Wood treating process

Details Wood treating process Wood treating process

B - Operations, Transporting

27

K

117/120, 117/240

B27K 3/08 (2006.01) B27K 3/34 (2006.01)

Patent

CA 1048407

ABSTRACT An improved process for treating wood which has been impregnated with a solution of a treating agent in a suitable solvent. After the impregnation step, the wood is steamed at an elevated temperature and superatmospheric pressure, thus causing the solvent to condense on the sur- face of the wood. The pressure is then reduced to atmos- pheric pressure and the steaming continued until essentially all of the solvent is removed from the wood. By this pro- cess, deposits of treating agent crystals and wood exudates are largely removed from the surface of the wood.

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