Method for the Production of Wood Material Articles with Low Emissions of Chemical Compounds

摘要

The invention relates to a method for production of wood material articles with low emissions of chemical compounds. The applied wood is treated with bisulfite before bonding. On using formaldehyde resins in the bonding agent, wood material articles can be produced with the inventive method with extremely low formaldehyde emissions and very bright colours.

主权项

1. A method for the production of a wood material article comprising: providing wood chips or wood fibres, treating said wood chips or wood fibres prior to a gluing process in saturated water vapour atmosphere or in saturated water vapour air for a duration of 3 to 8 minutes with bisulfite salt at a pressure of 6 to 12 bar, and gluing said wood chips or wood fibres together in a standard gluing process.