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A study of some factors promoting kiln brown stain formation in radiata pine
European Journal of Wood and Wood Products, 1997Kiln drying of radiata pine (Pinus radiata D. Don) sapwood induces a brown discolouration, commonly called kiln brown stain. Kiln brown stain generally occurs 0.5–1.5 mm under the surface of the dry sawn lumber. However, subsequent planing of the wood can expose the stain causing substantial revenue loss in the New Zealand highvalue export markets.
B. Kreber, A. N. Haslatt
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The Chemical Nature of Kiln Brown Stain in Radiata Pine
Holzforschung, 2000Summary This paper presents results of a study on the chemical nature of kiln brown stain (KBS) that develops in kiln dried radiata pine (Pinus radiata D. Don) sapwood. KBS is a chocolate brown discolouration which develops approximately 0.5 mm under the timber surface.
Armando G McDonald
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Migration of Kiln Brown Stain Precursors During the Drying of Radiata Pine Sapwood
Holzforschung, 1998Kiln drying of radiata pine (Pinus radiata D. Don) sapwood causes the formation of a brown discolouration, commonly called kiln brown stain. Kiln brown stain occurs just under (0.5-2mm) the wood surface but subsequent skim-dressing exposes the stain causing substantial economic loss in the New Zealand high-value lumber export markets. The present study
B. Kreber, M. Fernandez, A. G. McDonald
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European Journal of Wood and Wood Products, 1998
Two fumigants (methyl bromide and sulphuryl fluoride) were used to treat freshly sawn radiata pine (Pinus radiata D. Don) lumber and log sections to evaluate their influence on development of kiln brown stain. Both treatments reduced severity of stain when compared with controls.
E L Schmidt
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Two fumigants (methyl bromide and sulphuryl fluoride) were used to treat freshly sawn radiata pine (Pinus radiata D. Don) lumber and log sections to evaluate their influence on development of kiln brown stain. Both treatments reduced severity of stain when compared with controls.
E L Schmidt
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Application of a novel de-watering process to control kiln brown stain in radiata pine
European Journal of Wood and Wood Products, 2001mehreren Trocknungszyklen mit Pressluft zwischen 10 und 100 bar unterworfen. Danach wurde die Abnahme der Feuchte, der Feuchtegradient entlang der Proben und das Ausmas der Verfarbung durch Braunverfarbung bestimmt. Die Ergebnisse zeigen, das die Anwendung der Druckzyklen bis 100 bar zu einer gleichformigen Feuchteverteilung fuhrt mit Mittelwerten um ...
B. Kreber, M. R. Stahl, A. N. Haslett
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Forest Products Journal, 2013
ABSTRACT Brown stain makes the appearance of ponderosa pine shop lumber look dark, streaky, and splotchy, which often results in lumber downgrading. When brown stain occurs in a piece of shop lumber, it is often sorted separately and ultimately sold for a discount.
Daniel L. Mottern +2 more
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ABSTRACT Brown stain makes the appearance of ponderosa pine shop lumber look dark, streaky, and splotchy, which often results in lumber downgrading. When brown stain occurs in a piece of shop lumber, it is often sorted separately and ultimately sold for a discount.
Daniel L. Mottern +2 more
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Influence of Kiln Venting on Brown Stain inPinus RadiataSapwood
Drying Technology, 2007This study assesses the influence of a closed drying environment on kiln brown stain in Pinus radiata sapwood. Three sets of matched timber samples (N = 50) were dried at low temperature (50°C), one without and two with kiln venting. Statistical analysis showed that the closed drying environment produced no significant change in the lightness (L∗) of ...
M. van der Pal +4 more
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Holzforschung, 2019
Abstract Xylem sap obtained from radiata pine sapwood using a supercritical CO2 (scCO2) dewatering process contained a complex mixture of solutes comprising carbohydrates, amino acids, alkanoic and diterpene acids, neutral diterpenoids, β-sitosterol and cyclitols.
Robert A. Franich +4 more
openaire +1 more source
Abstract Xylem sap obtained from radiata pine sapwood using a supercritical CO2 (scCO2) dewatering process contained a complex mixture of solutes comprising carbohydrates, amino acids, alkanoic and diterpene acids, neutral diterpenoids, β-sitosterol and cyclitols.
Robert A. Franich +4 more
openaire +1 more source