Composition for conditioning softwood logs prior to peeling operation
AssigneeGeorgia-Pacific Corporation
InventorL. F. Bornstein
Life of this patent
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Abstract
Veneer production from softwood logs is improved by adding at least about 0.003% of urea to the hot water soaking vats prior to peeling the veneer from the logs. Enhanced results are achieved when urea is added together with a base such as sodium hydroxide.
Claims3
A composition of matter for addition to softwood log soaking vats to improve the yield and grade of peeled veneer, said composition consisting essentially of from about 10 to about 50% by weight urea, a base selected from the group consisting of sodium hydroxide, potassium hydroxide, sodium carbonate and ammonium hydroxide, said base being present in said composition in an amount sufficient to keep the pH of the water in said log soaking vats in the range of from about 6 to about 8 throughout the soaking period, and water.
Dependencies are inferred from the claim text.