The invention discloses a decoloring treatment method for
Paulownia woods, and the method can be used for effectively solving the decoloring treatment problem of decolored
Paulownia woods. The method comprises the following steps: dividing a raw
Paulownia wood into rough-edged boards with the thickness of 12 mm along the height direction of the raw Paulownia wood, removing the edges of the rough-edged boards, and sawing the rough-edged boards into integral-edged boards, stacking the integral-edged boards into a treating pond, separating each layer of integral-edged boards by using long battens, and stacking and fixing the integral-edged boards into the treating pond; and adding water,
sodium hydroxide and
sodium dodecyl
benzene sulfonate into the treating pond, submerging the integral-edged boards, soaking the integral-edged boards 1-5 days at 5-40 DEG C, wherein the
sodium hydroxide accounts for 0.1-0.3wt% of the water and the
sodium dodecyl benzene sulfonate accounts for 0.005-0.05wt% of the water; adding
hydrogen peroxide and
sodium bicarbonate into the treating pond, uniformly stirring the obtained object and soaking the integral-edged boards 2-3 days at 5-40 DEG C, wherein the
hydrogen peroxide accounts for 2-5wt% of the water and the
sodium bicarbonate accounts for 0.01-0.05wt% of the water; adding sodium
hydrogen sulfite and
borax into the treating pond, uniformly stirring the obtained object, and soaking the integral-edged boards 1-2 days at 5-40 DEG C, wherein the sodium hydrogen
sulfite accounts for 0.05-0.1wt% of the water and the
borax accounts for 0.005-0.01wt% of the water; and finally, taking out the integral-edged boards subjected to soaking and decoloring, washing the integral-edged boards by using water, and
drying the integral-edged boards. The method is simple, rich in raw materials, easy to operate, good in
processing effect and energy-saving and can effectively prevent
paulownia woods from discoloring, thereby improving the quality.