les différentes solutions de triage offertes pour le séchage de bois du groupe EPS et identifier les solutions optimales spécifiques. L’étape du projet faisant l’objet du présent rapport consiste plus particulièrement à évaluer différents systèmes de triage offerts sur le marché dans des conditions hivernales (température du bois sous le point de congélation). Quatre systèmes de triage ont été évalués soit le Préclasseur 3DELTA de Fabrication Delta, le MC-Pro 1500 de NMI, l’optimisateur de séchage du sapin et de l’épinette d’AUTOLOG (SAPTEK) et le système de pesée dynamique SPD de VAB Solutions. Les 3 premiers systèmes ont été testés à l’usine d’AbitibiBowater de Maniwaki tandis que le système par pesée dynamique SPD a été testé à l’usine de Canfor à Daaquam, mais en utilisant le même échantillon de sciages à l’état vert. La proportion d’essences des pièces de l’échantillon était de 41 % d’épinette, 21 % de pin et 38 % de sapin. Les pièces ont été mesurées avec les systèmes dans des conditions de température du bois variant de -2 à 2°C. L’objectif consistant à évaluer les systèmes alors que la température du bois était sous le point de congélation n’a pas été atteint. Les pièces retenues pour fin d’analyse ont été séchées pour permettre d’obtenir la courbe de séchage pour chaque pièce. De cette façon, il a été possible de déterminer le temps de séchage pour chaque pièce à toute teneur en humidité intermédiaire ou l’inverse. Tous les systèmes étudiés ont montré des gains significatifs en productivité pour un triage en deux lots de l’échantillon d’essences mélangées. Le potentiel maximal théorique de gain en productivité par le triage en deux lots est de 33,4 %. Le système 3DELTA a montré des gains en productivité de 28,9 %, le système SAPTEK de 28,4 %, le système MC-Pro 1500 de 24,9 % et le système de pesée dynamique SPD de 18,3 %. À l’intérieur du groupe d’essence épinette/pin, le potentiel maximal de gain en productivité de l’échantillon trié en deux lots est de 8,6 %. Le système de pesée dynamique a montré un résultat de gain en productivité au séchage de 4,1 %, le système MC-Pro 1500 de 3,3 %, le système 3DELTA de 2,9 % et le système SAPTEK de 2,1 %. À l’intérieur du sapin, le potentiel maximal de gains en productivité de tri en deux lots est de 14,7 %. Le système de pesée dynamique SPD a obtenu un résultat de gain en productivité de 6,3 %, les systèmes 3DELTA et MC Pro-1500 de 3,5 % et le système SAPTEK de 3,3 %.
Sorting
SPF (Spruce-Pine-Fir)
Frozen Wood - Moisture Content
Drying
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La proposition-valeur pour le bois lamellé-croisé

https://library.fpinnovations.ca/en/permalink/fpipub39435
Author
Crespell, Pablo
Gaston, Chris
Date
January 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Crespell, Pablo
Gaston, Chris
Date
January 2011
Material Type
Research report
Physical Description
23 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Timber
Laminate product
Analysis
Location
Pointe Claire, Québec
Language
French
Abstract
Cross-laminated timber
Market analysis
Market strategy
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Hardwood Initiative - Element 5: Development of new processes and technologies in the hardwood industry : Coloring and decolorizing wood via biotechnology

https://library.fpinnovations.ca/en/permalink/fpipub39326
Author
Yang, D.-Q.
Gignac, Manon
Date
January 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Yang, D.-Q.
Gignac, Manon
Date
January 2011
Material Type
Research report
Physical Description
50 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Hardwoods
Lumber defects
Series Number
Transformative Technologies Program ; Project No. TT5.15
201002167
Location
Québec, Québec
Language
English
Abstract
Wood color has an important economical impact on wood products. The hardwood lumber industry is facing a particular increase in demand by their customers for wood with an attractive, consistent and specified color. Fungi are a specific group of micro-organisms that can affect wood color. Some fungal species produce various colorful pigments during their growth and can create a preferable color or pattern on wood products, whereas some other species produce bleaching enzymes that can clean unpleasant stained wood products. The objectives of this project were to increase the average value of the hardwood lumber product mix by developing a biological technology to eliminate undesirable wood colors and to produce attractive and consistent wood colors and patterns. Thirty-five fungal species were selected for coloring wood of sugar maple, white birch and yellow birch, whereas 20 fungal species were selected for decolorizing stained wood (chemical or biological stains) of sugar maple, yellow birch and white pine. The wood samples were dip-treated for 30 seconds in spore suspensions and incubated at 25°C and 75% RH up to 8 weeks. Wood color changes were visually inspected weekly and final colors were measured with a colorimeter. The results of coloring wood show that 15 fungal species are promising to color wood of sugar maple, white birch and yellow birch into red, brown, green, grey, black and purple. The heartwood was equally colored as sapwood with most fungal species. Application of 3 or more selected fungal species together on a piece of wood was able to produce a rainbow wood pattern with multiple colors. The process for coloring wood required 1-4 weeks. Weathering gradually reduced color intensity of biologically stained wood if without a protective coat. The results of decolorizing wood show that 17 fungal species are promising: 10 fungal species were able to decolorize white pine blue stain, 3 species decolorize white pine coffee stain, 10 species decolorize sugar maple stains and 11 species decolorize yellow birch stains. Based on visual and instrumental evaluation for color brightness and uniformity of decolorized wood samples, 3 fungal species were identified as potential candidates for decolorizing white pine blue stain, 1 species for white pine coffee stain, 4 species for sugar maple stains and 4 species for yellow birch stains. The process for decolorizing wood required 2-8 weeks.
Hardwoods
Colour of wood
Biotechnology
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FPFMS fines monitoring system : user manual

https://library.fpinnovations.ca/en/permalink/fpipub39327
Author
FPInnovations
Date
March 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
FPInnovations
Date
March 2011
Material Type
Research report
Physical Description
27 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strandboards
Oriented strandboard
Orientation
Series Number
W-2805
Location
Vancouver, British Columbia
Language
English
Abstract
The FPFMS® system uses a CCD camera to continuously collect images of OSB strands that are being conveyed on a flat belt or are dropping in a "waterfall" formation from an elevated chute. These images are then processed through a series of filters and algorithims which calculate the number of edge pixels that are present within each image. Previous FPInnovations research has shown that actual OSB fines level is strongly correlated with number of edge pixels present. By continuous monitoring, the FPFMS® system can, therefore, minimize losses by identifying excessively high fines levels sooner than conventional methods and reduces the time-consuming task of manual OSB strand shaking.
Oriented strandboard - Manufacture
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Effect of adhesive cure on quality of fingerjoined lumber

https://library.fpinnovations.ca/en/permalink/fpipub39328
Author
Pirvu, Ciprian
Date
March 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Pirvu, Ciprian
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
March 2011
Material Type
Research report
Physical Description
45 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Joints
Series Number
Value to Wood No. FPI 121W
W-2809
Location
Vancouver, British Columbia
Language
English
Abstract
The relationship between proof load level of fingerjoined lumber and degree of cure of adhesive bonds was investigated. Tension tests were completed for two different degrees of cure for a single adhesive. The proof load level determined for the partially cured joints did not cause damage to the joints that survived the proof test. Preliminary guidelines for determining appropriate proof load levels for testing fingerjoined lumber with partially cured joints were proposed. The proposed guidelines will need to be validated through mill trials to demonstrate their efficacy and reliability to the manufacturer and third party inspection agency.
Fingerjoined lumber
Glued joints - Finger
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Fingerjoined lumber for truss applications : draft truss handling guidelines and fingerjoined lumber product standard

https://library.fpinnovations.ca/en/permalink/fpipub39329
Author
Lum, Conroy
Date
March 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Lum, Conroy
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
March 2011
Material Type
Research report
Physical Description
40 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Roofs
Trusses
Specifications
Specification
Alloy
Series Number
Value to Wood No. 119W
W-2810
Location
Vancouver, British Columbia
Language
English
Abstract
Under this project, a set of guidelines for using fingerjoined lumber for metal plate connected trusses has been prepared. This project is a result of several projects undertaken over the last 10 years on trusses, trusses and fingerjoined lumber, and the development of new structural wood adhesive standards. The draft guidelines are based on findings from previous Value-to-Wood studies, and on information gathered from truss fabricator interviews and surveys carried out by FPInnovations Industry Advisors of the past year. The guidelines also assume that the fingerjoined lumber is produced to the recently updated National Lumber Grades Authority Special Products Standard (SPS) 4, which was revised to reference the latest edition of the Canadian wood adhesive standard CSA O112.10. While use of this standard permits the fingerjoined lumber industry to use a wider range of structural wood adhesives, it does require that the lumber be marked as “Dry Use Only”. Given that NLGA SPS 4 is the first standard on commodity structural fingerjoined lumber to have a “Dry Use Only” label, the development of these guidelines is timely. The guidelines will not only help the truss industry and builders to better understand and properly use the product, but it will also help in code acceptance of the NLGA SPS 4 standard.
Connectors, Metal plate
Fingerjoined lumber
Trusses - Specifications
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Élément 5 : Développement de nouveaux procédés et technologies pour l'industrie des bois feuillus (Projet 8) - Coloration et décoloration du bois à l'aide de la biotechnologie

https://library.fpinnovations.ca/en/permalink/fpipub39350
Author
Yang, D.-Q.
Gignac, Manon
Date
January 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Yang, D.-Q.
Gignac, Manon
Date
January 2011
Material Type
Research report
Physical Description
52 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Hardwoods
Series Number
Programme des technologies transformatrices ; Projet TT.5.15
201002820
Location
Québec, Québec
Language
French
Abstract
La couleur du bois a un impact économique sur les produits de bois. L’industrie du sciage des bois feuillus reçoit de plus en plus de demande de la part de ses clients pour des produits de bois présentant une couleur précise, constante et attrayante. Les champignons constituent un groupe de micro-organismes spécifiques qui peuvent affecter la couleur du bois. Certaines espèces fongiques produisent divers pigments colorés pendant leur croissance qui peuvent créer une couleur désirable ou un motif sur les produits de bois. D’autres espèces produisent des enzymes de blanchiment qui peuvent décolorer des produits de bois tachés. Les objectifs de ce projet visent à augmenter la valeur moyenne de la gamme de produits de bois feuillus par la mise au point d’une technologie permettant d’éliminer les couleurs indésirables du bois et de produire des couleurs et motifs attrayants et constants. Trente-cinq espèces fongiques ont été sélectionnées pour colorer du bois d’érable à sucre, de bouleau blanc et jaune. Vingt-cinq espèces fongiques ont été sélectionnées pour décolorer du bois taché (taches d’origine chimique ou biologique) d’érable à sucre, de bouleau jaune et de pin blanc. Les échantillons de bois ont été traités par immersion de 30 secondes dans des suspensions de spores et incubés à 25°C et 75 % d’humidité relative jusqu’à 8 semaines. Les changements de la couleur du bois ont été inspectés visuellement hebdomadairement et la couleur finale a été mesurée à l’aide d’un colorimètre. Les résultats de coloration du bois montrent que 15 espèces fongiques sont prometteuse pour colorer le bois d’érable à sucre, de bouleau blanc et de bouleau jaune dans des teintes de rouge, brun, gris, noir et violet. Le duramen a été coloré de la même façon que l’aubier par la plupart des espèces fongiques. L’application d’un mélange de 3 et plus des espèces fongiques sélectionnées sur une même pièce de bois a produit un motif d’arc-en-ciel aux couleurs multiples sur le bois. Le procédé de coloration du bois a été d’une durée de 1 à 4 semaines. Le vieillissement climatique a réduit graduellement l’intensité de la couleur du bois sans couche protectrice. Les résultats de la décoloration du bois montrent que 17 espèces fongiques sont prometteuses : 10 espèces ont décoloré le bleuissement du pin blanc, 3 espèces ont décoloré les taches brunes du pin blanc, 10 espèces ont décoloré les taches de l’érable à sucre et 11 espèces ont décoloré les taches du bouleau blanc. Selon l’évaluation visuelle et au colorimètre pour la brillance et l’uniformité de la couleur des échantillons de bois décolorés, 3 espèces fongiques ont été identifiées comme candidates pour la décoloration du bleuissement du pin blanc, 1 espèce pour les taches brunes du pin blanc et 4 espèces pour les taches de l’érable à sucre et 4 espèces pour les taches du bouleau jaune. Le procédé de décoloration a requis entre 2 et 8 semaines.
Biotechnology
Hardwoods
Colour
Documents
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Impact de la finition sur les émissions de COV dans le temps

https://library.fpinnovations.ca/en/permalink/fpipub39362
Author
Barry, A.
Date
March 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Barry, A.
Date
March 2011
Material Type
Research report
Physical Description
29 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
VOC Volatile Organic Compounds
Organic matter
Series Number
201003262
E-4702
Location
Québec, Québec
Language
French
Abstract
Ce projet avait comme objectifs l’évaluation de l’effet combiné du temps, du type de finition et du type de séchoir utilisé pour polymériser la finition sur les émissions des composés organiques volatils (COV). Pour ce faire deux types de finition un à base d’eau (AkzoNobel T69-4156A Aqualux fast) et un à base de solvant (AkzoNobel T97-4094 Sel Seal Lacque), trois types de séchage soit séchage à air chaud, séchage infrarouge et un séchage à air chaud suivi d’une cuisson UV. Dans le cas du produit séché à l’UV, la finition était également du type aqueux de AkzoNobel (AkzoNobel 439-2225-UV). Les émissions ont été mesurées en fonction du temps jusqu’à 67 jours pour certains échantillons. Il ressort de cette étude que pour un type de finition donné, que le type de séchage ainsi que le temps ont un impact très significatif sur le niveau des émissions ainsi que sur les types de COV individuels détectés. Il ressort en effet que les niveaux d’émission diminuent assez rapidement dans le temps et que pour certains types de séchage certains composés ne sont plus détectés après une certaine période de temps. Également, le niveau initial de ces émissions est passé presque du simple au double entre les produits à base de solvant et ceux à base d’eau. Ce résultat qui apparait surprenant à première vue n’en est pas un vraiment, cette observation est très courante et bien documentée dans la littérature. Le type de séchage utilisé a également démontré son impact sur les émissions. En effet, pour une finition donnée, le séchage à l’infrarouge apparait être celui avec lequel les émissions tendent vers zéro après 60 jours d’exposition des produits, exception faite du formaldéhyde dont le niveau d’émission des produits à base de solvant est presque le même pour les trois types de séchage utilisés pour compléter la polymérisation.
Wood Products - Formaldehyde Emission
Volatile organic compounds (VOCs)
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Assessing new product opportunities for the veneer-based product industry

https://library.fpinnovations.ca/en/permalink/fpipub2762
Author
Wang, Brad J.
Dai, Chunping
Poon, James
Xu, H.
Date
June 2011
Edition
39378
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wang, Brad J.
Dai, Chunping
Poon, James
Xu, H.
Date
June 2011
Edition
39378
Material Type
Research report
Physical Description
27 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Veneer
Utilization
Plywood
Markets
Series Number
W-2849
Location
Vancouver, British Columbia
Language
English
Abstract
Potential market gain for Canadian softwood plywood in residential construction could arise from the emerging Chinese market to build massive numbers of affordable apartments and the upcoming rebuilding effort in Japan following the earthquake and tsunami disaster. Compared to the main Chinese species (poplar), common BC species, such as Douglas-fir, spruce and hem-fir, have competitive advantages in the aspects of log diameter, wood properties and veneer quality and processing productivity. For non-residential construction, Canadian plywood concrete forms also offer competitive advantages over Chinese overlaid poplar counterparts due to their higher stiffness and strength. However, the production cost has to be kept to below US$ 500/m3 for a profit margin. Further, three-ply and four-ply Canadian softwood plywood panels are ideally suited for the base materials of multi-layer composite floor, which currently is gaining momentum in China and other countries. A sizeable increase in industrial and remodelling market is anticipated for the Canadian plywood industry. This will be mainly driven by a number of specialty plywood products, such as container floor and pallet, light truck, utility vehicle, trailer and camper manufacturing. However, these products are not commonly manufactured by larger commodity manufacturers in Canada. China is currently the largest global supplier of container floors, most of which are made from imported plywood, bamboo and poplar veneer. To meet their stringent requirements and gain a market share, Canadian plywood industry should take appropriate actions in adjusting veneer thickness, veneer grade, veneer treatment, and panel lay-up. Japan has developed customized products such as oversized plywood for wall applications, and termite/mould resistant plywood for above ground and ground-contact applications. China has developed numerous new value-added veneer products for niche markets. Such products include marine plywood, sound reducing plywood, non-slip plywood, metal faced plywood, curved plywood and medium density fiberboard (MDF) or particleboard (PB)-faced plywood. In order to stay competitive in the global market, Canadian plywood industry needs to:
remove the trade constraints between softwood plywood and hardwood plywood,
remove in-plant manufacturing barriers to deal with both softwood and hardwood processing,
diversify products for both appearance and structural based applications, and
develop new value-added products for niche markets. This study suggests the following opportunities for Canadian plywood producers to
incorporate naturally decay-resistant species such as cedar as surface veneer and/or perform veneer or glueline treatment to make marine and exterior plywood for improved durability,
characterize veneer properties from the changing resource for better utilization,
peel some thinner and higher quality veneer for making specialty plywood,
conduct stress grading in combination with visual grading to maximize value recovery from the available resource,
increase the flexibility of panel lay-up for domestic/overseas markets and various applications,
develop mixed species plywood by mixing available hardwood species such as birch, maple, alder, aspen veneer (as overlay materials) with softwood plywood to achieve better appearance and higher performance,
develop new structural composite lumber (SCL) products such as veneer strand lumber (VSL) from low quality logs, particularly beetle-killed, and random veneer or waste veneer,
develop new drying, pressing and adhesive technologies for processing high moisture veneer, particularly hem-fir and spruce, to improve productivity and bond quality and reduce panel delamination,
develop light weight and strong hybrid plywood panels for furniture applications, by adding MDF or PB on the face of plywood,
develop hybrid plywood for floor applications to reduce thickness swell and increase dimensional stability and stiffness,
develop hybrid cross-laminated timber (CLT) panels from lumber, plywood and laminated veneer lumber (LVL) for low- and mid-rise residential and non-residential applications, and
develop a series of new product standards for specialty plywood. A market research study for each product opportunity is recommended to develop a solid business case for each.
Composite products - Markets
Plywood - Markets
Plywood - Utilization
Veneers - Markets
Veneers - Utilization
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Element 5 : Application of rapid drying technologies to streamline the lumber manufacturing process - Applying rapid drying technologies to Canadian SPF lumber

https://library.fpinnovations.ca/en/permalink/fpipub5736
Author
Garrahan, Peter A.
Lavoie, Vincent
Elustondo, D.
Date
March 2011
Edition
39357
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Garrahan, Peter A.
Lavoie, Vincent
Elustondo, D.
Date
March 2011
Edition
39357
Material Type
Research report
Physical Description
41 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Pinus
Spruce
Spruce Pine Fir
SPF
Softwoods
Drying
Canada
Series Number
Transformative Technologies Program ; Project TT.5.12
201002819
Location
Québec, Québec
Language
English
Abstract
Spruce Pine Fir (SPF)
Softwoods - Canada
Lumber - Drying
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The value proposition for cross-laminated timber

https://library.fpinnovations.ca/en/permalink/fpipub40006
Author
Crespell, Pablo
Gaston, Chris
Date
January 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Crespell, Pablo
Gaston, Chris
Date
January 2011
Material Type
Research report
Physical Description
26 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Timber
Laminate product
Analysis
Language
English
Documents
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